Bona R540

Bona R540 Primer


Reg: $ / box/unit

The Safe Way to Ease Moisture Issues Quickly!

Bona R540 Moisture Barrier/Primer is a one-component roll-on moisture membrane specially designed to mitigate vapor transmission on absorbent and non-absorbent subfloors. The polyurethane reactive primer is compatible with the entire Bona Adhesive System.

Key Benefits:

  • Mitigates potential moisture issues, like cupping, in new and existing construction
  • Substitute for felt paper installed over plywood sub-floors **
  • Increases adhesion over sealed plywood floors
  • Can be used as a sealer for plywood subfloors up to 20% MC
  • Can be used for damp proofing concrete subfloors up to 95% RH & 18 lbs*
  • Dries fast allowing nail-down installation immediately

Specifications: Size – 1.32 US gallon (5 L); drying time – approx. 1-16 hours; colour – translucent brown; maximum VOC content – less than 75 g/L.

Technical Data Sheet