Bona QUANTUM® R851 – High-Strength, Easy-to-Use Silane-Based Wood Flooring Adhesive

Looking for an adhesive that combines professional-grade strength with easy handling? Bona QUANTUM® R851 is a one-component, silane-based wood floor adhesive designed to make installations smoother, faster, and stronger. With exceptional "green grab" strength and elastomeric flexibility, it moves naturally with the floor as it expands and contracts—perfect for both solid and engineered hardwood.

Ideal for residential and commercial jobs, it’s also GREENGUARD Gold Certified for better indoor air quality and contains zero VOCs.

Why Choose Bona QUANTUM® R851?

• Unmatched green grab strength—floors stay put during installation

• Zero VOCs and non-offensive odor for safer, cleaner projects

• Exceptional ridge stability for maximum adhesive transfer

• Water-resistant protection—moisture protection up to 18 lbs MVER or 95% RH

• Easy cleanup—won't harm prefinished floors or stain hands

Coverage:

• Using a standard Bona trowel, you can achieve up to 35 sq. ft. per gallon depending on substrate and trowel size.

Cure Times:

• Light foot traffic: 8–10 hours

• Furniture/fixtures placement: 12–24 hours

• Unfinished floor sanding: after 24 hours

Apply with a smooth, semicircular trowel motion, and for higher moisture scenarios, use the back trowel method for added protection.

Make your floor installations easier, stronger, and cleaner—choose Bona QUANTUM® R851 for top-tier performance!