Zinsser Bin 1‑2‑3 Primer Sealer Stain Blocker

The Zinsser Bin 1‑2‑3 is a versatile, quick‑drying primer‑sealer‑stain blocker formulated for both interior and exterior use on a wide variety of surfaces. It provides a superb foundation for finishing paint by sealing porous surfaces, blocking stains, and promoting strong adhesion for a durable topcoat.

Key Features

• Interior and exterior application
• Quick‑drying formulation
• High hiding power for effective stain blocking
• Seals porous surfaces to prevent excessive topcoat absorption and reduce final finish costs
• Excellent adhesion to a diverse range of substrates, including wood, metal, plaster, brick, stone, concrete, and previously painted surfaces
• Ideal for blocking water stains, tannin bleed, rust, grease, and smoke damage
• Water‑based formula for easy clean‑up with soap and water

Applications

Use Zinsser Bin 1‑2‑3 on dry, sound surfaces prior to applying interior or exterior paint. It is particularly effective on problem surfaces where adhesion or bleed‑through is a concern. Perfect for preparing furniture, walls, cabinets, doors, trim, masonry, and metalwork. Apply with a brush, roller, or pad. Ensure surfaces are clean, dry, and free from loose material before application.