Osmosis Treatment
Working manual
1
Osmosis treatments are guaranteed
for 5 years!
Boats are to be treated by a
professional Jotun Osmosis Centre
Safe sailing with Jotun Yachting
The “insurance” of a big brand
Summary
Osmosis
What is Osmosis?
4
The Osmosis process in GRP boats
5
Inspection
6
Repair
Gel Coat Removal
7
Drying
7
Osmosis Treatment
Job procedure
Job procedure - repair of supports
8
10
Paint Specifications
Osmosis Treatment
12
Alternative Osmosis Treatment
13
Osmosis Prevention Treatment
14
Technical Data
Osmoshell
16
Finishing Filler
20
AntiPest
23
NonStop
27
Guarantee and Control Sheet
Guarantee Conditions
32
Osmosis Treatment - Control Sheet
33
Osmosis
3
Osmosis
What is Osmosis?
There is a continuous demand for production of boats based on glass fibre reinforced
polyester resins, a material that offers big advantages. When G.R.P. yachts were first
produced it was believed that they would be devoid of all forms of decay. This has
since been proved wrong with the occurrence of degradation by osmosis.
When two liquids of different concentrations are separated by a semi-permeable
membrane then liquid will migrate in an effort to equalise the difference in concentration. During this process the volume of the most concentrated solution will increase
and a pressure build up can develop. The membrane is the gel coat of a G.R.P. yacht
and the liquid is water. Given time the G.R.P. will absorb water and this will permeate
through the hull into the bilges with little damage. However, a certain amount of the
moisture will breakdown some of the materials used in the laminate itself and this will
lead to a build up of fluids containing acetic acid and glycol, known as osmotic fluids.
Water will migrate into any voids in an effort to dilute the concentration of the osmotic fluids. The osmotic fluid has a higher molecular weight than water and is therefore
unable to leech out. As more moisture is absorbed a liquid pressure builds up and this
leads to blisters within the gel coat.
The hulls of most G.R.P. boats could at some stage during their life develop some
form of osmosis. This occurrence can depend upon various factors including temperature, type of water and how often the hull is allowed to dry out and most importantly,
the quality of the original laminate.
A blister caused by osmosis will contain acetic (vinegar) smelling liquid. It is possible
to discover problems within the hull before the blisters appear if the hull is examined
with a moisture meter.
4
Osmosis process in GRP boats
The water come in through the existing microspheres in the Gel Coat. It concentrates
itself in the poor resin areas, in the air bubbles blocked on the laminate or between
Gel Coat and laminate. The hydrosoluble chemical substances are accumulated on
these areas which have formed water concentrated solutions. Hydraulic pressure encourages the blisters growth destroying the different coats of the laminate until the
Gel Coat brakes to the eliminate pressure.
5
Inspection
It is suggested that all yachts made of polyester fibreglass material be rigorously
inspected prior to annual maintenance and application of antifoulings. The existing
layer of antifouling could mask small mechanical damage and cracking. It is therefore advisable that all antifouling is removed periodically to expose the gel coat and
an inspection carried out prior to the reapplication of the antifouling system.
Osmosis is the biggest problem that can befall a boat made from G.R.P. It manifests
itself first in small blisters or craters that can be concentrated in one area or spread
out over the whole surface of the hole. A vessel made of G.R.P. can develop osmosis
over a long period during which time an irreversible chemical reaction takes place.
The problem only becomes apparent when blisters appear on the surface of the hull.
When the blisters are opened there will be a strong smell of vinegar (acetic acid).
To trace the origin of the blisters a litmus paper should be used, wetting the paper
with the fluid from he blisters. Values of pH in the range 4 - 5 denotes the presence
of acetic acid, values of pH between 10 - 12 indicate the presence of the remains of
accelerating agent used in the laminating process of the G.R.P.
If the hull is not showing any symptoms of osmosis but you want to check the humidity of the laminated layers this can be done with a Skipper Humidity Meter (or
similar). With the selector in Scale 2 readings below 65 show the hull is in good
condition. Before taking any humidity readings you must make sure that the water
tanks and the bilges are completely dry. Measurements can be distorted where metal
or wood reinforcements are present.
6
Repair
Gel Coat Removal
Once the state of the hull has been evaluated the gel coat should be removed with a
GelPlane, starting at the waterline (refer to GelPlane Handbook for details). The thickness and hardness of the gel coat will determine the cutting depht but ideally all gel
coat should be removed to expose the glass fibre bellow.
Once this process if complete then it is necessary to clean the area thoroughly using a
jet wash with hot water and silica sand. This process will remove the areas of fibre where there is a lack of resin and will also prepare the area for subsequent repair material.
Drying
Once the gel coat is removed it is important that the hull is washed repeatedly with
fresh, preferably hot, water at regular intervals. The washing removes the acid and
draws out the contamination which accumulates during the drying process.
Measuring the humidity of the laminate in all zones prior to washing and during the
drying process is essential.
Some readings all over the hull must be taken with a suitable equipment, such us
Skipper Moisture meter. Set the equipment at the Scale 2 and take readings on both
sides, from waterline to the keel.
Note:
Before taking readings, remember to empty bilges and tanks (humidity inside will also
be measured!) and the interior of the boat should be well ventilated.
