I.S.O.Spray™ S Adhesive
Item Description
Part A: 55 gal (208 L) Drum 48.5 gal (184 L)
Part A: 15 gal (57 L) Drum 14 gal (53 L)
Part B: 55 gal (208 L) Drum 48.5 gal (184 L)
Part B: 15 gal (57 L) Drum 14 gal (53 L)
Item Number
W56RACIASD
W56RACIASP
W56RACIBSD
W56RACIBSP
Product Information
Description:
Firestone I.S.O.Spray S Adhesive is a two-part polyurethane adhesive, mixed and dispensed from a heated high-pressure
spray or bead-extruding system to anchor acceptable roof insulation to acceptable substrates, to adhere multiple layers of
insulation, or to adhere fleece backed UltraPly™ TPO XR membrane.
Product Packaging
Container Size:
Weight per Drum:
Drums per Pallet:
145 lb (66 kg)
9
Part B in 15 gal (57 L) Drum
130 lb (59 kg)
9
Part A in 55 gal (208 L) Drum
500 lb (227 kg)
4
Part A in 55 gal (208 L) Drum
450 lb (204 kg)
4
Part A in 15 gal (57 L) Drum
Method of Application for Insulation Attachment:
1. Install only as much roof insulation as can be covered and made watertight during the workday.
2. Substrates to receive I.S.O.Spray S Adhesive shall be above 40 °F (4.4 °C) clean, smooth, dry, free of sharp edges,
loose and foreign materials, oil, grease, and other contaminates.
3. Prepare the insulation by laying out and planning insulation placement. Trim or cut insulation as necessary to fit
around penetrations. Insulation placement will immediately follow dispensing of I.S.O.Spray S Adhesive. This step
is critical for tapered insulation systems.
4. Dispense I.S.O.Spray S Adhesive on the substrate as follows:
a. Spray Application: Full spray coverage ⅛" to ¼" thick (3.2 to 6.4 mm).
b. Bead Application: ¾" to 1" wide 6" or 12" centered beads (19.1 to 25.4 mm wide 152.4 or 304.8 mm
centered beads).
NOTE: Closer bead spacing may be required at building corners and edges, depending on wind zone.
5. If the I.S.O.Spray S Adhesive does not rise, stop dispensing. Troubleshooting is required to determine why the
adhesive is not rising.
6. Immediately set the insulation boards (maximum size: 4' x 4' [1.2 m x 1.2 m]) after dispensing the I.S.O.Spray S
Adhesive.
7. Immediately after setting the insulation board, weight each board, using full pails of Bonding Adhesive or other
available source of weight that will not damage the roof insulation. This ensures full contact and adhesion during
set-up time. Set-up time will vary depending on ambient conditions.
8. Performance of I.S.O.Spray S Adhesive should be periodically monitored during the workday to verify that sufficient
rise, adhesion, and full bonding is occurring.
9. Do not attempt to apply I.S.O.Spray S Adhesive when unfavorable conditions exist.
Firestone Building Products | Sales: (800) 428-4442 | Technical (800) 428-4511 | www.firestonebpco.com
TIS # 806
Page 1 of 4
9/17/2015
I.S.O.Spray™ S Adhesive
Method of Application for UltraPly TPO XR Membrane Attachment:
1. Install only as much UltraPly TPO XR Membrane as can be completed and made watertight during the workday.
2. Substrates to receive I.S.O.Spray S Adhesive shall be above 40 °F (4.4 °C), clean, smooth, dry, free of sharp edges,
loose and foreign materials, oil, grease, and other contaminates.
3. Starting at the highest roof elevation, unroll and position UltraPly TPO XR Membrane. Position membrane panels so
the laps will be completed in “shingle fashion”, and not “buck” water.
4. Fold the properly positioned membrane panels back to expose the substrate to receive I.S.O.Spray S Adhesive.
5. Dispense I.S.O.Spray S Adhesive on the substrate as follows:
a. Spray Application: Full spray coverage ⅛" to ¼" thick (3.2 to 6.4 mm).
b. Bead Application: ¾" to 1" wide 6" or 12" centered beads (19.1 to 25.4 mm wide 152.4 or 304.8 mm
centered beads).
