Everbond General Purpose PVA

For cabinetry, shopfitting, and joinery applications requiring a sandable, non-staining timber bond, Everbond General Purpose PVA provides a reliable joint that cures to a hard, translucent film. This synthetic resin adhesive is formulated for standard workshop assembly, laminating, and veneering where high moisture resistance is not a primary requirement.

How it works

Everbond General Purpose PVA cures through water dissipation and crosslinking under ambient conditions. The adhesive resists normal humidity cycles and inhibits the growth of mould, bacteria, and fungi. Full cure is achieved when the adhesive interphase reaches moisture equilibrium, which typically takes approximately seven days depending on timber density, moisture content, adhesive mass, and ambient conditions.

For specialized lines, water resistance can be increased and the cure accelerated by thermo-curing. This requires mixing Catalyst Number 1 at a rate of 1% w/w before hot pressing.

Numbers that matter

• 48/50% solids content: Provides a stable resin density to minimize excessive shrinkage during water dissipation.
• 80 to 140 g/m² spread rate: The required adhesive coverage for surface bonding applications to ensure complete wet-out without excessive squeeze-out.
• 160 to 180 g/m² spread rate: The required adhesive coverage for structural assembly bonding.
• 8°C minimum application temperature: The lowest allowable substrate and workshop temperature to ensure proper film formation and bonding.

Where to use it

• Assembly bonding: Standard dowel, carcass, and general timber joinery.
• Board joints and block bonding: Solid timber laminating and edge gluing.
• Laminating and veneering: Surface gluing of decorative papers, timber veneers, and high-pressure laminates (HPL) to particle board or solid timber.

Pressing times and thermo-curing

Minimum pressing times vary by application and heating method:

• Surface gluing of decorative papers: From 10 seconds.
• High frequency gluing (longitudinal heating): From 20 seconds.
• Surface gluing of high-pressure laminates in short-cycle presses (+70°C): From 60 seconds.
• Assembly bonding: 30 minutes under clamp pressure.
• Board joints and block bonding: 45 minutes under clamp pressure.

For hot-press thermo-curing (applicable for 1-2mm timber veneer to solid timber or particle board with 8-12% timber moisture), apply an adhesive spread rate of 150 to 200 g/m² and press at 4 to 5 kp/cm² for:

• 30 seconds at 80°C, or
• 30 seconds at 130°C.

Limitations

• Not waterproof: Do not use in external applications, wet areas, or areas subject to water immersion. It is suitable only for normal dry interior humidity cycles.
• Shelf life: Use within 6 months of manufacture when stored in original packaging.
• Temperature range: Store indoors between 10°C and 30°C. Do not apply if the temperature is below 8°C.

Application and clean-up

Ensure the adhesive is completely homogenous before use. Clean all brushes, rollers, and glue baths with water immediately after use, before the adhesive dries. Once cured, the film can only be removed mechanically by sanding.