The drying process will take at least 40 days, depending upon the RH, temperature, etc.
When readings below 40 on Skipper Scale 2 are reached then the osmotic curing system designed by Jotun can be applied.
7
Osmosis Treatment
Job procedure
Since the Gelcoat has been removed, it is necessary to re-build a proper protection
coat on the fibre glass. For that, a solvent free, glass flake reinforced epoxy coating is
used, in order to obtain a true waterproof barrier, by applying the following system:
Apply the first coat of OSMOSHELL with a flat spatula. This must be worked in
all directions to ensure that all cavities are filled with material and to rebuild the
previously cleaned damaged areas.
Within 24 hours apply the first layer of OSMOSHELL, using a flat spatula to
apply the product and a teeth spatula (teeth of 2-3 mm.) to ensure the film thickness. Work vertically from the bottom of the hull towards the top.
After 12 hours and no late than 24 hours the next coat of OSMOSHELL should
be applied, using a flat spatula and filling all valleys left by the teeth spatula application technique.
Between 12 and 24 hours later, remove all sharp areas of OSMOSHELL and apply
one coat of FINISHING FILLER to even the whole surface. This product can be
sanded to a get a smooth finish after 12-16 hours.
After sanding, apply one coat of 100 microns dry film thickness of ANTIPEST
and allow at least 8 hours to dry.
After proper drying as per technical data sheet, apply by roller one coat of 50
microns dry film thickness of NONSTOP and allow 12 hours to dry. Apply one
further coat of 50 microns dry film thickness of NONSTOP and allow to dry.
Application can be done by airless spray applying one single coat of 100 microns
dry film thickness.
8
Job procedure
It is very important to follow below procedure to assure a proper application result:
01. First coat
First step
Osmoshell:
Skim coat applied
to fill in holes, pores
and imperfections.
02. First coat
Second step
Osmoshell:
Applied by tooth
spatula of 2 mm. to
secure 1 mm. height
of the peaks.
03. First coat
Third step
Osmoshell:
Applied by smooth
spatula to fill in
valleys left with first
application so an
even coat of 1 mm.
d.f.t. is obtained.
04. SECOND coat
Finishing Filler:
Applied by smooth
spatula to even the
roughly surface left
by Osmoshell application.
05. SECOND coat
Finishing Filler:
After the Finishing
Filler has cured it
can be sanded to a
smooth finish prior
to painting.
06. THIRD coat
AntiPest:
After the Finishing
Filler has been
sanded, AntiPest is
to be applied, either
by airless or brush/
roller.
06. FOURTH COAT
NonStop:
After the application of the AntiPest,
antifouling can be
applied, either by
airless or brush/
roller.
9
Job procedure - repair of supports
Smooth the edges of the surface using a
chisel, once the products are completely
cured and clean the area with solvent or
BoatWash, prior to sanding, and remove
all dust afterwards.
Carefully mask the area to be painted
using a masking tape. Avoid any application of Osmoshell on top of the newly
applied Antifouling.
Apply the complete osmosis treatment,
primers and antifouling.
10
Paint Specifications
Osmosis Treatment
TECHNICAL SPECIFICATION
Customer:
Project:
Osmosis treatment
Version: 1
Position:
Underwater hull
Area:
System:
Epoxy
Epoxy modified
Antifouling
Date:
Prepared by:
Location:
Revised by:
Issued by:
Jotun
Pre-treatment:
Jotun
High pressure fresh water washing, and degreasing if necessary. Remove
existing paint system and gelcoat. Consult the osmosis treatment manual
for more detailed information.
Film thickness
in (µm)
Capa
nº
Product
m2
Volume
solids
Spec.
dry
Spec.
wet
Recoating intervals
in hours
Loss
(%)
%
1
Osmoshell (skim
coat)
97
2
Osmoshell (tooth
spatula)
3
10ºC
23ºC
40ºC
Thinner
m2/ltr
Min
Max
Min
Max
Min
Max
Nº
Max%
20
35 h
72 h
1624h
72 h
8h
48 h
-
0
97
Total ended
system dry
film thickness:
20
35 h
72 h
1624h
72 h
8h
48 h
-
0
Total
spreading rate
for the 3
coats:
Osmoshell ( smooth spatula)
97
1.000 1.030
20
35 h
72 h
1624h
72 h
8h
48 h
-
0
0,7
4
Finishing Filler, Buff
100
300
300
20
8h
60 h
5h
48 h
2h
32 h
-
0
2,6
5
AntiPest, Grey
42
100
240
20
12 h
7d
4h
3d
3h
2d
17
0
3,4
6
NonStop
50
50
100
20
12 h
-
8h
-
4h
-
7
0
8,0
7
NonStop
50
50
100
20
12 h
-
8h
-
4h
-
7
0
8,0
1.500
* Consult the TDS of each product for drying and curing times.
Remark: NonStop can be changed by any of our antifoulings.
12
Alternative Osmosis Treatment
TECHNICAL SPECIFICATION
Customer:
Project:
Osmosis Alternative treatment
Version: 1
Position:
Underwater hull
Area:
System:
Epoxy mastic
Epoxy modified
Antifouling
Date:
Prepared by:
Location:
Revised by:
Issued by:
Jotun
Pre-treatment:
Jotun
High pressure fresh water washing, and degreasing if necessary. Remove
existing paint system and gelcoat. Consult the osmosis treatment manual
for more detailed information.