Note: Closer bead spacing may be required at building corners and edges depending on wind zone.
c. Do not apply I.S.O.Spray S Adhesive to UltraPly TPO XR Membrane. Keep lap areas of UltraPly TPO
XR Membrane clean and free of I.S.O.Spray S Adhesive. Remove any I.S.O.Spray S Adhesive that
contaminates lap areas.
6. If the I.S.O.Spray S Adhesive does not rise, stop dispensing. Troubleshooting is required to determine why the
adhesive is not rising.
7. I.S.O.Spray S Adhesive shall rise (within 1 to 2 minutes). Mate the UltraPly TPO XR Membrane into the freshly
applied adhesive.
8. Using a roller (such as linoleum roller) to ensure proper adhesion, roll the freshly mated UltraPly TPO XR Membrane.
9. Performance of I.S.O.Spray S Adhesive should be periodically monitored during the workday to verify that sufficient
rise, adhesion, and full bonding is occurring.
10. Do not attempt to apply I.S.O.Spray S Adhesive when unfavorable conditions exist.
Acceptable Substrates
Insulation
Attachment?
Substrate
TPO XR
Attachment?
Structural Concrete (New)
Yes
No
Structural Concrete (Existing)
Yes
Yes
Steel
Yes
No
Gypsum Decks
Yes
Yes
Cementitious Woodfiber
Yes
Yes
Modified Bitumen Roofs
Yes
Yes
Plywood and OSB
Yes
Yes
SBS Base Sheets
Yes
Yes
Lightweight Concrete
No
Yes
Notes
Newly poured decks must be sufficiently cured to allow
adhesion to the substrate surface. Cure times vary. A
roof consultant, structural engineer, or concrete industry
professional may be contacted to perform moisture tests
if readiness of concrete is in question.
Positive adhesion test required.
New steel decks may require cleaning to remove
processing oils.
Acceptable lightweight concrete substrates include
cellular or air-entrained concrete. Lightweight concrete
substrates with aggregate (such as perlite or vermiculite)
are not acceptable.
Firestone Building Products | Sales: (800) 428-4442 | Technical (800) 428-4511 | www.firestonebpco.com
TIS # 806
Page 2 of 4
9/17/2015
I.S.O.Spray™ S Adhesive
Acceptable Substrates (Continued)
Existing Asphalt B.U.R.
Yes
Yes
ISO 95+™ GL Insulation, ISOGard™
HD Cover Board, RESISTA™
Insulation, FiberTop Woodfiber,
DensDeck® and DensDeck® Prime,
Expanded Polystyrene (EPS),
Extruded Polystyrene (XPS), Polyiso
Insulation, Woodfiber
Yes
Yes
Existing Singly-Ply Roofs, Coal Tar
Pitch, Fiberglass Insulation, Perlite
Insulation
No
No
Existing substrates containing residual asphalt must be
cleaned and scraped as smooth as possible.
These substrates are not acceptable as an immediate
substrate for this product.
DensDeck is a registered Trademark of Georgia-Pacific.
Storage:






Do not allow I.S.O.Spray S Adhesive to freeze.
Store in original, unopened containers between 65 °F and 85 °F (18.3 °C and 29.4 °C).
Keep bungs on drums tightly closed during storage.
Do not store in direct sunlight.
Do not expose to moisture.
For optimum results, rotate stock to ensure stored material has not exceeded the shelf life.
Shelf Life:
 Shelf life of six to nine (6 to 9) months can be expected when stored in original, unopened containers at temperatures
between 65 °F and 85 °F (18.3 °C and 29.4 °C) and kept out of sunlight.
 Drums indicate a “use before” date.
Coverage Rate:
 Spray Application: Coverage rates will vary by substrate from 60 to 95 ft2/gal (1.5 to 2.3 m2/L).
 Bead Application: Coverage rates of ¾" to 1" (19.1 to 25.4 mm) beads will vary by bead spacing:
o 4" (102 mm) o.c. bead spacing will achieve coverage of 60 to 90 ft2/gal (1.5 to 2.2 m2/L)
o 6" (152.4 mm) o.c. bead spacing will achieve coverage of 90 to 120 ft2/gal (2.2 to 2.9 m2/L)
o 12" (305 mm) o.c. bead spacing will achieve coverage of 170 to 190 ft2/gal (4.2 to 4.7 m2/L)
Precautions:
1. Review applicable Safety Data Sheets (SDS) prior to use or handling.
2. Personnel who are sensitive or allergic to isocyanate or polyurethane should not work with I.S.O.Spray S
Adhesive.
