Description
Roberts R6355 is a high solids, water-based one-part crosslinking PVA meeting the D3/BS EN204 specification, designed to bond a wide range of timbers, MDF, particle board and ply with rapid, high strength bonds resistant to heat and moisture. That D3 water resistance rating is what separates it from a standard PVA — it holds up to occasional short-term water exposure and elevated humidity rather than softening the way a basic interior-grade PVA can.
It’s an ideal product for bonding tongue and groove solid timber and laminated flooring, where a crosslinking chemistry gives genuinely stronger, more durable joints than a non-crosslinking PVA once fully cured. Open time can run up to 20 minutes at 20°C depending on temperature, humidity, timber type and the amount of adhesive applied, giving a reasonable working window to position and clamp assemblies before the adhesive begins to set.
Maximum bond strength is reached within 48 hours, with the adhesive itself fully cured in 5-7 days. Assemblies are best left overnight before moving, and any squeeze-out should be wiped away immediately with a dry or slightly damp cloth, since the crosslinking chemistry that gives it strength also makes cured adhesive genuinely harder to remove than a standard PVA.
Because it’s a crosslinking formula rather than a standard PVA, R6355 is genuinely better suited to structural flooring joints than a basic woodworking glue, where the combination of heat resistance and moisture tolerance matters over the working life of an installed timber floor. That extra durability is exactly why it’s specified for tongue and groove flooring work rather than general cabinetry or furniture assembly.
Technical Specifications
| Base | Water-based synthetic emulsion |
|---|---|
| Solids | 50% |
| Open time (at 20°C) | Up to 20 minutes |
| Maximum bond strength | Within 48 hours |
| Full cure | 5-7 days |
| Packaging | 500ml, 5L, 20L containers |
| Shelf life | 12 months, unopened original packaging |
Where to Use
- Tongue and groove solid timber and laminated flooring
- Bonding MDF, particle board and ply
- Applications requiring heat and moisture resistant joints
How to Apply
- Prepare the surfaces — sound, clean, dry and free of oil, wax and dust.
- Apply the adhesive — by squeeze bottle, brush or roller.
- Assemble within the open time — up to 20 minutes at 20°C.
- Clamp or press firmly — until the adhesive has set.
- Wipe off squeeze-out immediately — with a dry or slightly damp cloth.
Important Notes
- Classified as non-dangerous goods under WHS Regulations and the ADG Code.
- Leave assemblies overnight before moving for best results.
- Clean tools immediately after use with warm soapy water.
