Our flooring accessories are available for pick up from our Blackburn showroom. Delivery is available within 5km of Blackburn.
For large quantities or interstate delivery please contact us.
What is Bona R820 Adhesive?
Bona R820 is a one component silane-based adhesive for timber floors, including solid, overlay, parquet, blocks, and engineered floors.
Bona Silane adhesives are so easy and reliable that you will never have to worry about an installation again. They ensure excellent adhesion to the substrate and help prevent moisture transfer.
Bona R410 or R540 moisture barrier can be used with R820 where a moisture barrier system is required.
R820 withstands the thrust created during expansion of a timber floor, like conventional adhesives, whilst having a low resistance against shrinkage. This means that tension between the timber and the substrate, to which the timber floor is fixed, is reduced giving a more stable floor.
Bona have been working with timber floor adhesive systems for over 50 years and are a major worldwide supplier of reactive silane adhesives. These adhesives contain no solvent or water and react with moisture taken from the timber, substrate or the air to cure. Unlike solvent based polyurethane adhesives they contain no isocyanate compounds. Over 40 million m² of flooring has been laid using the Bona Silane adhesive system.
About Bona R820
- One component
- Can be used as a 2 component system with shorter setting times
- Water and solvent free - Zero VOC's
- Silane technology - Isocyanate free
- Fast setting with rapid initial bonding strength
- Easy clean up, will not stain floors or hands
- Excellent rib stability
- Will not mark pre finished floors
- Classified as non-hazardous
- Colour - Beige/Light Brown
Where can Bona R820 be used?
- Adheres to all wood type flooring - solid timber, engineered timber and parquetry
- Suitable substrates include: Cementitious screed / Concrete, floors levelled with levelling compounds (min. 2 mm thick), board floors i.e. plywood, chipboard, etc.
- The substrate must be even, dry to the touch, clean, free from cracks and physically sound. The surface should also be slightly textured.
Technical Specifications
- Available in 15kg tub
- Coverage is 15 - 17.5 m2 depending upon the type of flooring and installation method
- Density: 1.68 g / cm³
- Open time: Approx. 50 - 60 minutes 20° C / 60% RH
- Sanding: Allow a minimum 12 hours at 20° C / 60% RH
- Suface treatment: Up to 2 days depending on the style of flooring, and site conditions. N.B. Low temperatures and / or high humidity will extend the drying / curing time
- Application tools: Notched floor trowel / Bona Trowel Plus
- Application rate: Standard installation: 1 – 1.25 KG per m² OR Installation & Moisture barrier: 2 – 2.5 KG per m²
- Flash point: Non-flammable
- Shelf life: Tub - 12 months