Foster® 81-42W LAGFAS® ADHESIVE/COATING
FOSTER LAGFAS ® ADHESIVE/COATING
FOSTER LAGFAS Adhesive/Coating is a waterbased polyvinyl acetate emulsion adhesive with typical quick-setting properties, used extensively for adhering and sizing canvas and glass cloths, and other types of fabric covering over thermal insulation installed indoors. It presents a neat white cleanable finish, and will not yellow or become discolored with age. Cotton fabrics shrink tight and smooth onto the insulation.
LAGFAS Adhesive/Coating has excellent brushing characteristics, which will result in better coverage and uniformly coated surfaces.
LAGFAS Adhesive/Coating complies with current requirements regarding use in meat and poultry processing areas under federal inspection. Letter of certification is available upon request.
LAGFAS Adhesive/Coating contains no asbestos, lead, mercury, or mercury compounds.
LAGFAS Adhesive/Coating meets requirements for LEED IEQ 4.1 Low-Emitting Materials, Adhesives and Sealants when used as a lagging adhesive. VOC: 55 g/l, less water and exempt solvents theoretical (<10g/l analytically determined).
LAGFAS Adhesive/Coating is produced under the classification and follow- up service of Underwriter's Laboratories, Inc. and meets NFPA 90A & 90B 25/50 requirements.
Store and apply between 40ºF (4ºC) and 100ºF (38ºC), protect from freezing until dry. Always test foil and paper facings for acceptable adhesion before using.
Brush, spray or dip
AVERAGE WEIGHT / U.S. GALLON (ASTM D 1475):
10.1 lbs. (1.21 kg/l)
AVERAGE NON-VOLATILE (ASTM D 2369):
34% by volume (45% by weight)
COVERAGE (FSTM 72):
(Subject to type of surface being bonded) 80 to 90 sq. ft. per gal. (2.0 to 2.2 m2/l) per coat. 0.020 in. to 0.018 in. wet film thickness (0.51 to 0.46 mm)
BONDING TIME RANGE (FSTM 66):
0 to 10 minutes (depending on temperature and humidity)
SERVICE TEMPERATURE LIMITS (FSTM 70):
(Temperature at coated surface) 0ºF to 180ºF (-18ºC to 82ºC)
WATER VAPOR PERMEANCE (ASTM F 70):
2.0 perms at 0.019 in. dry film thickness (1.3 metric perms at 0.5 mm). Tested at 100ºF (38ºC) and 90% RH.
WET FLAMMABILITY (ASTM D 3278):
No flash to boiling, 212ºF (100ºC)
SURFACE BURNING CHARACTERISTICS (ASTM 84):
Flame Spread: 10
Smoke Developed: 5
Tested at coverage rate of 40 sq. ft./gal. (1.0 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