Stain Blocker by General Finishes

from $67.50
Free Delivery
Quebec, Ontario · More info
This product is sensitive to freezing.

Stain Blocker is General Finishes' revolutionary water-based stain blocking primer for interior projects. Stain Blocker can be used to protect pigmented finishes from stain, dye and wood tannin bleed-through.

Use over an existing finish, raw wood or MDF as a base coat for light-colored General Finishes Milk Paint and Pigmented Polys.

General Finishes Stain Blocker is designed for effectiveness, not price point. This primer has a sophisticated resin system and an atypical formulation. Use on pieces where you are concerned about bleed-through.

Directions for Use

Surface Preparation

Always ensure the surface is clean of contaminants and dust. Sanding any surface too smoothly can reduce adhesion and create application issues like orange peel.

Raw Wood

Sand with no finer than 220 grit.

Pre-finished Wood

Clean using 50/50 mix of denatured alcohol and water with maroon non-woven pad. Sand with fine (220-320) foam sanding pad or maroon non-woven pad.

Other Substrates

Always test first.

Sanding Between Coats

Using fine (220-320) foam sanding pad or gray non-woven pad.


946 ml $67.50 In stock
3.78 L $180.00 In stock


Classification Wood Paints
Brand General Finishes
  • 946 ml
  • 3.78 L
Sold Since November 16, 2020
Drying Time
  • Touch: 1+ hr
  • Recoat: 2+ hr

125-150 sq ft / L


33 g / L





Number of Coats

2 coats

Application Method

Brush, roller, spray. (See TDS)

Similar Products

Complementary Products


There is currently no review for this product. Be the first to submit one!


Terms of Sales · Privacy · En français