Guide specification – Internal wet areas
MasterSeal® 615 membrane system
Note to specifiers:
The purpose of this guide specification is to assist the specifier in developing a project specification for the use of Master Builders
Solution products. This guide document has been prepared to be part of a complete project manual. It is not intended to be a “stand
alone” document, and it is not intended to be copied directly into a project manual.
This guide specification will need to be carefully reviewed for appropriateness for the given project and edited accordingly to comply
with project-specific requirements.
PART 1 – GENERAL
1.
SUMMARY
1.1. Section Includes:
1.1.1.Internal wet area waterproofing for interior application; generally to all amenities, toilets, showers,
bathrooms, laundries, cleaner’s rooms and the like as scheduled.
1.2. Related Sections:
1.2.1.Cast-in-Place Concrete.
1.3. Extent Of Waterproofing:
1.3.1. To the requirements of BCA F1.7 (Vol .1) and 3.8.1.2 (Vol.2).
1.3.2. The work and material used shall comply with the following standards:
1.3.2.1.
AS/NZS 4858 Wet Area Membranes
1.3.2.2.
AS3740-2010 Waterproofing of Wet Areas within Residential Buildings;
1.3.2.3.
AS 1884 App2:Moisture Testing;
1.3.2.4.
1.3.2.5.
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AS/ANZ 4200.1&2 :Pliable Building Membranes and Underlays (Materials, Design and
installation);
BS 8102: Code of practice for protection of structures against water from the ground;
2.
SYSTEM DESCRIPTION
Liquid- hand applied fibre enhanced one component water based polyurethane/acrylic membrane for a range
of waterproofing applications where the membrane is to be covered over with tiles, screeds, concrete beds etc
w i t h l o w VOC.
2.1. Waterproofing System:
2.1.1. Bonding Agent: MasterTop 1600 (MasterTop 1116 for damp structure) or MasterEmaco P 157
2.1.2. Membrane: MasterSeal 615
2.1.3. Bond Breaker: MasterSeal 970, 960 and 950
2.1.4.Performance Requirements of the membrane: Provide material complying with the following
requirements:
Colour
Orange
Gloss level
Semi-Gloss
Density: (approx.)
1.25 kg/litre
Solids Content
80 ± 0.5% v/v
Application Temperature (ambient and substrate):
5°C-35°C
Drying time (23°C / 50% RH)
Touch Dry 2 hours
Re-coating interval
2-4 hours
Serviceable (tiling)
24 hours
Full cure
7 days
Elongation:
>440%
Water Vapour transmission
0.4g/24h/m2
Shore A hardness
65
Dry Film Thickness
1.2mm
The performance data is typical and based upon controlled laboratory conditions. Actual performance on the job site may vary
from these values based on actual site conditions.
3.
SUBMITTALS
3.1. Submit manufacturer's data sheet and SDS on each product.
3.2. Submit manufacturer’s Application Guide for internal wet areas
3.3. Submit maintenance and repair procedure for the membrane.
3.4. Environmentally sustainable requirements: Volatile Organic Compounds test data.
3.5. Quality Control submittals:
3.5.1.Provide protection plan of surrounding areas and non-work surfaces.
BASF Australia Ltd, Construction Chemicals
Guide specification: Internal wet areas- MasterSeal 615
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Sep 2015
4.
QUALITY ASSURANCE
4.1. Qualifications:
4.1.1.Manufacturer Qualifications: Company with minimum 15 years of experience in manufacturing of
specified products and systems.
4.1.2.Manufacturer Qualifications: Company shall be ISO 9001:2000 Certified.
4.1.3.Applicator Qualifications: Company with minimum of 5 years’ experience in application of
specified products and systems on projects of similar size and scope, and is acceptable to
product manufacturer.
4.1.4.Successful completion of a minimum of 5 projects of similar size and complexity to specified
work.
4.1.5.The membrane shall be installed by the respective manufacturer’s approved installer.
4.2. Field Sample:
4.2.1.Install at project site or pre-selected area of building an area for field sample, as directed by
architect.
4.2.2.Provide mock-up of at least 10 m2 to include surface profile and preparation, sealant joint, crack
handling, flashing, and juncture and termination details and allow for evaluation of slip resistance and
appearance.
4.2.3.Apply material in strict accordance with manufacturer’s written application instructions.
4.2.4.Manufacturer’s representative or designated representative will review technical aspects; surface
preparation, and application.
4.2.5.Field sample will be standard for judging workmanship on remainder of project.
4.2.6.Maintain field sample during construction for workmanship comparison.
4.2.7.Do not alter, move, or destroy field sample until work is completed and approved by architect.
