B1 Fire Resistant Foam

Selsil B1 Fire Resistant Foam is a moisture cure, one component, fire retardant filling and insulation material. Has a semi-rigid structure, and allows vibration and joint movements, although difficult to bend.

Properties

Adheres to wood, brick, stone, cement, plaster, asbestos, drywall, hardboard, and metal substrates.
Resistant to fire for up to 4 hours.
Serves as a smoke blocking sealant.
Fills all kinds of cavities, insulates.
Usable both indoors and outdoors.
Excellent bonding with construction materials.
Foam is waterproof once cured.
Not to be used on polyethylene, Teflon, silicone, and similar materials.
Not to be applied on sensitive substrates.

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PRODUCT FEATURES

	Manual	Gun
Chemical Base	Polyurethane	Polyurethane
Curing Mechanism	Atmospheric Moisture	Atmospheric Moisture
Specific Gravity	17±3 kg/m3 (ASTM D1622)	17±3 kg/m3 (ASTM D1622)
Tack Free Time (L 1 cm)	6±2 min. (ASTM C1620)	6±2 min. (ASTM C1620)
Cutting Time (L 1 cm)	15-30 min. (ASTM C1620)	15-30 min. (ASTM C1620)
Yield	45-50L (ASTM C1536)	45-50L (ASTM C1536)
Expansion	200%-250%	60-90%
Fire Class	B1 (DIN 4102)	B1 (DIN 4102)
Compression Strength	41,5 kPa (DIN 53421)	41,5 kPa (DIN 53421)
Temperature Resistance (cured)	-30°C to +80°C	-30°C to +80°C
Application Temperature	5°C to 30°C	5°C to 30°C
Optimum Application Temperature	20°C to 25°C	20°C to 25°C
Dimensional Stability	-0,87%	-0,87%
Tensile Strength	104,8 kPa	104,8 kPa

Application Details
One component.
Cured by air humidity.
Excellent adhesion to wood, brick, stone, cement, plaster, asbestos, drywall, hardboard, and metal substrates (excluding polyethylene, silicone, and Teflon).
Resistant to fire for up to 4 hours.
Insulates against sound and heat.
Cuttable and paintable when cured.
Fills all kinds of cavities, insulates.
Usable both indoors and outdoors.
Foam is waterproof once cured.
Serves as a smoke blocking sealant.
Gunnable, easy to use.
Not clogged when the application is paused for a brief period of time.
Requires less frequent cleaning.
Changing the tube takes less time.

Storage is 12 months when stored at temperatures between +5ºC/°41F and +25°C/77°F.