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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.

• Moisture barrier that handles up to 4.0 CM/%
• Excellent penetration properties
• 1-component and ready-to-use
• Slightly strengthening effect on subfloors