Bona R820, 15 KG

Bona R820 – Silane-Reactive 1-Component Adhesive – 15kg

Bona R820 is a single-component silane-based adhesive with innovative technology, specifically designed for the installation of engineered wood flooring and solid wood. This product offers excellent adhesion, stability, and high moisture resistance, and is compatible with underfloor radiant heating systems.

Main Advantages

• Fast and strong adhesion ("green-grab") on multiple types of substrates and wood
• "Hard-elastic" behavior (EN ISO 17178): flexible yet resistant
• Extended working time (open time: approx. 60–90 min)
• Stability of the adhesive bead after application
• Very low emissions (EMICODE EC1 Plus, A+ rating)
• Allows sanding and finishing after 12–24 hours; light use in 4–6 hours; full cure in 24 hours

Technical Data

• Type: Modified silane adhesive, 1 component
• Color: beige / light brown
• Viscosity: consistent for application with notched trowel
• Coverage: 1–1.5 kg/m² (single layer); up to 1.25 kg/m² for multi-layer floors; higher rates for mosaic
• Safe application time: 60–90 minutes (20 °C / 50–60% RH)
• Time until walking on the floor: 4–6 h; sanding: after 12 h; full cure in 24 h
• Packaging: 6 kg tube (3 units per box)

Recommended Applications

Ideal for professional installation of:

• Engineered, multi-layer, mosaic, and solid wood floors
• Substrates such as concrete, self-leveling screed, OSB, particleboard, or plywood
• Floors with radiant heating
• Residential and commercial environments
• Systems requiring moisture resistance and good acoustic insulation

Usage Instructions

• Prepare substrates: dry, clean, level, and with slight texture.
• Apply with appropriate trowel (see coverage rates).
• Position pieces within working time, press to ensure full coverage.
• Clean any excess with cloth + acetone
• Sand and apply finish after 12–24 h

Bona R820 is the ideal choice for solid, secure, and durable installation of wood floors, ensuring stability, elasticity, and comfort in every project.