Film thickness
in (µm)
Capa
nº
Product
m2
Volume
solids
Spec.
dry
Spec.
wet
Recoating intervals
in hours
Loss
(%)
%
10ºC
23ºC
40ºC
Thinner
m2/ltr
Min
Max
Min
Max
Min
Max
Nº
Max%
1
Epoxy Yacht HB,
Aluminium
87
100
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
2
Epoxy Yacht HB,
Aluminium
87
100
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
3
Finishing Filler,
Buff
100
300
300
20
8h
60 h
5h
48 h
2h
32 h
-
0
2,6
4
Epoxy Yacht HB,
Aluminium
87
100
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
5
Epoxy Yacht HB,
Aluminium
87
100
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
6
Epoxy Yacht HB,
Aluminium
87
100
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
7
Epoxy Yacht HB,
Aluminium
87
100
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
8
AntiPest, Grey
42
100
240
20
12 h
7d
4h
3d
3h
2d
17
0
3,4
9
NonStop
50
50
100
20
12 h
-
8h
-
4h
-
7
0
8,0
10
NonStop
50
50
100
20
12 h
-
8h
-
4h
-
7
0
8,0
1.100
* Consult the TDS of each product for drying and curing times.
Remark: NonStop can be changed by any of our antifoulings.
13
Osmosis Prevention Treatment
TECHNICAL SPECIFICATION
Customer:
Project:
Osmosis prevention system
Version: 1
Position:
Underwater hull
Area:
System:
Epoxy modified
Antifouling
Date:
Prepared by:
Location:
Revised by:
Issued by:
Jotun
Pre-treatment:
Jotun
High pressure fresh water washing, and degreasing if necessary. Remove
existing paint system and sand the Gelcoat with P150 - P180 to give roughness to secure adhesion.
Film thickness
in (µm)
Capa
nº
Product
m2
Volume
solids
Spec.
dry
Spec.
wet
Recoating intervals
in hours
Loss
(%)
%
10ºC
23ºC
40ºC
Thinner
m2/ltr
Min
Max
Min
Max
Min
Max
Nº
Max%
1
Epoxy Yacht HB,
Aluminium
87
150
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
2
Epoxy Yacht HB,
Aluminium
87
150
145
20
24 h
-
10 h
-
4h
-
17
0
6,9
3
AntiPest, Grey
42
100
240
20
12 h
7d
4h
3d
3h
2d
17
0
3,4
4
NonStop
50
50
100
20
12 h
-
8h
-
4h
-
7
0
8,0
5
NonStop
50
50
100
20
12 h
-
8h
-
4h
-
7
0
8,0
500
* Consult the TDS of each product for drying and curing times.
Remark: NonStop can be changed by any of our antifoulings.
14
Technical Data
15
Technical Data
OSMOSHELL
Product description
Osmoshell is a two-pack solventless epoxy coating reinforced with glass flakes which provides a very high structural resistance, and a superior adhesion on polyester substrates. Osmoshell has excellent abrasion and water resistance.
Recommended use
Osmoshell is designed for polyester boats to reduce the risk of osmosis. Suitable to repair gel
coat and other polyester degradations of boats. Its very high chemical resistance makes this
product suitable for bilge protection. Can be applied on metal substrates as well.
Film thickness and spreading rate
Film thickness, dry (μm) Film thickness, wet (μm) Theoretical spreading rate (m²/l) Minimum -
-
-
Maximum -
-
-
Typical
1000
1030
0,97
Physical properties
Colour Light green
Solids (vol %)* 97 ± 3
Flash point >56ºC ± 2 (Setaflash)
Specific Gravity 2 kg/ltr
VOC 0,92 lbs/gal (110 gms/ltr) USA-EPA Method 24
Water resistance Excellent
Abrasion resistance Excellent
Solvent resistance Excellent
Chemical resistance Excellent
*Measured according to ISO 3233:1998 (E)
Surface preparation
All surfaces should be clean and free from contamination. The surface should be assessed
and treated in accordance with ISO 8504.
Bare steel
Cleanliness: Blast-cleaning to Sa 2½ (ISO-8501-1:2007). Power tool cleaning to min. St 2
(ISO 8501-1:2007) may be acceptable, subject to exposure conditions.
Other surfaces
Osmoshell Page 2 of 3
For polyester surfaces, degreasing and sanding or wet blasting.
For aluminium and galvanized surfaces; degreasing, light abrading or sand sweeping.
The coating may be used on other substrates. Please contact your local Jotun office for more
information.
16
Condition during application
Apply at a temperature between 10ºC and 35ºC. Temperature of the substrate should be minimum 3ºC above the dew point of the air measured in the vicinity of the substrate. When the
paint is used in confined spaces, good ventilation is necessary.
Application methods
Brush Use a suitable brush. Care must be taken to achieve the specified dry film thickness.
Other Tooth and Smooth spatula. (Made of stainless steel).
Application data
Mixing ratio (volume) Induction time Pot life (23°C) Cleaner 2:1 Mixing 2 parts Comp. A (base) to be mixed tho-
roughly with 1 part Comp. B (curing agent). Mix the two components thoroughly, in their correct proportions with a knife until the colour is perfectly even (about 2-3 minutes).