4.2.8.Obtain architect’s written approval of field sample before start of material application, including
approval of aesthetics, color, texture, and appearance.
5.
DELIVERY, STORAGE AND HANDLING
5.1. Comply with manufacturer’s ordering instructions and lead-time requirements to avoid construction
delays.
5.2. Deliver materials in manufacturer's original, unopened, undamaged containers with identification labels
intact.
BASF Australia Ltd, Construction Chemicals
Guide specification: Internal wet areas- MasterSeal 615
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Sep 2015
6.
PROJECT CONDITIONS
6.1. Environmental Requirements:
6.1.1.Minimum application temperature is 5ºC and rising.
6.1.2.Do not apply in rain or when rain is expected within 24 hours. Do not apply above 35 ºC or below 5 ºC
or when temperatures are expected to fall below 5 ºC within 24 hours.
7.
PART 2 - PRODUCTS
7.1. MANUFACTURERS
7.1.1.Subject to compliance with requirements, provide products from the following manufacturer:
BASF Australia Pty Ltd
Lvl 12, 28 Freshwater Place
Southbank VIC 3000
Customer Service: 1300 227 300
Internet: www.master-builders-solutions.basf.com.au
7.1.2.Specifications and Drawings are based on manufacturer's proprietary literature from BASF. Other
manufacturers shall comply with minimum levels of material, color selection, and detailing indicated
in specifications or on drawings. Architect will be sole judge of appropriateness of substitutions.
7.2. MATERIALS
7.2.1.Acceptable Product:
7.2.1.1.
7.2.1.2.
7.2.1.3.
7.2.1.4.
7.2.1.5.
7.2.1.6.
7.2.1.7.
Bonding Agent: MasterTop 1600, MasterTop 1116 or MasterEmaco P 157
Membrane: MasterSeal 615
Clean-up: MasterSeal 955
Sealant Primer: MasterSeal P 692
Sealant: MasterSeal CR195
Bandage Tapes (Rolls, 90 degree, 270 degree): MasterSeal 970, 960, 950
Sealing Tape: MasterSeal 930
7.3. MIXING
7.3.1.Mix material per manufacturer instructions.
7.3.2.Color: Orange.
8.
PART 3 - EXECUTION
8.1. SURFACE PREPARATION
8.1.1. Ensure surface is free of all loose material, dirt, dust, foreign particles and general contaminants.
Curing agents, release agents, wax residues and paint layers to be removed by mechanical means to
a clean surface.
BASF Australia Ltd, Construction Chemicals
Guide specification: Internal wet areas- MasterSeal 615
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Sep 2015
8.1.2. Rough surfaces and all voids to be filled to fix low spots and areas of ponding and using BASF mortar
products.
8.1.3. Ensure falls to wastes are as per specification (generally 1:60 to 1:80 in showers and 1:80 and 1:100
for floors.)
8.1.4. All joints in CFC and sheet based substrates to be filled with manufacturer’s recommended joint
sealant. All screws to be recessed and screw hole recesses greater than 1mm to be filled with
manufacturer’s recommended sealant (silicones are not recommended for this duty)
8.1.5.Suitable flexible sealant to be used to seal around edges of wall and floor penetrations and puddle
flanges
8.1.6.Verify substrate has properly cured. If efflorescence is present, mechanically remove it before
proceeding. For extreme cases where this is not adequate, contact Technical Service.
8.1.7.Concrete should have minimum compressive strength of 25 MPa, minimum Bond Strength of 1.5MPa
and be cured for minimum of 28 days or 80 percent of design strength.
8.2. APPLICATION – GENERAL
8.2.1. Priming
8.2.1.1.
Prime surface by applying MasterTop 1600 primer diluted 1:3 with water (porous surfaces) by
brush or roller to total surface area including shower alcove and shower walls to a minimum
height of 1.8m. Coverage of primer to be applied at 1litre per 25m2 (mixed priming solution). Allow
primer to dry.
8.2.1.2.
Prime using MasterTop 1116 on surfaces of low porosity or where a temporary protection against
rising damp is required.
8.2.1.3. Incidental non-porous surfaces including puddle flanges, metal angles and necks of PVC pipe
penetrations should be primed with MasterSeal P 692.
8.2.2. Joins and Wastes
8.2.2.1.
Apply a liberal coat of MasterSeal 615 to all 90/270 degree corner sections.
8.2.2.2.
MasterSeal 615 should extend at least 100mm up walls and returned 100mm onto floors.
8.2.2.3.
Pre made corners: Embed MasterSeal 960 or 950 pre made corners into the wet coat of
membrane with the blue rubber facing the room. Ensure fabric edges are fully saturated by
applying the MasterSeal 615 over front face of the fabric to hold in place. The cloth parts
should be completely encased in the MasterSeal 615 and should cover the front face where
joins are to be made.
