Foster™ -Foster® 30-45N FOAMSEAL™ Sealant

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FOSTER ® FOAMSEAL ™ 30-45N SEALANT FOSTER ® FOAMSEAL ™ 30-45N Sealant is a gray vapor barrier sealant designed for use with rigid thermal insulation including polystyrene foam. It remains flexible in joints and will not shrink or crack during repeated cycles of high and low tem


Category: construction sealants | elastomeric sealants | isocyanurate insulation...

MasterFormat: Thermal Protection | Joint Protection | Joint Sealants...


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Foster® 30-45N FOAMSEAL™ Sealant



FOSTER ® FOAMSEAL 30-45N SEALANT

FOSTER ® FOAMSEAL 30-45N Sealant is a gray vapor barrier sealant designed for use with rigid thermal insulation including polystyrene foam. It remains flexible in joints and will not shrink or crack during repeated cycles of high and low temperatures.

FOAMSEAL 30-45N Sealant seals the joints of cellular glass, PIR, polystyrene and other insulations against the entrance of moisture. When used as a bedding compound on iron or steel surfaces and as a joint sealant, 30-45N provides additional protection to the blocks of insulation. Damage to the insulation due to migration of moisture is minimized.

FOAMSEAL 30-45N Sealant is water and weather resistant and is often used as a sealant and flashing compound where structural parts must penetrate an insulation surface. It is also suggested for use to seal seems in metal jacketing.

FOAMSEAL 30-45N Sealant meets requirements for LEED IEQ 4.1 Low-Emitting Materials, Adhesives and Sealants. VOC: 85 g/l, less water and exempt solvents.

FOAMSEAL 30-45N Sealant contains no asbestos, lead, mercury, or mercury compounds.

LIMITATIONS
Store between 40ºF (4ºC) and 100ºF (38ºC). Apply between 50ºF (10ºC) and 110ºF (43ºC). Allow to cure one week before placing in heated service. Not suggested for use under solvent base elastomeric mastics and coatings, if minor surface discoloration and/or dirt pick-up would be objectionable. Discoloration can be minimized by allowing 24 to 48 hours cure time before top coating. Make certain this product is completely dry and the area free from product odor if food is involved.




COLOR:
Gray

APPLICATION CONSISTENCY:
Trowel or power extrusion

AVERAGE WEIGHT / U.S. GALLON (ASTM D 1475):
14.1 lbs. (1.69 kg/l)

AVERAGE NON-VOLATILE:
92% by volume (95% by weight)

COVERAGE RANGE:
Trowel: 12 to 25 sq. ft./gal. (0.29 to 0.61 m2/l) 1/8 in. to 1/16 in. wet film thickness (3.2 mm to 1.6 mm)

DRYING TIME 73ºF (23ºC) 50% RH:
To Touch: Skins over in 24 hours Full Set: 7 days

SERVICE TEMPERATURE LIMITS:
(Temperature at coated surface) Minus 100ºF to 300ºF (-73ºC to 149ºC)

WATER VAPOR PERMEANCE:
ASTM F-1249, 0.06 perm (0.04 metric perm) tested in 1/8"( 3.2mm) film at 100 ° F (38 ° C) and 90%RH The water vapor transmission through 1 inch of impermeable insulation in 12 X 18 in. blocks with 1/8 in. joints of 30-45N is too small to measure.

WET FLAMMABILITY (ASTM D 3278):
142ºF (61ºC)

COMBUSTIBILITY (dry):
Combustible. Flame spread and fuel contribution negligible when used as sealant in 1/8 in. (3.2 mm) wide joints of incombustible insulation. ® and TM TradeMarks of H.B. Fuller Construction Products Inc.

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