Polychem 7535-PP-67 Alkyd resin OPC Polymers Alkyd Resins >> Short-oil PnP and s-butanol POLYCHEM 7535-PP-67 is a water dispersible oxidizing alkyd developed for fast air dry or bake finishes with a good balance of film properties, including excellent corrosion resistance. This is the HAP-free version of Polychem 7535-70 and supplied @ lower solids for easier handling than 7535-PP-70. This product is HAP-free. Air Dry - Force Dry - Bake/ Primers/ Industrial Finishes Tofa HAP-free, water reducible oxidizing alkyd resin. Used for fast air dry, force dry and bake finishes, primers and industrial finishes. Offers good balance of film properties and very good corrosion resistance.