Foster® 35-00 / 45-00 SEALFAS G-P-M® MASTIC
FOSTER ® SEALFAS G-P-M ® MASTIC
Foster ® Sealfas G-P-M ® Mastic is a high solids waterbase general purpose mastic having excellent trowel and spray properties. G-P-M is used for the protection of thermal insulation and hard, dry cement coats, both indoors and outdoors.
Sealfas G-P-M Mastic is fire-resistive and features ease of application, non-flammability, non-toxicity, mild odor, insulation compatibility, good package stability, plus excellent outdoor durability.
Sealfas G-P-M Mastic meets NFPA 90A & 90B 25/50 requirements.
Sealfas G-P-M Mastic is produced under the classification and follow-up service of Underwriter's Laboratories, Inc.
Sealfas G-P-M Mastics 35-00 and 45-00 conform with current requirements regarding use in meat and poultry processing areas under federal inspection. Letter of certification is available upon request.
Nuclear Grade Sealfas G-P-M 35-00Q and 45-00Q can be supplied to meet the stress corrosion and chemical analysis requirements of MIL-I-24244C or nuclear regulatory guide 1.36 on special order.
Sealfas G-P-M Mastic meets requirements for LEED IEQ 4.2 Low- Emitting Materials, Paints and Coatings. VOC (35-00): 37 g/l, less water and exempt solvents. VOC (45-00): 36 g/l, less water and exempt solvents.
Sealfas G-P-M Mastic contains no asbestos, lead, mercury, or mercury compounds.
Store and apply between 40°F (4°C) and 100°F (38°C), protect from freezing until dry. To resist rain washoff, allow at least 16 hours drying time above 40° F (4°C), with a relative humidity of 50%. Higher humidity at lower temperatures may retard drying. Always test paper facings for acceptable adhesion before using. Select WEATHERITETM Mastics for use over foil facings. Outdoor horizontal surfaces must always drain completely. A pitch of at least 1/2 inch per foot (4 cm/m) is recommended. Always select 35-00 or 45-00 white for use over polystyrene insulation installed outdoors. 0809
35-00 White 45-00 35-01 Aluminum Gray 45-01 Other colors available on special order
AVERAGE WEIGHT/U.S. GALLON (FSTM 3):
11.2 lbs (1.34 kg/l)
AVERAGE NON-VOLATILE (FSTM 9A):
63-65% by volume (73-75% by weight)
(Subject to the nature of material coated). Wet coverages shown below are for smooth non-porous surfaces. Porous or rough surfaces will require higher gallonage to attain required dry thickness.
0.062 inch (1.6 mm)
EQUIVALENT WET COVERAGE:
0.096 inch (2.4 mm) 6 gal/ 100 sq. ft. (2.4 l/m2 )
DRYING TIME (ASTM D 1640):
Set to Touch: 3 hours
Dry Through: 16 hours
SERVICE TEMPERATURE LIMITS (FSTM 70):
(Temperature at coated surface) -20°F to 200°F (-29°C to 93°C)
WATER VAPOR PERMEANCE (ASTM F 1249):
3.0 perms (2.0 metric perms) at 1/16 inch (1.6 mm) dry film thickness; decreasing on aging to 1.0 perm (0.7 metric perm)
WET FLAMMABILITY (ASTM D 3278):
No flash to boiling, 205°F (96° C)
SURFACE BURNING CHARACTERISTICS (ASTM E 84):
Flame Spread: 20
Smoke Developed: 25-50
Tested at coverage rate of 16.7 sq. ft. per gallon (6 gal/100 sq. ft., 2.4 l/m2 ).
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 Specialty Construction Brands, Inc.
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