Products / Karnak 180 Karna-Sil Epoxy Primer

Karnak 180 Karna-Sil Epoxy Primer is a two-part, water-based epoxy primer mixed 1 to 1. The maker lists it to prime built-up, modified bitumen, concrete, metal, masonry, TPO, PVC, Hypalon and EPDM surfaces before Karnak silicone coatings, and states it is not needed over existing silicone-coated SPF roofs. Part A and Part B are sold separately in 5 gallon pails.