
Bona R540
Key benefits
- Moisture barrier up to 5 CM-% or 95 % RH
- Multipurpose usage
- Easy to apply
- High penetration
- Reinforcement properties
Information
1K polyurethane primer/damp-proof membrane for absorbent and non-absorbent sub-floors.
Bona R540 is a reactive 1-component polyurethane primer, used on absorbent and non-absorbent sub floors before the use of Bona silane adhesives. The product can also be used for damp proofing cement screeds and concrete floors up to 5 CM-% or 95 % RH. Furthermore, it can be used to reinforce slightly weak subfloors. As of 24 August 2023, adequate training is required before industrial or professional use of this product. Further information available at www.feica.eu/PUinfo or www.safeusediisocyanates.eu
Base: 1-comp PU Drying time: 6-24 hrs, depending on type of adhesive Tools of application: Stainless steel trowel, Bona Microfibre roller (5mm pile), brush

