Bona R590 is a premium, one-component polyurethane moisture barrier that also functions as a primer and bonding layer for wood floor installations. Designed for professional use, it provides excellent moisture protection while simultaneously improving adhesion between the subfloor and Bona adhesive systems. This versatile product creates a strong, elastic and moisture-resistant membrane that helps control residual moisture in mineral substrates while reinforcing weak surfaces. Bona R590 is ideal for demanding installations where both moisture control and strong bonding performance are required. Key Features 1-component PU moisture barrier (DPM) Acts as primer bonding layer in one system Protects against residual moisture in concrete and screeds Excellent adhesion to mineral and prepared substrates Elastic and crack-bridging membrane Strengthens weak or dusty subfloors Ready to use – no mixing required Compatible with Bona adhesives Recommended Uses Moisture protection prior to wood floor installation Subfloors requiring both priming and bonding improvement Concrete, cement screeds and mineral substrates Professional parquet and engineered flooring installation Application Instructions Ensure substrate is clean, dry, solid and free from contaminants. Apply evenly using a roller or suitable applicator. Apply 1–2 coats depending on substrate condition and moisture level. Allow proper curing before applying adhesive or flooring. Follow Bona system guidelines for best performance. Drying Time Recoating / second coatApprox. 1–2 hoursReady for adhesiveApprox. 12–24 hours Coverage Approx. 100–150 g/m² per coat, depending on surface and application method. Technical Data BrandBonaProductBona R590Type1-component PU moisture barrier & primerPackaging8 kgApplication rate100–150 g/m²FunctionMoisture barrier primer bonding layerSubstratesConcrete, screeds, mineral floorsCompatibilityBona adhesivesSKUUFSBONAR5908KG FAQs Is Bona R590 just a moisture barrier?No — it also acts as a primer and bonding layer, making it more versatile than standard DPMs. How is it different from R540?R590 adds bonding and priming properties, while R540 is mainly a moisture barrier. Can it be used before adhesives?Yes — it is designed to improve adhesion for Bona adhesive systems. Is it suitable for difficult subfloors?Yes — it strengthens weak or dusty surfaces and improves bonding performance.
