Karnak #197 Karnastatic Cement dries to a firm and hard finish. Because of its rapid curing action, Karnak #197 Karnastatic Cement is dry to the touch in just a few hours. Karnak #197 Karnastatic "Slaters" Cement is prepared from a blend of selected asphalts, special additives, mineral fibers and refined solvents. This composition is then passed through a high speed mixer which results in a smooth trowel-like-consistency in the finished product.