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Stain Blocking Primer

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  • $ 109.90


  • General Finishes NEW water based white primer
  • 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 GF Milk Paints, Chalk Style Paints, & Pigmented Polys
  • WARNING: DO NOT MIX with any paint, stain or topcoat. Contamination from other finishes will cause product failure. Rinse all brushes/equipment with clean water.
  • Do not use General Finishes Brush & Gun Cleaner.


Size Name:Gallon GF Stain Blocker is designed for effectiveness, not price
point. A successful primer requires a sophisticated resin system and an
atypical formulation, which will result in a more expensive product. To
maximize GFSB's effectiveness, our chemists formulated this product with the
highest quality ingredients. Use ONLY for those pieces where you will really
care if there is bleed through. GFSB will work every time, not some of the
time. SURFACE PREPARATION: Existing Finishes (stain, lacquer, paint): Clean
and remove grime, grease or loose paint. Wash down extremely dirty surfaces
with a mix of 50/50 denatured alcohol and water or a sulfate-free commercial
cleaner. Remove any heavy buildup with a synthetic wool pad. Allow surface to
dry completely. Prep sand the surface with 220 grit sand paper and remove
dust. Raw Wood: Sand with wood grain. Prep sand with 120 then 220 grit
paper. Remove dust. APPLICATION: Stir thoroughly. It is essential to apply 2
coats. The first coat will absorb contaminents in the wood, causing a color
change during the first application, and the second will seal them. Brush or
Roller: Apply a uniform coat with a high quality synthetic blend brush or
short nap roller. Spray: Product is ready to spray from container and does not
require thinning. Strain material through fine mesh filter. Spray medium to
wet film 3-5 mil thick. Heavier coats will take longer to dry & cure. Spray
with compressed air, HVLP, or Air Assisted Airless. Fluid tip sizes:
Compressed Air- .040, HVLP -.043-.061 (1.1mm-1.5mm), AAA -.009-.013. Use
medium size air caps.