CHEMICAL RESISTANCE:

Acids Excellent
Alkaline Excellent
Salts Excellently – no mixing required

ASTM D-4479 Type I

SSA-694d

VOC Content: 250 g/L MAX

83 Fibered Dampproofing is designed to dampproof masonry and concrete exterior surfaces below grade and interior surfaces above grade. This product is also suitable as a general protective coating for wood, steel and for all backup materials for masonry such as stone, brick and concrete.

Weight per Gallon: 8.28 lbs.
Solids by Weight: 74% Nominal
Solids by Volume: 68% Nominal
Color: Black
Permeability: .25 perms
Cure Time: 24 to 48 hours @ 77°F @ 50% Relative Humidity
Application: Brush or Spray
Application Temp.: 40°F to 120°F
Service Temperature Range: 15°F to 180°F

SURFACE PREPARATION:
Surfaces must be clean, dry and free from oil, grease, release agents, laitance, dirt, dust and debris. All cracks and pin holes should be repaired and filled with 86 Trowel Mastic prior to coating. If the surface is very porous, it is recommended that 108 Asphalt Primer be utilized to provide a firm film base prior to coating with 83 Fibered Dampproofing.

BRUSH APPLICATION:
Apply with a wide, fiber brush at the rate of 4 gallons per 100 sq. ft.

SPRAY APPLICATION:
Utilize a standard heavy duty airless spray pump using heavy duty guns and nozzles. Equipment manufacturers should be consulted for more complete information. Apply at the rate of 4 gallons per 100 sq. ft.

COVERAGE RATE:
Apply at the rate of 4 gallons per 100 square feet.
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‍CHEMICAL RESISTANCE:
‍Acids: Excellent
Alkaline: Excellent
Salts: Excellent

BACKFILLING:
Allow the film to cure for at least 24 to 48 hours prior to backfilling. Care should be taken during filling not to puncture or damage the coating. A protection board is highly recommended to protect the film prior to backfilling. Backfilling should take place within 7 days in areas where hydrostatic pressure is known to occur. Contact KARNAK for alternate product suggestions.

NOTE: Allow the film to cure for at least 24 to 48 hours prior to backfilling. Care should be taken during filling not to puncture or damage the coating. A protection board is highly recommended to protect the film prior to backfilling. Backfilling should take place within 7 days in areas where hydrostatic pressure is known to occur. Contact KARNAK Corporation for alternate product suggestions.

Do not use near open flame. Avoid breathing solvent fumes and prolonged contact with skin. Do not take internally. If swallowed, do not induce vomiting. Call a physician immediately. Keep out of reach of children. Keep container covered when not in use. Do not thin. Dispose of in an environmentally safe manner. Cover air intakes during application and while drying. Exterior use only.

CARE OF TOOLS:
Tools and other equipment should be thoroughly cleaned with mineral spirits, taking necessary precautions when handling combustible materials.

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