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Beoordeeld door Tom ReillySenior Editorial Reviewer — Roofing, Carpentry & General Contracting
Who to call · Elche

Tannin Bleed-Through Staining PaintElche, Valencian Community

Yellow or brown stains appear through freshly painted surfaces, especially over knots in wood, cedar, or redwood siding. Tannins are natural chemicals in wood that dissolve in moisture and migrate through standard latex paint. A professional painter can properly sand, apply a stain-blocking shellac or oil-based primer, and repaint the surface so the discoloration does not return.

Who to call

For this problem in Elche, call a: Schilder

Vind een Schilder in Elche

Symptoms to look for

  • Yellow or brown spots bleeding through white or light-colored paint within weeks of application
  • Dark rings forming around visible wood knots despite multiple coats of paint
  • Staining appears worse on rainy or humid days and seems to spread over time
  • Previous attempts to cover stains with additional latex paint coats have failed
  • Discoloration concentrated on cedar, redwood, or knotty pine surfaces

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