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Multipurpose PU primer/damp-proof membrane for both absorbent and non-absorbent subfloors. Can be used for damp-proofing concrete or cementitious subfloors with up to 4 CM% in humidity. Compatible with Bona’s Silane and PU adhesives.
Use just one coat of Bona R540 over cement with one coat of Bona adhesive (R851 or R859) you will receive 18 lbs. and 95% protection!!!
Key Benefits:
- Moisture barrier that handles up to 4.0 CM/%
- Excellent penetration properties
- 1-component and ready-to-use
- Slightly strengthening effect on subfloors