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Foster 65-05 FIRE RESISTIVE C.I. MASTIC

Foster 65-05 FIRE RESISTIVE C.I. MASTIC

FOSTER FIRE RESISTIVE C.I. MASTIC™ is a tough, durable, high solids, vapor retarder and weather barrier mastic for the protection of thermal insulation in outdoor service.
FIRE RESISTIVE C.I. MASTIC™ may also be used on heated lines, vessels and equipment in intermittent or dual temperature service to prevent the entrance of water vapor into the insulation during off periods or on cold cycles. It is outdoor rated and UV resistant.

FIRE RESISTIVE C.I. MASTIC™ is produced under the classification and follow-up service of Underwriter’s Laboratories, Inc.
 

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Product Description

AVERAGE WEIGHT / U.S. GALLON (ASTM D1475):
9.6 lbs. (1.15 kg/l)

AVERAGE NON-VOLATILE (ASTM D2369):
69% by volume (79% by weight)

SERVICE TEMPERATURE LIMITS:
Temperature at coated surface.
-40°F to 200°F (-40°C to 93°C)

WATER VAPOR PERMEANCE (TYPICAL AVERAGE):
ASTM F1249: 0.03 perms (0.02 metric perms) at 1/8 in. (3.2 mm) dry film thickness.
ASTM E96, PROCEDURE A: 0.017 perms (0.011 metric perms) at 115 mils (2.9 mm) dry film thickness.

FIRE RESISTIVE C.I. MASTIC meets the permeance requirements of ASTM C755-19 for below ambient vapor retarder coatings.

WET FLAMMABILITY (ASTM D93):
Flash Point: 106°F (40°C)

SURFACE BURNING CHARACTERISTICS (ASTM E84):
Flame Spread: 35

 

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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 65-05 Technical Data Sheet

Foster 65-05 Safety Data Sheet

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