Foster 90-61 Cryolar 1K Vapor Stop Sealant

FOSTER Cryolar 1K Vapor Stop is a ready to use, one component, vapor stop sealant for use in cryogenic applications. It is specially formulated with select synthetic rubbers to form an elastomeric, vapor barrier film capable of spanning the temperature ranges found in cryogenic applications including LNG, ethylene and ammonia production It is suitable for application to PUR and PIR foam, cellular glass and other rigid insulations in conjunction with aluminum, steel and masonry construction materials.

Cryolar 1K Vapor Stop has excellent resistance to moisture and water vapor, forming a vapor tight seal from the cryogenic pipe surface to the ambient outer insulation surface.

Cryolar 1K Vapor Stop is designed for vapor stop applications on insulated cryogenic pipelines and equipment. It can also be used on very low temperature applications to seal seams where a water vapor tight insulation system is required.

Cryolar 1K Vapor Stop contains no lead, asbestos, mercury, or mercury compounds.

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Product Description

COLOR: Dark Grey

APPLICATION CONSISTENCY: Brush, Trowel

AVERAGE WEIGHT/U.S. GALLON (ASTM D 1475):
9.3 lbs. (1.11 kg/l)
Average non-Volatile (ASTM D 2369)
45.0% by volume
57.5% by weight

COVERAGE RANGE (FSTM 72):
(Subject to type of surface being coated)
Dry Thickness:
0.025 to 0.028 in. (0.64 mm to 0.71mm)
Equivalent Wet Coverage:
0.056 in. to 0.064 in. (1.42 mm to 1.63 mm)
3.5 to 4.0 gal. /100 sq. ft. (1.43 to 1.63 l/m2) on a smooth non-porous surface. Porous or rough surfaces will require higher gallonage to attain required dry thickness.

DRYING TIME 73°F (23°C) 50% RH (ASTM D 1640):
Temperatures below 70°F (21°C) may require longer dry times.
Touch: 2-3 hours
Through: 24 hours

SERVICE TEMPERATURE LIMITS (FSTM 203):
(Temperature at coated surface)
Minus 320°F to 250°F (-196°C to 121°C)

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. When tested at 100˚F, 90% RH.

SAFETY (ASTM D 93):
Flash point 115°F (46°C)

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General Insulation Company Inc. is an insulation supplier / insulation distributor that stocks and fabricates a wide variety of industrial and commercial air barrier, vapor barrier, moisture and water barrier products for the construction market.

Foster 90-61 Cryolar 1K Vapor Stop Sealant Technical Data Sheet

Foster 90-61 Cryolar 1K Vapor Stop Sealant Safety Data Sheet