Bona R540 is a multipurpose primer for both absorbent and non-absorbent sub-floors. It can be used for damp-proofing concrete or cementitious sub-floors with up to 4 CM%. It is compatible with Bona saline and polyurethane adhesives. Coverage: Approx. 100-150g/m² (primer) / Approx.250-350g/m² (damp proofing up to 4CM/% or 85% rH) Drying time: Between 1and 24 hours, depending on the following adhesive system Application: Roller / Brush / Trowel
