For bonding sheet metals, fibre cement sheet, plywood, and particle board to expanded polystyrene foam, Everbond Styrobond ST is a spray-grade contact adhesive formulated with specialised solvents that will not melt or degrade the polystyrene substrate. Its low viscosity allows application through conventional spray setups, wet-on-wet brush, or roller systems without solvent-eat failures.
Everbond Styrobond ST relies on an evaporation curing system. Unlike standard contact adhesives containing aggressive solvents that dissolve expanded polystyrene, this rubber-solvent formulation bonds securely to the foam surface without compromise. The adhesive must be applied to both mating surfaces, allowed to dry completely to prevent trapped solvents from weakening the bond, and then joined under physical pressure to achieve a permanent, heat-resistant contact bond.
Ensure all surfaces are clean, dry, and free of grease, oil, and dust. Wipe metals clean with solvent before application. Apply a liberal, even coat to both surfaces. Porous materials will require a heavier coat than non-porous substrates.
Once the adhesive films are dry, bring the surfaces together immediately. Apply uniform pressure using a mechanical nip-roller, hand roller, rubber mallet, or a wooden block and mallet. For edge strips or difficult-to-lay laminates that show signs of lifting or curling under varying atmospheric conditions, maintain pressure using G-clamps or sash clamps throughout the bonding period.
Clean up wet adhesive using Hexane or Xylene. Dried adhesive must be removed by mechanical scraping.
Will Styrobond ST melt polystyrene?
No. It uses solvents selected for bonding expanded polystyrene without attacking the foam.
Do I apply it to one surface or both?
Apply it to both mating surfaces and allow each film to dry before joining.
What temperature range can it be applied in?
The documented range is 10°C to 35°C, with extra condensation risk below 18°C in high humidity.
How much coverage should I expect?
About 1.5m² per litre across both surfaces by brush or roller, or up to 2.5m² per litre by spray.
| Property | Value |
|---|---|
| Product Type | Rubber solvent |
| Curing System | Evaporation |
| Density | 1.1 |
| Consistency | Sprayable Liquid |
| Application Temperature | 10°C – 35°C |
| Storage Temperature | 10°C – 35°C |
| Coverage (Brush/Roller) | 1.5 m² per litre (bonded area) |
| Coverage | 2.5 m² per litre (bonded area) |
| Wet Clean Up | Hexane, Xylene |
| Dried Clean Up | Mechanical |
| Shelf Life | 12 months |
| Specific Gravity | 0.770 Kg/Lt |
| Relative Vapour Density (air=1) | Approx 3 |
| Vapour Pressure (20 °C) | 15 kPa (Estimated) |
| Flash Point | -20 °C |
| Flammability Limits | 1.0 - 7.5 % (V/V) |
| Autoignition Temperature | >350 °C |
| Boiling Point/Range | > 66 °C |
| Storage Conditions | $10^\circ\text{C}$ – $35^\circ\text{C}$ |
| Coverage Rate | Total $1.5\text{ m}^2$ per litre (spray applied) |
| Clean Up | Hexane, Xylene |
Here are some common examples on where Everbond Styrobond ST used by our customers.
