Bona R778 is a two-component polyurethane parquet adhesive according to EN 14293 (hard). It does not contain water or organic solvents. The adhesive hardens by a chemical reaction without shrinking. R778 is especially suitable for timbers extremely sensitive to swelling (moisture) and for low / non-absorbent substrates.
• Water and solvent free • No swelling of the wood • Excellent adhesion to almost all substrates and timber materials • Firm texture – retains trowel pattern • Long open time