SURFACE PREPARATION:
Surfaces must be clean, dry and free from oil, grease, release agents, laitance, dirt, dust and debris. All cracks and holes should be filled with 86 Fibered Trowel Mastic prior to surface coating. If the surface is porous, it is recommended that 108 Asphalt Primer be utilized to provide a firm film base prior to application of 86 Fibered Trowel Mastic. Recommended application temperature is 40°F to 120°F. If applying at temperatures lower than 40°F, the substrate must be free of moisture and/or ice crystals. APPLICATION: 86 Fibered Trowel Mastic is easily applied with a regular trowel. Using even strokes, a smooth uniform film can be obtained and provide adequate protection. Coating should be continuous and free of pinholes or holidays. Allow the film to cure for at least 24 to 48 hours prior to backfilling. Cure time can be affected by the film thickness and the temperature. Care should be taken during backfilling, so as not to puncture or damage the coating. A protection board is highly recommended to protect the film when backfilling. Backfilling should take place within 7 days.
COVERAGE RATE:
A recommended coverage rate of 5 to 6 gallons per 100 sq. ft. (80-96 wet mils) is desired for adequate protection. Application rates can vary depending upon the surface to be covered.
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.
