Chempol 818-0644 Urethane alkyd CCP Online Alkyd Resins >> Modified >> Urethane INKS >> Varnishes / Over print varnish Wood & Furniture Coatings >> Sealer / Filler mineral spirits Chempol® 818-0644 is light stable urethane polymer. It is used in wood- clear varnish, pigmented wood finishes and wood sealer. It possesses abrasion resistance, good adhesion, fast through dry, good exterior durability, good color retention. Light stable urethane alkyd. Used in wood- clear varnish, pigmented wood finishes and wood sealer. Offers good abrasion resistance and adhesion. Provides fast through dry. Possesses good exterior durability. Exhibits good color retention.