Foster® 85-70 Spark-Fas® WB Adhesive
FOSTER SPARK-FAS ® WB ADHESIVE
FOSTER SPARK-FAS WB Adhesive is a high tack, rapid-setting water base adhesive used to adhere fibrous glass or mineral wool insulations (up to 6 lbs. density) to painted or unpainted steel, galvanized or aluminum air conditioning or hot air ducts. A synthetic elastomer emulsion, it is non-flammable when wet and extremely fire-resistant when dry. Its consistency resists dripping and spattering.
SPARK-FAS WB Adhesive is ideal for bonding fibrous glass and rigid plastic foam insulations to wood, concrete or other materials of construction.
SPARK-FAS WB Adhesive meets ASTM C 916, Type 1 (ASC-A-7001, Type 1) requirements.
SPARK-FAS WB Adhesive meets MIL-A-3316C, Class 2, grade A requirements, and is listed on the QPL.
SPARK-FAS WB Adhesive meets NFPA 90A and 90B 25/50 requirements.
SPARK-FAS WB Adhesive meets requirements for LEED IEQ 4.1 Low-Emitting Materials, Adhesives and Sealants. VOC: 66 g/l, less water and exempt solvents.
SPARK-FAS WB Adhesive contains no asbestos, lead, mercury, or mercury compounds.
Store and apply between 40ºF (4ºC) and 100ºF (38ºC), protect from freezing until dry. Always test plastic foam insulation for warpage when using a water-base adhesive. Overhead applications may require mechanical fasteners. Not suggested for use between two impermeable surfaces.
Spray, brush or roller
AVERAGE WEIGHT / U.S. GALLON (ASTM D 1475):
8.8 lbs. (1.05 kg/l)
AVERAGE NON-VOLATILE (ASTM D 2369):
50% by volume (56% by weight)
(Subject to type of surface and nature of material to be bonded.) Spray: 250-400 sq. ft. per gal. (6.1 to 9.8 m2 /l) Brush/Roller: 150-200 sq. ft. per gal. (3.7 to 4.9 m2 /l)
BONDING TIME RANGE:
0-20 minutes (depending on temperature, humidity and application rate)
SERVICE TEMPERATURE LIMITS:
(Temperature at coated surface) Minus 20ºF to 200ºF (-29ºC to 93ºC)
FLAMMABILITY (ASTM D 93):
No flash to boiling (over 200ºF, 93ºC)
SURFACE BURNING CHARACTERISTICS (ASTM E 84):
Flame Spread: 15.0
Smoke Developed: 0
Tested at coverage rate of 200 sq. ft. per gal. (4.9 m2 /l)
Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces.
TM TradeMark of H.B. Fuller Construction Products Inc.
Visit us on the web at www.fosterproducts.com