15 minutes.
30 minutes. (Reduced at higher temp.)
Jotun Thinner No. 17 to clean equipment
Drying time
Drying times are generally related to air circulation, temperature, film thickness and number
of coats, and will be affected correspondingly. The figures given in the table are typical with:
* Good ventilation (Outdoor exposure or free circulation of air)
* Typical film thickness
* One coat on top of inert substrate
Substrate temperature Surface dry Cured Dry to recoat, minimum Dry to recoat, maximum (1) 10°C 14 h 14 d 35 h 72 h 23°C 8h
7d
20 h 72 h 40°C
2h
3d
8h
48 h
(1) Recommended data given for recoating with the same generic type of paint. The given data must be considered
as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, underlying paint system, requirement for early handling and mechanical strength etc. A
complete system can be described on a system sheet, where all parameters and special conditions could be included.
17
Instruction of use
Fibreglass hull
Surface preparation for osmosis treatments: Remove the gelcoat and the fillers. This operation
shows the fibreglass and the humid parts of the surface, permitting a complete drying of the substrate. It is advisable to blast clean to Osmoshell Page 3 of 3 obtain the best results. Carefully clean
and degrease with fresh water at high pressure several times. It is necessary
to let the surface dry for at least 40 days. Drying period depends on the conditions of the hull. It is
advisable to keep the boat in a dry, well ventilated place at a temperature of 20°C. The degree of
humidity of the substrate should be under 1%.
Paint system: Apply a first coat of Osmoshell with a smooth knife working in all directions to let
the product penetrate in all defects, hollows, etc. After dry to recoat, apply a second coat of Osmoshell starting from the bottom and ending in the top (waterline), by using a tooth knife (tooth
height of 2-3 mm.). Let the product dry (minimum dry to recoat interval) and apply a third coat of
Osmoshell by broad or smooth knife in order to fill the strips, getting an
homogeneous coat. When the coat is dry to recoat, remove sharp edges and fill irregularities, imperfections and pores with Finishing Filler. After dry to recoat sand carefully to even the surface
and apply one coat of AntiPest and the selected antifouling system.
Fibreglass bilge
Surface preparation: Empty the bilge prior any treatment. Remove all traces of contaminants, dirt
and grease, followed by fresh water washing and light sanding of the surface with proper dry paper.
Let the bilge dry.
Paint system: Apply two coats of Osmoshell by brush. Osmoshell can be diluted with Jotun Thinner No. 17 to adjust application properties.
Storage
The product must be stored in accordance with national regulations. Storage conditions are to keep
the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.
Handling
Handle with care. Stir well before use.
Packing size
1,67 litres Comp. A in 2 litres container and 0,83 litre Comp. B in a 1 litre container.
18
Health and safety
Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately
be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and
medical attention sought immediately.
For detailed information on the health and safety hazards and precautions for use of this product,
we refer to the Material Safety Data Sheet.
DISCLAIMER
The information in this data sheet is given to the best of our knowledge based on laboratory testing and practical experience. However, as the product is often used under conditions beyond our
control, we cannot guarantee anything but the quality of the product itself. We reserve the right to
change the given data without notice.
Jotun is a World Wide company with factories, sales offices and stocks in more than 50 countries.
For your nearest local Jotun address please contact the nearest regional office or visit our website
at www.jotun.com
ISSUED 3 JULY 2008 BY JOTUN
THIS DATA SHEET SUPERSEDES THOSE PREVIOUSLY ISSUED
19
Technical Data
FINISHING FILLER
Product description
Finishing Filler is a high-density hand-applied two-component epoxy filler that leaves a smooth
and strong surface. It has good resistance to water and solvents, has very strong cohesion/adhesion
properties and is more flexible than most epoxy fillers. Sandability is good with an approximate
Shore D hardness of 75. Note: Finishing Filler has a much lower viscosity than Lightweight Filler.
Recommended use
Finishing Filler is suitable for above and below-water application, when part of an approved Jotun
system. Normally used to finish surfaces treated with Lightweight Filler, in preparation for sealing
with a solvented epoxy coating.
Film thickness and spreading rate
Film thickness, dry (μm) Film thickness, wet (μm) Theoretical spreading rate (m²/l) Minimum 100
100
9,8
Maximum 3000
3000
0,33
Typical
1000
1030
1
Comments
Application range up to 3 mm.
Physical properties
Colour Light Buff
Solids (vol %)* 98 ± 2
Flash point 110ºC ± 2
Specific Gravity 1,7 kg/ltr
VOC 0,92 lbs/gal (110 gms/ltr) USA-EPA Method 24
10 gms/ltr UK-PG6/23(97). Appendix 3
*Measured according to ISO 3233:1998 (E)
Condition during application
Apply at a temperature between 10°C and 35°C.The temperature of the substrate should be minimum 3°C above the dew point of the air. The temperature and the relative humidity should be
measured in the vicinity of the substrate.
20
Application data
Mixing ratio (volume) Mixing Pot life (23°C) Cleaner Note Drying time
1:1
1 part Comp. A (base) to be mixed thoroughly with 1 part Comp. B (curing agent). Mix the two components
thoroughly, in their correct proportions with a knife until the colour is perfectly even (about 2-3 minutes).
