Foster™ -Foster® 95-90 VAPOR-SAFE® DUCT CLOSURE MASTIC

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VAPOR-SAFE ® DUCT CLOSURE MASTIC VAPOR-SAFE DUCT CLOSURE MASTIC is a fire resistive, fibrated, water-based, vapor barrier sealant for indoor or outdoor low, medium and high velocity heating and air conditioning ducts. It performs as a tough and flexible adhesive and sealant, forming a durable s


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Foster® 95-90 VAPOR-SAFE® DUCT CLOSURE MASTIC



VAPOR-SAFE ® DUCT CLOSURE MASTIC

VAPOR-SAFE DUCT CLOSURE MASTIC is a fire resistive, fibrated, water-based, vapor barrier sealant for indoor or outdoor low, medium and high velocity heating and air conditioning ducts. It performs as a tough and flexible adhesive and sealant, forming a durable seal against air leakage when used with reinforcing membrane. Mechanical fasteners of the type and number normally used for duct assemblies are required to provide rigidity to the duct system.

VAPOR- SAFE DUCT CLOSURE MASTIC'S excellent vapor barrier properties make it the perfect choice for duct closure and butt joint sealing on both flexible and rigid faced fiberglass duct systems. It is non-flammable and has a mild odor when wet. It dries odor free.

VAPOR-SAFE DUCT CLOSURE MASTIC is ideal for vapor sealing ASJ, FRK, and FSK jackets and board facings at joints, laps, and over staple and weld pin punctures.

VAPOR-SAFE DUCT CLOSURE MASTIC meets NFPA 90A and 90B 25/50 requirements.

VAPOR-SAFE DUCT CLOSURE MASTIC meets requirements for LEED IEQ 4.2 Low-Emitting Materials, Paints and Coatings. VOC: 26 g/l, less water and exempt solvents.

VAPOR-SAFE DUCT CLOSURE MASTIC contains no asbestos, lead, mercury, or mercury compounds.

LIMITATIONS
Store and apply between 40ºF (4ºC) and 100ºF (38ºC), protect from freezing until dry. 04/14 UL 181A-M UL 181B-M 6P84


COLOR:
Warm White

APPLICATION CONSISTENCY:
Brush, Trowel, Glove or Power Extrusion

AVERAGE WEIGHT / U.S. GALLON (ASTM D 1475):
11.6-11.8 lbs. (1.4 kg/l)

AVERAGE NON-VOLATILE (ASTM D 2369):
56% by volume (69% by weight)

COVERAGE RANGE (FSTM 72):
Brush: 45-55 sq. ft./gal. (1.10-1.35 m2/l) 0.036-0.029 in. (0.9-0.7 mm) wet film thickness

DRYING TIME 73ºF (23ºC) 50% RH (ASTM D 1640):
Set to Touch: 1 hour
Dry Through: 16 hours

SERVICE TEMPERATURE LIMITS (FSTM 165):
20ºF to 200ºF (-7ºC to 93ºC)

WET FLAMMABILITY (ASTM D 3278):
No flash to boiling, 210ºF (99ºC)

WATER VAPOR PERMEANCE:
ASTM E 96 Procedure A, 0.045 perms (0.030 metric perms) at 38 mils dry (0.97 mm).

SURFACE BURNING CHARACTERISTICS (ASTM E 84):
Flame Spread: 0
Smoke Developed: 0
Tested at coverage rate of 45 sq. ft. per gal. (1.1 m2/l) in a 3 in. (7.6 cm) strip. Applied to rigid fiberglass duct board. Type 475, covered with foil/scrim/kraft paper facing material.

VAPOR-SAFE DUCT CLOSURE MASTIC:
Is approved by Florida Power & Light for use in their Duct System Testing and Repair Programs.


TM TradeMark of H.B. Fuller Construction Products

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