top of page
Zinsser Cover Stain Primer Sealer 1L

Zinsser Cover Stain Primer Sealer 1L




An all-purpose solvent-based, stain-killing, primer-sealer. Ideal for interior and exterior applications. Recoat in only two hours. May be used under any solvent-based or water-based topcoat. Up to 9.8m2 coverage per litre on most surfaces.


Product Overview

Cover Stain® is the only interior / exterior primer, sealer, stain sealer and bond coat that dries for recoat in only two hours.

On interior surfaces, Cover Stain® dries quickly and has great 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 topcoated 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 paneling and trim, where few oil-based primers can succeed. Cover Stain® resists cracking and peeling and is compatible with all decorative top coats.




Key Features & Benefits


  • Tintable to most pastel, mid-tone and deep-tone shades
  • Interior and exterior
  • Sticks to all surfaces without sanding
  • Seals water, smoke and nicotine stains
  • Our best exterior wood sealer
  • Blocks cedar and redwood bleed
  • Touch dry in 35 minutes
  • Recoatable in 2 hours
  • Also available: Cover Stain® Deep Tint Base



Application Information


9.8m2 per Litre

Touch Dry

35 minutes

Full Cure

4 - 7 days


2 hours

  • Product Information

    Rust-Oleum Universal Stain Block Primer is designed to block difficult stains like nicotine and tannin bleed, prior to the application of Rust-Oleum Universal All-Surface Paint. This is a brush/roller/spray-applied, single-component, solvent-borne coating, intended for use as a primer/coating for stained walls and ceilings.

    Rust-Oleum Universal Stain Block Primer has an advanced formula for use on interior and exterior surfaces, covering common stains, including water, nicotine, ink, graffiti, rust, smoke stains and much more. It can be applied to wood, metal, plastics, ceramics and more. Please refer to the product data sheet for full application and substrate information.

bottom of page