Foster® 90-66CA Cryogenic Sealer
FOSTER CRYOGENIC SEALER
FOSTER Cryogenic Sealer is a two part black elastomeric sealant designed for use in cryogenic and specific chemical resistance applications. It is suitable for application to PIR and polyurethane foam, cellular glass, aerogel and fibrous glass insulations in conjunction with aluminum, steel and masonry construction materials.
Cryogenic Sealer has excellent resistance to moisture, water vapor and other gases. It also has good resistance to most oils, mild solvents, inorganic acids, inorganic bases and salt solutions.
Cryogenic Sealer is designed for very low temperature applications to seal seams where a water vapor tight insulation system is required. It is an excellent vapor stop material for use on cryogenic pipe lines and cryogenic equipment.
Cryogenic Sealer contains no lead, asbestos, mercury, or mercury compounds.
Store and apply between 40°F (4°C) and 100°F (38°C). Always test plastic materials for compatibility when using a solvent base product. Not suggested for application between two impermeable surfaces, or as an exposed sealant for extended periods of time. TM TradeMark of H.B. Fuller Construction Products Inc.
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Brush, spray, roller
AVERAGE WEIGHT/U.S. GALLON (ASTM D 1475):
9.6 lbs. (mixed) (1.15 kg/l)
Average non-Volatile (ASTM D 2369)
65.0% by volume (mixed) 73.5% by weight (mixed)
(Subject to type of surface being coated)
Dry Thickness: 0.031 to 0.036in. (0.79mm to 0.91mm) Equivalent Wet Coverage: 0.048 in. to 0.056 in. (1.22 mm to 1.42 mm) 3 to 3.5 gal./100 sq. ft. (1.22 to 1.43 l/m2 ) on a smooth non-porous surface. Porous or rough surfaces will require higher gallonage to attain required dry thickness.
1:1 by volume
POT LIFE (FSTM 91A):
(Varies with temperature) 6-9 hours @77°F (25°C)
DRYING TIME 73°F (23°C) 50% RH :
Temperatures below 70°F (21°C) and adhesive applications prolonging dry time will require longer cure times. Through: 48 hours Full Cure: 2 weeks
SERVICE TEMPERATURE LIMITS (FSTm203):
(Temperature at coated surface) Minus 320°F to 180°F (-196°C to 82°C) (up to 250 ° F (121 ° C) intermittent)
WATER VAPOR PERMEANCE:
ASTM F-1249: 0.01 Perm (0.0066 Metric Perm) at 0.020-0.025 in. (0.51-0.64 mm) dry film thickness.
Wet flammability (ASTM D 93): Flash point 75°F (24°C) Dry combustibility: Combustible