Zinsser Cover Stain is an interior / exterior primer, sealer, stain blocker and bond coat that dries for recoat in just 2 hours.  

It is a highly recommended product for covering all types of stains quickly and permanently, especially effective on nicotine stains. 

On interior surfaces, Cover Stain dries quickly and has excellent hiding power providing outstanding stain killing and enamel undercoating performance. Stains of all kinds are permanently sealed so topcoats are blemish free.

Cover Stain is especially effective on nicotine and water stains. New wood trim can be primed, sanded and top coated the same day, saving time and money.

On exterior surfaces, Cover Stain has a unique formulation that delivers full penetration and flexibility on all surfaces, especially dimensionally unstable wood panelling and trim, where few oil-based primers can succeed. Cover Stain resists cracking and peeling and is compatible with all decorative top coats.