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PIANOLAC® STAIN BLOCKER
Anti-Blotch Pre-Sealer

  • Prevents stain blotching on soft wood veneer (cherry, mahogany).
  • Can be used under PianoLac sealer and topcoat.
  • Non grain raising.
  • Dries in minutes.
  • Totally transparent.

Stain blocker is applied after sanding and filling and before staining. It prevents the penetration of stain into the soft absorbent areas of wood grain that cause blotching. Two or three thin coats followed by a light sanding with #320 is all that’s needed. Stain can then be applied right over the sanded surface.