Master Brand 20041 Primer Sealer Stain Blocker 1 Gal

Product Description

The MASTER BRAND 20041 is a water-based, multi-surface primer, sealer, and stain blocker formulated for both interior and exterior applications. It dries fast, carries very mild odor, and delivers strong adhesion across a wide range of substrates. The 20041 blocks medium stains including minor water stains, rust, grease, ink, pencil, and felt marker. Enhanced hiding helps reduce the number of finish coats required when changing colors. Sold as a 1-gallon unit weighing 11.875 pounds, it is suitable for professional painters, contractors, and trade professionals handling surface prep on residential and commercial projects.

This primer is designed for use on interior and exterior surfaces including woodwork, drywall, plaster, paneling, masonry, brick, painted metal, and properly prepared glossy surfaces. It can be applied under or over water-based or oil-based paints, making it a flexible choice for a wide range of coating systems. It is not recommended for use on flooring surfaces. The 20041 is well-suited to surface prep work on new construction, repaints, and restoration projects where stain blocking and adhesion to varied substrates are required.

Key Features

• Water-based formula with very mild odor and fast dry time
• Blocks medium stains including rust, grease, ink, pencil, and felt marker
• Enhanced hiding reduces finish coats needed when changing colors
• Bonds to woodwork, drywall, plaster, paneling, masonry, brick, and painted metal
• Compatible with both water-based and oil-based topcoats
• Suitable for interior and exterior applications

Compatibility

Designed for use on interior and exterior surfaces including woodwork, drywall, plaster, paneling, masonry, brick, painted metal, and properly prepared glossy surfaces. Not recommended on flooring. Compatible as a base under water-based or oil-based paints.

Installation Notes

Application should be performed by qualified painting contractors or surface preparation professionals. Ensure the substrate is clean, dry, and free of loose material before applying. Follow all local building and environmental codes regarding VOC limits and ventilation requirements when working in enclosed spaces. Do not apply to flooring surfaces.

Technical Specifications

• Weight: 11.875 pounds
• Volume: 1 gallon
• Base: Water-based
• Application: Interior and Exterior
• UPC: 00051652200010
• Unit of Measure: Each

Standard Information

• Brand: MASTER BRAND
• Manufacturer Part Number: 20041