45 minutes.
Jotun Thinner No. 17
This product shall not be thinned. May be sanded after 16-24 h (dependent on temperatures).
Drying times are generally related to air circulation, temperature, film thickness and number
of coats, and will be affected correspondingly. The figures given in the table are typical with:
* Good ventilation (Outdoor exposure or free circulation of air)
* Typical film thickness
* One coat on top of inert substrate
Substrate temperature Surface dry Through dry Cured Dry to recoat, minimum Dry to recoat, maximum (1) 10°C 16 h 48 h 14 d 8 h
60 h 23°C 13 h 14 h 7d
5h
48 h 35°C
4h
10 h
3d
2h
32 h
(1) Provided the surface is free from chalking and other contamination prior to application, there is normally no
overcoating time limit. Best intercoat adhesion occurs, however, when the subsequent coat is applied before preceding coat has cured. If the coating has been exposed to direct sunlight for some time, special attention must be paid
to surface cleaning and mattening/removal of the surface layer in order to obtain good adhesion.
The given data must be considered as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, u derlying paint
system, requirement for early handling and mechanical strength etc. A compl te system can be
described on a system sheet, where all parameters and special conditions could be included.
21
Instruction of use
Apply Finishing Filler onto suitable epoxy products such as Lightweight Filler, Epoxy Yacht HB
or AntiPest. May also be applied over prepared polyurethanes such as TopGloss. For maximum
intercoat adhesion, sand each layer of Finishing Filler. Seal Finishing Filler with two coats of a suitable epoxy coating such as AntiPest. Note: Finishing Filler may be mixed with Ligh weight Filler.
However, mixing in this way should be done in a controlled way - consult Jotun.
Storage
The product must be stored in accordance with national regulations. Storage conditions are to keep
the containers in a dry, cool, well ventilated space and away from source of heat and ignition.Containers must be kept tightly closed.
Handling
Handle with care.
Packing size
1 Kit: 0,5 litre Comp. A in a 1 litre container and 0,5 litre Comp. B in a 1 litre container.
Health and safety
Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately
be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and
medical attention sought immediately.
For detailed information on the health and safety hazards and precautions for use of this product,
we refer tothe Material Safety Data Sheet.
DISCLAIMER
The information in this data sheet is given to the best of our knowledge based on laboratory testing and practical experience. However, as the product is often used under conditions beyond our
control, we cannot guarantee anything but the quality of the product itself. We reserve the right to
change the given data without notice.
Jotun is a World Wide company with factories, sales offices and stocks in more than 50 countries.
For your nearest local Jotun address please contact the nearest regional office or visit our website
at www.jotun.com
ISSUED 17 FEBRUARY 2009 BY JOTUN
THIS DATA SHEET SUPERSEDES THOSE PREVIOUSLY ISSUED
22
Technical Data
ANTIPEST
Product description
AntiPest is a two-pack epoxy, suitable as a long exposure undercoat for epoxy and polyurethane
systems and designed to prevent the osmosis in fibreglass boats.
Recommended use
AntiPest can be used both as primer for all types of substrates, including steel, fibre glass, aluminium and marine timber, and as intermediate adhesion undercoat, for polyurethane or antifoulings
on top of epoxy primers. It is particularly suitable for cycles against osmosis, and provides a good
anti-corrosive effect.
Film thickness and spreading rate
Film thickness, dry (μm) Film thickness, wet (μm) Theoretical spreading rate (m²/l) Minimum 60
140
7
Maximum 100
240
4,2
Typical
80
190
5,2
Comments
When used as first coat on wood, 20% thinning may be necessary.
Physical properties
Colour Solids (vol %)* Flash point Specific Gravity Gloss Water resistance
Abrasion resistance Flexibility Grey
42 ± 2
25ºC ± 2 (Setaflash)
1,25 kg/ltr
Flat
Excellent
Very good
Good
*Measured according to ISO 3233:1998 (E)
Surface preparation
All surfaces should be clean, dry and free from contamination. The surface should be assessed and
treated in accordance with ISO 8504.
Bare steel
Cleanliness: Blast cleaning to Sa 2½ (ISO 8501-1:2007). Roughness: using abrasives suitable to
achieve grade Fine to Medium G (30-50 μm, Ry5) (ISO 8503-2)
Shopprimed steel
Clean, dry and undamaged approved shopprimer.
Coated surfaces
Clean, dry and undamaged compatible primer. Please contact your local Jotun office for more
information.
Other surfaces
For fibreglass, aluminium and galvanized surfaces; degreasing, light abrading or sand sweeping.
The coating may be used on other substrates. Please contact your local Jotun office for more information.
23
Condition during application
The temperature of the substrate should be minimum 10°C and at least 3°C above the dew point of
the air, temperature and relative humidity measured in the vicinity of the substrate. Good ventilation is required in confined areas to ensure proper drying. The coating should not be exposed to oil,
chemicals or mechanical stress until cured.
Application methods
Spray Brush Roller Use airless spray or conventional spray.
Recommended for stripe coating and small areas, care must be taken to achieve the specified dry film thickness.
May be used, but is not recommended for first coat on bare metal. Care must be taken to achieve the specified dry film thickness.
Application data
Mixing ratio (volume) Mixing part Comp. B (curing agent).
