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.
