NC Paints

Newly formulated Enduro Stain Blocker is General Finishes' revolutionary water-based stain-blocking primer that now provides improved sandability and advanced performance for interior AND exterior projects. It can protect pigmented finishes from stains, dyes, and wood tannin bleed-through. Brush, roll, or spray over an existing finish, raw wood, or MDF.  General Finishes Stain Blocker is designed for effectiveness, not price point. This primer has a sophisticated resin system and an atypical formulation. Use it on pieces where you are concerned about bleed-through. GF also offers tintable physical primers, White Under Coat and Deep Base Primer. Meets KCMA and AWI System 2 standards.