Induction time Pot life (23°C) Thinner/Cleaner Guiding data airless spray
Pressure at nozzle Nozzle tip Spray angle Filter Guiding data conventional spray
Pressure at nozzle Nozzle tip Filter Note 4:1
4 parts Comp. A (base) to be mixed thoroughly with 1 15 minutes.
8 hours. (Reduced at higher temp.)
Jotun Thinner No. 17
15 MPa (150 kp/cm², 2100 psi.)
0.31-0.43 mm (0.012-0.016”)
40-80º
Check to ensure that filters are clean.
3 - 4 bar (kg/cm²)
1.6 - 1.8 mm
Check to ensure that water and oil filters are available.
Distance from air compressor to filters is to be of at least 10 m
Drying time
Drying times are generally related to air circulation, temperature, film thickness and number
of coats, and will be affected correspondingly. The figures given in the table are typical with:
* Good ventilation (Outdoor exposure or free circulation of air)
* Typical film thickness
* One coat on top of inert substrate
24
Substrate temperature Surface dry Through dry Cured Dry to recoat, minimum Dry to recoat, maximum (1) 10°C 3h
5h
12 d 12 h
7d
23°C 2h
3h
7d
4h
3d
40°C
1h
2h
5d
3h
2d
(1) Provided the surface is free from chalking and other contamination prior to application, there is normally no
overcoating time limit. Best intercoat adhesion occurs, however, when the subsequent coat is applied before preceding coat has cured. If the coating has been exposed to direct sunlight for some time, special attention must be paid
to surface cleaning and mattening/removal of the surface layer in order to obtain good adhesion.
The given data must be considered as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, u derlying paint
system, requirement for early handling and mechanical strength etc. A compl te system can be
described on a system sheet, where all parameters and special conditions could be included.
Typical paint system
Underwater area:
AntiPest Selected antifouling 1-3 x 100 μm 2 x 50 μm (Dry Film Thickness)
(Dry Film Thickness)
Topsides
AntiPest Speed Undercoat TopGloss 1-2 x 100 μm 1 x 50 μm 2 x 40 μm
(Dry Film Thickness)
(Dry Film Thickness)
(Dry Film Thickness)
Other systems may be specified, depending on area of use.
Instruction of use
Underwater area
Fibreglass, Steel, Aluminium, lead and cast iron
Apply one coat of AntiPest. If necessary, fill damages or imperfections with Lightweight Filler and
finish with Finishing Filler. After sanding, apply two coats of AntiPest and finish with two coats of
the selected antifouling.
Wood
Apply Clipper I 5-15 coat, wet-on-wet, dependant on surface absorption. Apply one coat of AntiPest diluted 10-15% with Jotun Thinner No. 17. If necessary, fill damages or imperfections with
Lightweight Filler and finish with Finishing Filler. After sanding, apply two coats of AntiPest and
finish with two coats of the selected antifouling.
Topside
Fibreglass, Steel, Aluminium, lead and cast iron
Apply one coat of AntiPest. If necessary, fill damages or imperfections with Lightweight Filler and
finish with Finishing Filler. After sanding, apply two coats of AntiPest. To obtain a better finish,
apply one coat of Speed Undercoat, and finish with two coats of TopGloss.
Wood
Paint system: Apply one coat of AntiPest diluted 20% with Jotun Thinner No. 17. If necessary, fill
damages or imperfections with Lightweight Filler and finish with Finishing Filler. After sanding,
apply two coats of AntiPest and finish with two coats of TopGloss.
25
Storage
The product must be stored in accordance with national regulations. Storage conditions are to keep
the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.
Handling
Handle with care. Stir well before use.
Packing size
1 Kit: 0,6 litre Comp. A in a 0,75 litre container and 0,15 litre Comp. B in a 0,30 litre container
1 Kit: 2 litres Comp. A in a 2,5 litres container and 0,5 litre Comp. B in a 0,75 litre container
Health and safety
Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately
be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and
medical attention sought immediately.
For detailed information on the health and safety hazards and precautions for use of this product,
we refer tothe Material Safety Data Sheet.
DISCLAIMER
The information in this data sheet is given to the best of our knowledge based on laboratory testing and practical experience. However, as the product is often used under conditions beyond our
control, we cannot guarantee anything but the quality of the product itself. We reserve the right to
change the given data without notice.
Jotun is a World Wide company with factories, sales offices and stocks in more than 50 countries.
For your nearest local Jotun address please contact the nearest regional office or visit our website
at www.jotun.com
ISSUED 12 NOVEMBER 2008 BY JOTUN
THIS DATA SHEET SUPERSEDES THOSE PREVIOUSLY ISSUED
26
Technical Data
NONSTOP
Product description
NonStop is a high performance, top class self polishing antifouling based on special controlled
depletion binders. This characteristic assures a totally active surface continuously renewed. The
result is a clean hull for the whole season.
Recommended use
NonStop is the ideal antifouling for all type of boats, providing an excellent result for a whole season. Only white and grey colours are recommended for aluminium hulls. The other colours must
not be used on aluminium.
