J & S Supply is a prominent distributor of Karnak 670 Karna-Sil Silicone Coating serving New York, NYC, Brooklyn, Queens, Long Island, Westchester, New Jersey, and Connecticut. 670 Karna-Sil is a white, Low-VOC single component, moisture curing silicone coating that produces a durable elastic coating with exceptional weathering and water resistance characteristics. 670 Karna-Sil is available in 5 gallon buckets.

For Newly Sprayed Polyurethane Foam or Previously Coated Silicone roofs apply 670 Karna-Sil directly over newly sprayed polyurethane foam, or pressure-washed, clean and dry Silicone coated roofs. For Metal, BUR (Built-Up), Modified Bitumen, Concrete, Masonry, TPO, PVC, Hypalon, and EPDM roofs pressure-wash roof, and let dry prior to application. Apply 180 Karna-Sil Epoxy Primer and allow full cure before applying 670 Karna-Sil. 670 Karna-Sil may be used on vertical as well as horizontal applications. All surfaces must have positive drainage.

Karnak 670 Karna-Sil Silicone Coating
Product Data Sheet

Our prime location in Long Island City is close to every major thoroughfare in the Metropolitan New York and New Jersey area, ensuring our fleet of specialized equipment can deliver fast.


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