General purpose roof repair cement

Heavy trowel consistency

Excellent resistance to flow on vertical surfaces

D-4586 Type I Class I

SS-C-153 Type I (AF)

VOC Content: 250 g/L MAX

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18 Perfectseal Flashing Cement is a general-purpose cement for repairing leaks in shingles, concrete, metal or asphalt roofs, flashings on walls, chimneys, flues, down- spouts and cornices. Excellent for sealing cracks in concrete, brick, as a joint filler for pre-cast roof slabs and general-purpose use in maintenance of exposed buildings and structures.

Weight per Gallon: 7.66 lbs.
Solids by Weight: 76% Nominal
Solids by Volume: 73% Nominal
Color: Black
Application Temp.: 40°F to 120°F
Service Temp (Cured Film): 15°F to 180°F

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SURFACE PREPARATION:
All surfaces should be dry, clean and free from oil or grease, dust, dirt, loose paint or other foreign matter. 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:
Spread 18 Perfectseal Flashing Cement to an average thickness of 1/8” (approximately 8 gallons per square) and press tightly into joints, seams or cracks. To repair large cracks, breaks and blisters, spread 18 Perfectseal Flashing Cement over the damaged area then embed 34 Asphalt Saturated Cotton, 31 Fiberglass Membrane or 5540 Resat-Mat Polyester membrane reinforcement and then apply another layer of 18 Perfectseal Flashing Cement over the entire patch.

COVERAGE RATE:
Apply each application at an average thickness of 1/8” (8 gallons per 100 sq. ft.)

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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. Store in a heated room and 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.