Physical properties
Colour Solids Flash point VOC Black, Dark Blue, Grey, Light Blue, Red and White
(vol %)* 52 ± 2
28ºC ± 2 (Setaflash)
3,68 lbs/gal (440 gms/ltr) USA-EPA Method 24
*Measured according to ISO 3233:1998 (E)
Surface preparation
Coated surfaces
Prior to paint application, all surfaces should be clean, dry and free from contamination. Remove
surface contamination by high pressure fresh water cleaning. To be applied on a clean, dry approved primer/undercoat.
Other surfaces
The coating may be used on other substrates. Please contact your local Jotun office for more information.
Condition during application
The temperature of the substrate should be minimum 3ºC above the dew point of the air, temperature and relative humidity measured in the vicinity of the substrate. Good ventilation is usually
required in confined areas to ensure correct drying.
Application methods
Spray Brush Roller Recommended. Use airless spray or conventional spray
May be used but care must be taken to achieve the specified dry film thickness.
However when using roller application care must be taken to apply sufficient material in order to achieve the specified dry film thickness.
27
Application data
Mixing ratio (volume) Thinner/Cleaner Guiding data airless spray
Pressure at nozzle Nozzle tip Spray angle Filter Guiding data conventional spray
Pressure at nozzle Nozzle tip Filter Note Single pack
Jotun Thinner No. 7
15 MPa (150 kp/cm², 2100 psi).
0.53-0.78 mm (0.021-0.031”)
65-80°
Check to ensure that filters are clean.
3.5 - 4.5 bar (kg/cm²)
1.6 - 1.8 mm
Check to ensure that water and oil filters are available.
Distance from air compressor to filters is to be min. 10 m.
Spray application must only be done by a professional.
Drying time
Drying times are generally related to air circulation, temperature, film thickness and number
of coats, and will be affected correspondingly. The figures given in the table are typical with:
* Good ventilation (Outdoor exposure or free circulation of air)
* Typical film thickness
* One coat on top of inert substrate
Substrate temperature Surface dry Through dry Dry for launching (1) Dry to recoat, minimum (2) 5°C 8h
24 h 30 h 16 h 10°C 5h
16 h 24 h 12 h 23°C 3h
12 h 12 h 8h
40°C
2 h
4h
8h
4h
(1) The drying time will increase with increasing film thickness.
(2) The surface should be dry and free from any contamination prior to application of the subsequent coat.
The given data must be considered as guidelines only. The actual drying time/times before recoating may be shorter or longer, depending on film thickness, ventilation, humidity, u derlying paint
system, requirement for early handling and mechanical strength etc. A compl te system can be
described on a system sheet, where all parameters and special conditions could be included.
Typical paint system
Suitable primer system with AntiPest or Vinyl Primer as a sealer coat.
NonStop 2 x 50 μm (Dry Film Thickness)
Other systems may be specified, depending on area of use.
28
Instruction of use
Gelcoat hulls:
Degrease with suitable cleaner. Wet sand the surface with wet sandpaper No. 180-220. Rinse well
with freshwater and allow to dry. Apply 250 μm Dry Film Thickness or 4 coats of AntiPest and
finish with two coats of NonStop.
Wooden hulls:
Apply 5 to 15 coats of Clipper I, depending on absorption of the substrate. Apply “wet- on-wet” do not let the previous coat dry before applying the next. Wipe of any excess product. Apply 2-3
coats of Vinyl Primer and finish with two coats of NonStop.
Steel hulls:
Blast cleaning or grind back to bare metal. Apply 2 coats of Epoxy Yacht HB, 1 coat of AntiPest
(if Epoxy Yacht HB is not available, apply 3 coats of AntiPest). Finish with two coats of NonStop.
Ferrocement hulls:
Acid wash, then rinse well with freshwater. Allow to dry. Apply 1 coat of Penguard Clear Sealer
and 3 coats of AntiPest. Finish with two coats of NonStop.
Aluminium hulls:
Degrease with suitable degreaser and rinse well with freshwater. Grind and dedust the surface.
Apply 2-3 coats of AntiPest and finish with two coats of NonStop White or Grey. Other colours of
NonStop must not be used on aluminium hulls.
Previously coated surfaces:
NonStop can be applied directly on selfpolishing antifoulings in good conditions. Hard antifoulings
in good condition should be lightly wet sanded before application of NonStop. If the existing
antifouling is a soft or unknown antifouling, it is advisable to apply one preventive coat of Vinyl
Primer.
If the old antifouling is in bad condition, scrape and sand-down any areas of flaking or cracked
antifouling. Wet sand the surface with wet sandpaper No. 180-220. Rinse well with freshwater and
allow to dry. Apply 1 coat of Vinyl Primer and 2 coats of NonStop. For application on aluminium
hulls, NonStop white or grey are the only recommended colour.
Storage
The product must be stored in accordance with national regulations. Storage conditions are to keep
the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.
Handling
Handle with care. Stir well before use.
Packing size
2.5 litres in 3 litres container and 0.75 litres in 0.75 litre container.
29
Health and safety
Please observe the precautionary notices displayed on the container. Use under well ventilated conditions. Do not breathe or inhale mist. Avoid skin contact. Spillage on the skin should immediately
be removed with suitable cleanser, soap and water. Eyes should be well flushed with water and
medical attention sought immediately.
For detailed information on the health and safety hazards and precautions for use of this product,
we refer tothe Material Safety Data Sheet.