8.2.2.4.
Tape: Measure and cut the MasterSeal 970 tape for all perimeter wall/floor junctions and
vertical angles in showers and baths. Into the wet MasterSeal 615 place the cut lengths and
form them to the angle. The MasterSeal 970 should be installed with the blue rubber facing
the wall. This creates an area of the tape not bonded to the substrate allowing it to cope with
any movements. The MasterSeal 615 is to extend a minimum of 100mm up walls and
returned 100mm onto floors. Apply more MasterSeal 615 to encase the fabric section.
BASF Australia Ltd, Construction Chemicals
Guide specification: Internal wet areas- MasterSeal 615
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Sep 2015
8.2.2.5.
Joins between corners and tape: At joins ensure that the MasterSeal 615 is applied to the
corner so that the fabric has a continuous coating and this should continue at least 50mm from
the end of the corner. The MasterSeal 960 or 950 should be applied into the wet MasterSeal
615 on the walls and on the corner. The second coat should be applied to encase the join and
the tape prior to the application of the membrane to the floor and wall.
8.2.2.6.
MasterSeal 970 is to be used to seal all floor wastes level or recessed below floor level. Cut
50mm lengths of the MasterSeal 970. Apply liberal coat of MasterSeal 615 over the floor
substrate extending 100mm out from the perimeter of the waste. Extend MasterSeal 615
down into the waste and coat the perimeter of the pipe to minimum of 20mm depth.
8.2.2.7.
Embed MasterSeal 970 strips into wet coat of MasterSeal 615 membrane and dress into pipe
to minimum depth of 20mm. Ensure perimeter edge of waste and floor abutment is completely
sealed.
8.2.2.8.
Perimeter edges of puddle flanges (at abutment to floor substrate) to be sealed with
MasterSeal 970 using above method.
8.2.2.9.
Tap and outlet pipes should have the MasterSeal 615 applied to the perimeter and sections of
the MasterSeal 970 tape (cut into pieces) applied to create a barrier around the penetration.
After application into the wet MasterSeal 615 apply a topcoat to encase the MasterSeal 970
tape.
8.2.2.10.
For penetrations apply the MasterSeal 615 around the penetration and place the cut bandage
in it and then overcoat to encapsulate the bandage. Penetrations can be sealed using the
continuous bandage (MasterSeal 970).
8.2.3. floor and walls
8.2.3.1.
After the MasterSeal 615 and 970, 960 and 950 tapes and corners have been applied to joins
and drains allow the MasterSeal 615 to become touch dry before the application of the first
coat.
8.2.3.2.
Apply a coat of the MasterSeal 615 membrane using a brush or roller to the total floor area
and up perimeter wall to a height of 150 mm. Apply membrane to shower alcove and shower
walls to a minimum height of 1.8m and as otherwise applicable to AS/NZS 3740.
8.2.3.3.
Allow the membrane to dry for minimum 2-4 hours to allow foot traffic.
8.2.3.4.
Apply the second coat of MasterSeal 615 membrane using brush or roller to total floor
surface, shower alcove and shower walls to minimum height of 1.8m and as otherwise
applicable to AS/NZS 3740.
8.2.3.5.
MasterSeal 615 is to be applied in a minimum of 2 coats at a total coverage of 1.5litres per
m2. Allow membrane to dry for minimum 24 hours prior to screed/tiling application.
8.3. CLEANING
8.3.1.Clean wet membrane from tools and equipment with MasterSeal 955 or Xylene. Remove cured
materials mechanically.
8.3.2. Clean up and properly dispose of debris remaining on project site related to application.
8.3.3.Remove temporary coverings and protection from adjacent work areas.
BASF Australia Ltd, Construction Chemicals
Guide specification: Internal wet areas- MasterSeal 615
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Sep 2015
8.4. CURING AND PROTECTION
8.4.1.Appreciable properties develop within the below timing at 23°C and 50% relative humidity.
Touch Dry
Re-coating interval
Serviceable (tiling)
Full cure
2 hours
2-4 hours
24 hours
7 days
8.4.2.Protect MasterSeal 615 from traffic during curing and prior to tiling.
8.4.3.MasterSeal 615 is not designed for use a long term exposed membrane
8.4.4.Polymer modified cement based tile adhesive are recommended for direct adhesion to the membrane.
8.4.5.Acrylic or SBR bonding agents are recommended for applications of screeds and renders directly over
the membrane.
END OF SECTION
BASF Australia Ltd, Construction Chemicals
Guide specification: Internal wet areas- MasterSeal 615
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Sep 2015
GuideSpecification-MasterSeal615-ANZ-V1-0915