3. Review method of application with spray equipment supplier prior to use.
4. Review spray equipment prior to use. Ensure that all is in good working order: generator, air compressor,
mix/meter/dispense spray unit, transfer pumps, heated hoses, spray gun, etc. Ground spray unit per dispensing
equipment manufacturer’s requirements.
5. Avoid contact with eyes and skin. Use gloves and safety glasses with side shields when handling or dispensing
I.S.O.Spray S Adhesive. Wash thoroughly after handling.
6. Avoid breathing of vapors. Wear respirators, long sleeves and long pants.
Firestone Building Products | Sales: (800) 428-4442 | Technical (800) 428-4511 | www.firestonebpco.com
TIS # 806
Page 3 of 4
9/17/2015
I.S.O.Spray™ S Adhesive
Precautions (Continued):
7. Protect all areas subject to overspray of the I.S.O.Spray S Adhesive. This includes, but is not limited to: cars
parked adjacent to the building receiving the I.S.O.Spray S Adhesive, air intakes/exhausts on the building, roofmounted HVAC units, roof drains, access hatches and windows/skylights accessible to the roof, and any other
item or personnel which may be downwind from spraying the I.S.O.Spray S Adhesive. There will be days that the
wind conditions, as well as temperature conditions, prevent the use of I.S.O.Spray S Adhesive. Do not attempt to
spray I.S.O.Spray S Adhesive when the wind speed exceeds 15 mph (24 km/h). This can be estimated by
observing a flag. When a flag is windblown to the extent that it flies approximately “straight out”, the wind is too
extreme to use I.S.O.Spray S Adhesive on that particular workday.
8. Begin dispensing I.S.O.Spray S Adhesive only when Part A and B pre-heaters have reached 135 to 145 °F (57 to
63 °C) in the mix/meter/dispense unit. Maintain 135 to 145 °F (57 to 63 °C) throughout the heated hoses.
9. When used for insulation attachment, it is imperative that freshly installed insulation is continuously weighted until
such time as the I.S.O.Spray S Adhesive sets up and the board is held in place by the adhesive.
10. Freshly installed UltraPly TPO XR Membrane shall be rolled immediately after mating to ensure proper adhesion.
11. Use caution when removing drum bungs as contents may develop pressure. Loosen bungs ¾" (19.1 mm), and
allow gas to escape before completely removing bungs.
12. Do not burn or torch-cut empty drums. Empty B component drums can be reconditioned at drum re-conditioners.
Empty A (or B) component drums should be disposed of in accordance with local, state, and federal regulations.
LEED® Information:
Post Consumer Recycled Content:
Post Industrial Recycled Content:
Manufacturing Location (Part A):
Manufacturing Location (Part B):
0%
0%
New Martinsville, WV; Baytown, TX
Elwood, IL
*NOTE: LEED® is a registered trademark of the U.S. Green Building Council.
Physical Properties
Property
Typical Performance
Color:
Part A: Light Brown
Part B: Light Brown
Mix Ration of A:B:
1:1 by Volume
Specific Gravity at 77 °F (25 °C):
Part A: 1.24
Part B: 1.10
Viscosity at 77 °F (25 °C) Part A/Part B:
V.O.C. Content:
150 to 250 cps using RVT #2 spindle at 30 RPM
Part A: 0 lb/gal (0 g/L)
Part B: 0.9 lb/gal (108 g/L)
Please contact Quality Building Services Technical Department at 1-800-428-4511 for further information.
This sheet is meant to highlight Firestone products and specifications and is subject to change without notice. Firestone takes responsibility for
furnishing quality materials which meet published Firestone product specifications. Neither Firestone nor its representatives practice architecture.
Firestone offers no opinion on and expressly disclaims any responsibility for the soundness of any structure. Firestone accepts no liability for structural
failure or resultant damages. Consult a competent structural engineer prior to installation if the structural soundness or structural ability to properly
support a planned installation is in question. No Firestone representative is authorized to vary this disclaimer.
Firestone Building Products | Sales: (800) 428-4442 | Technical (800) 428-4511 | www.firestonebpco.com
TIS # 806
Page 4 of 4
9/17/2015