DISCLAIMER
The information in this data sheet is given to the best of our knowledge based on laboratory testing and practical experience. However, as the product is often used under conditions beyond our
control, we cannot guarantee anything but the quality of the product itself. We reserve the right to
change the given data without notice.
Jotun is a World Wide company with factories, sales offices and stocks in more than 50 countries.
For your nearest local Jotun address please contact the nearest regional office or visit our website
at www.jotun.com
ISSUED 3 OCTOBER 2008 BY JOTUN
THIS DATA SHEET SUPERSEDES THOSE PREVIOUSLY ISSUED
30
Guarantee and Control Sheet
Guarantee Conditions
GUARANTEE CERTIFICATE No. 123456789
JOTUN “COMPANY NAME”, located at ……………….., together with OSMOSIS CENTRE
“SHIPYARD NAME”, located at…….....…., provide a GUARANTEE for a total period of FIVE
YEARS to Osmosis treatment carried out to the sailing boat / motor boat “……………….”,
model X-Yachts registered with number ……….., property of Mr……………….
SURFACE PREPARATION: GelCoat removed by means of sandblasting, peeling with GelPlane
machine, or disc grinding followed by repair of damaged areas and repeated fresh water
cleaning up to a completed decontamination.
TREATMENT PERFORMED:
Sealing of existing holes or pores with OSMOSHELL applied by spatula / broad knife.
Application of one coat of OSMOSHELL by tooth spatula (up to 1 mm.).
Application of one coat of OSMOSHELL by spatula / broad knife (to rebuild the tooth coat).
Application of one coat of filler FINISING FILLER.
Application of one coat of 100 microns dry film thickness of ANTIPEST.
Application of one coat of 100 microns dry film thickness of Antifouling “Name”
This guarantee, given for a period of FIVE YEARS, covers any claim which could be reported
within the mentioned period due to new osmosis problems found on the treated underwater area.
This guarantee commits JOTUN “COMPANY NAME”, (regarding necessary material supply
to fulfil the repair of damaged areas) and OSMOSIS CENTRE “SHIPYARD NAME”, (regarding
application and labour), in the event of any of the above occurring, in order to carry out
the necessary repairs, at the applicator’s facilities, following the above mentioned surface
preparation and anti-osmosis paint system.
These guarantee commits the boat owner to check the paint system performance during
the yearly dry docking of the boat at the JOTUN’s osmosis centre in order to check and
repair, if necessary, the osmosis treatment.
Exclusions:
GUARANTEE does not cover the following:
a) Treatment carried out on rudder, keel, and other similar areas or supports not part of the
hull itself.
b) Normal degradation of antifouling of sealer applied.
c) Damages on the applied treatment due to abnormal phenomena, such as bad atmospheric / weather conditions, fire, collisions, war, and any other abnormal circumstances out
of the normal use of a boat.
d) Damages on the applied treatment due to mechanical abrasion, friction, strikes and chemical products that may attack the paint system, which is not specifically resistant to them.
e) Dry docking costs related to boat yard stay, crane or travelift, etc.
Place, Date
J OTUN “company name”.
Resp. Name
BOAT YARD
Manager
32
Osmosis Treatment - Control Sheet
1.
Boatyard
information
Boatyard / Applicator:
Address:
Date of form issue:
2.
Owner
information
3.
Yacht
general
information
Owner name:
City:
Owner address: Yacht Name:
Port of register:
Plate number:
Type of boat: Saling yacht:
Motor yacht:
4.
Yacht
detailed
information
Model: Year of construction:
5.
Hull
conditions
Osmosis damage:
6.
Gelcoat
removal
7.
Fibreglass
drying
Lenght:
Beam:
Width:
Spread:
Localised:
Mechanical method:
GelPlane:
Blassting:
Manual method:
Sanding:
Grinding:
Drying process:
Open air:
Closed space:
Dehumidification system:
HotVac system:
Total area:
m2
Other damages:
Drying times:
days
From:
8.
Cleaning
9.
Initial
humidity
readings
To:
Fresh water washing:
Date
Slurry/Wet blasting:
Starboard side
Bow
Centre Stern
33
Port side
Bow
Centre Stern
Drying process control: It is recommended to control the drying process
several times during the treatment. The hull will be ready for applying
the osmosis treatment when the reaings are showing a 5% or lower
values of humidity.
Humidity readings
Starboard side
Date
Bow
Centre Stern
Port side
Bow
Centre Stern
10.
Drying
process
11.
Final
humidity
readings
Date
Starboard side
Bow
Centre Stern
Port side
Bow
Centre Stern
litres and batch numbers of used coatings in this treatment
Product
12.
Product
information
Litres
Batch numbers
Osmoshell
Comp. “A”
Comp. “B”
Finishing Filler
Comp. “A”
Comp. “B”
AntiPest
Comp. “A”
Comp. “B”
AF
13.
Date,
signature
and stamp
Date of fist application of the treatment:
Date of finished treatment:
Signature and stamp:
34
For each area of the boat (bow, centre, aft) write down the average of
measurements for each area showed in below drawing.
Starboard side
Stern
Detailed
moisture
measures
control
sheet, per
areas
Centre
Bow
Port side
Stern
Centre
Date of measurements:
(issue one sheet per measurement day)
35
Bow
Osmosis Treatment
www.jotun.com
38