BONA R850 Flexible elastic single-component silane adhesive

Product Information

R850 is an elastic 1-Component silane based adhesive for parquet floors. The hardened adhesive is able to withold thrust during expansion. This flexibe MS polymer based adhesive is suitable for Installing timber flooring to:

Concrete floors  / sand and cement screeds

Floors levelled with levelling compounds (atleast 2mm  thick) resistant against plasticizer migration.

Chipboard (V100)

Ceramic / Porcelain tiles

Metals, other dry and sound sub floors.

The adhesive hardens by a chemical reaction with moisture.

1. 1- Component, easy to handle.

2. Soft Elastic

3. Water & Solvent free, nearly no swelling of wood.

4. Good adhesion to almost all substrates and timber materials. Splashed materials can be easily removed.

5. Firm texture -retains trowel pattern.

COVERAGE: One KG normally covers 1 square meter on a level floor. The substrate must in general be even, totally dry, clean, free from cracks and physically sound. If the subfloor is problematic(eg weak surface, missing damp proof membrane) use R410.  A broadcasting of sand into R410 can be omitted, if the surface of R410 stays clean and the parquet is glued with R850 within 24hours.The parquet should be laid on evenly spread adhesive using a notched trowel and pressed down for aaprox 20 minutes.

After 24 to 48 hours it is possible to apply load or stress to the floor. Sanding and the application of a surface coating may be carried out after 2 to 4 days depending on the type of parquet, absorbency of the substrate and room climate.

For further details ; http://www.bona.com/en-gb/UK/Products/Professional_Product_Range/Fastening/Adhesives/Bona_R850/

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