18 Perfectseal Flashing Cement (Asbestos Free)
18 Perfectseal Flashing Cements (Asbestos Free)
KARNAK #18 Perfectseal Flashing Cement is a scientifically compounded composition of selected asphalts, mineral fibers, and refined solvents that are manufactured to a heavy consistency. Designed for application by trowel #18 is a durable cement with excellent adhesion and weathering characteristics.
This product when applied dries to a tough, flexible, water resistant and corrosion proof coating that provides excellent performance over a wide range of temperature and weather conditions. Available in three consistencies: Summer, Semi and Winter.
- VOC: 204 g/L
- D-4586 Type I Class I
- SS-C-153 Type I (AF)
- 3-6 Gallons per 100sf**
This is intended as a general guideline only, coverage can vary based on many factors.
KARNAK 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.
1. Consistency: A smooth, heavy trowel consistency which will readily spread on and adhere to surfaces without sagging.
2. Character of Dried Film: Uniform, excellent adhesion to masonry, steel, cured concrete, shingles, asphalt roofing and a variety of other surfaces.
3. Has excellent resistance to flow at high temperatures when used on a vertical surface
Preparation & Application
All surfaces should be clean, dry and free from oil or grease, dust, dirt, loose paint or other foreign matter prior to application.
Spread KARNAK #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 KARNAK #18 Perfectseal Roof Cement over the damaged area, then embed KARNAK Cotton, Glass or Poly-Mat Membrane reinforcement and then apply another coat of KARNAK #18 Perfectseal Roof Cement over the entire patch.
Recognized by professional roofing contractors as the best quality product in the market.