Advanced phosphate liquid replaces the hot tank phosphating process to provide protection against rust and corrosion, plus a superior crystalline bonding surface for Brownells GUN-KOTE finishes. K-PHOS chemically etches and instantly seals the metal surface to prevent rust prior to painting. Application requires surfaces to be completely degreased using Brownells TCE or KG3 Solvent Degreaser. Machined surfaces can be abrasive blasted for maximum adhesion. Easy application: brush on, dip the parts, or spray on with air brush. Does not require thinning, and dries in 10 to 15 minutes for fast turn-around. Highly recommended for use with GUN-KOTE on alloy steel, stainless steel, aluminum, and sound quality nickel and chrome plating. Meets MIL-C-490A and TT-C-490 specifications. SPECS: Liquid, clear. 8 fl. oz. (237 mL) or 16 fl. oz. (473 mL) plastic bottle.