Foster® 30-36 Sealfas® Coating
FOSTER ® SEALFAS ® COATING
Foster ® Sealfas ® Coating is a white, fire resistive, tough, washable, abrasion-resistant indoor coating for thermal insulation. It is also used as a lagging and lap adhesive for canvas and glass lagging cloth. It has excellent brushing characteristics, which will result in better coverage, and more uniformly coated surfaces. It presents a neat white finish, and will not yellow or become discolored with age. The surface can be washed free of grease, oil, soot, and other dirt accumulation.
Sealfas Coating provides a protective finish for insulation on air conditioning ducts and cold water piping when applied in 2 coats with reinforcing fabric embedded between coats. When relative humidity exceeds 75% for continuous periods, or where the insulated piping or equipment contains chilled water, brine or refrigerant, additional vapor barrier protection is suggested.
Sealfas Coating is compatible with polystyrene and polyurethane foam insulations. It may be applied to the joint or edges of fibrous duct liner insulations to seal and prevent air erosion.
Sealfas Coating conforms with current requirements regarding use in meat and poultry processing areas under federal inspection. Letter of certification is available upon request.
Sealfas Coating meets the requirements of Military Specification MIL-A-3316C Class 1, Grade A, and is listed on the Q.P.L.
Sealfas Coating is approved by the U.S. Coast Guard under 164.012.
Sealfas Coating meets requirements for LEED IEQ 4.2 Low- Emitting Materials, Paints and Coatings. VOC: 15 g/l, less water and exempt solvents.
Sealfas Coating is produced under the classification and follow- up service of Underwriter's Laboratories, Inc. and meets NFPA 90A and 90B 25/50 requirements.
Sealfas Coating contains no asbestos, lead, mercury, or mercury compounds.
Store and apply between 40ºF (4ºC) and 100ºF (38ºC), protect from freezing until dry. Always test foil and paper facings for acceptable adhesion before using.
Brush or spray
AVERAGE WEIGHT / U.S. GALLON (ASTM D 1475):
10.4 lbs. (1.25 kg/l)
AVERAGE NON-VOLATILE (ASTM D 1644):
40% by volume (51% by weight)
COVERAGE RANGE (FSTM 72):
(Subject to the type of surface being coated.) Wet coverages shown below are for smooth non-porous surfaces. Porous or rough surfaces may require higher gallonage to attain required dry thickness. 40-70 sq. ft. per gal. (1.0-1.7 m2/l) per coat 0.040 in. to 0.023 in. wet film thickness (1.0 to 0.6 mm) per coat
DRYING TIME 73ºF (23ºC) 50% RH (ASTM D 1640):
Set to Touch: 2 Hours
Dry Through: 15 Hours
SERVICE TEMPERATURE LIMITS (FSTM 70):
(Temperature at coated surface) 0ºF to 180ºF (-18ºC to 82ºC)
WATER VAPOR PERMEANCE (ASTM F 1249):
0.5 - 1.5 perms at 0.031 in. dry film thickness, (0.9 metric perms at 0.8 mm)
WET FLAMMABILITY (ASTM D 3278):
No flash to boiling, 212ºF (100ºC)
SURFACE BURNING CHARACTERISTICS (ASTM E 84):
Flame Spread: 10
Smoke Developed: 5
Tested at coverage rate of 40 sq. ft./gal. (1.0 m2/l).
Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces. TM TradeMark of H.B. Fuller Construction Products Inc.
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