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Bona R820 Engineered Wood Floor Adhesive


Bona R820 is a one-component, silane-based wood flooring adhesive that offers adhesion to a variety of surfaces. The initial bonding strength and ridge stability makes it particularly suitable for engineered flooring installations with low movement. The adhesive offers a long open time of up to 90 minutes and allows for easy trowel application. GREENGUARD Certified for indoor air quality.

  • Easy to spread
  • Long open time of up to 90 minutes
  • Suitable for engineered floors
  • GREENGUARD Certified
  • Concrete
  • Plywood
  • Warmboard®
  • Cork
  • Particle or OSB
  • Stone
  • Ceramic
  • Terrazzo
  • Radiant heat flooring (refer to manufacturer’s recommended installation instructions)
  • Dry, above-grade gypsum underlayment
  • Recycled-rubber underlayment
  • Bona 1500G Trowel(5/16" x 5/16" x 7/16")
  • Engineered flooring only, up to 10" wide and 5/8" thick
  • Coverage: up to 50 sq. ft./gallon
  • Moisture protection: ≤ 6 lbs / 80% RH
  • Bona Engineered Flooring (EF) Trowel (3/16" x 7/32" x 25/64" V‑notch)
  • Engineered flooring only Up to 7.5" wide and 5/8" thick
  • Coverage: up to 75 sq. ft./gallon
  • Moisture protection: ≤ 6 lbs / 80% RH (trowel only)
  • Bona 1000F Trowel (5/32" x 5/32" x 5/32" V‑notch)
  • Engineered flooring up to 5” width and ½” thick Acoustical underlayment pad
  • Coverage: up to 85 sq. ft./gallon
  • Moisture protection: ≤ 6 lbs / 80% RH (trowel only)
  • Bona Engineered Flooring Plus (EFP) Trowel (5/16" x 5/16" x 3/4" V‑notch)
  • Engineered flooring only Up to 7.5" wide and 5/8" thick
  • Coverage: up to 70 sq. ft./gallon
  • Moisture protection: ≤ 3 lbs / 75% RH (trowel only)


  • Coverage depends on board width, subfloor flatness, trowel angle & pressure
  • Two coats of a moisture barrier provide additional protection
  • Over radiant heat: maximum moisture protection is 6 lbs / 80% RH

3lbs per Each

44 per Pallet