When bonding sheet materials to expanded polystyrene (EPS) foam, conventional contact adhesives are a liability. They dissolve the foam, destroying the substrate and compromising your work. Styrobond ST eliminates this critical risk. It delivers a high-strength, immediate bond for sheet metals, fibre cement, plywood, and particle board directly to EPS, without any foam degradation.
Conventional contact adhesives contain solvents that aggressively attack and dissolve expanded polystyrene foam on contact. This makes them unusable for manufacturing insulation panels, caravan components, or any application involving EPS. Styrobond ST was specifically formulated with foam-safe solvents to solve this exact problem, providing robust adhesion without the detrimental effects of standard contact adhesives. It ensures the integrity of the foam while forming a strong, lasting bond.
With a spray application coverage of 2.5 m² of bonded area per litre, Styrobond ST maximises efficiency for large panel production. This figure represents the total area for two coated surfaces, offering an economical solution for extensive bonding jobs. Its consistency is optimised for conventional spray equipment, ensuring an even, controlled application. The recommended application and storage temperature range of 10°C to 35°C is critical for consistent bond formation and solvent evaporation, ensuring optimal performance.
Start by ensuring all surfaces are clean, dry, and free from grease, oil, or dust. For metal substrates, a solvent wipe prepares the surface for maximum bond strength. Apply an even, liberal coat to both surfaces from approximately 20-30 cm away using conventional spray equipment. Allow the adhesive films to dry completely until tack-free – this is crucial, especially when bonding two non-porous surfaces, to prevent trapped solvents from weakening the bond. Once dry, bring the surfaces together and apply firm, even pressure. Mechanical nip-rollers are ideal, applying a minimum of 700 Kg/m². For smaller or more challenging laminates, G-clamps or sash clamps provide the necessary sustained pressure. Clean wet adhesive with Hexane or Xylene, and use Adheseal Hand Wipes for skin.
In roofing refurbishments, particularly for concrete roofs slated for membrane or tile finishes, Styrobond ST functions as a key component in the insulation layer. It is used to securely fix expanded polystyrene insulation panels to the substrate, forming the base of the thermal envelope before subsequent waterproofing membranes or tiling systems are applied. Its foam-safe formulation ensures the longevity and performance of the insulation without chemical degradation.
No, Styrobond ST is specifically formulated with special solvents that do not degrade expanded polystyrene foam. Conventional contact adhesives often contain solvents that will attack foam, leading to damage and bond failure.
The low viscosity of Styrobond ST makes it suitable for conventional spray equipment. Apply an even coat to both surfaces from 20-30 cm away and use mechanical nip-rollers with at least 700 Kg/m² pressure for optimal bonding.
Application should occur between 10°C and 35°C. Avoid temperatures below 18°C, especially with high humidity, as this can cause condensation and lead to faulty bonds. Ensure surfaces are completely dry, particularly for non-porous materials.
Yes, Styrobond ST is classified as a hazardous chemical and dangerous good (Class 3 Flammable Liquid, Poison Schedule 5). It contains flammable liquid and vapour, can cause skin irritation, and is classified as reproductive toxicant Category 1A. Consult the SDS for full safety and handling instructions.
| Application | Key benefit | Primary trades |
|---|---|---|
| Bonding sheet metals to expanded polystyrene foam | Prevents foam degradation often caused by conventional adhesives, ensuring panel integrity. | Insulated panel manufacturers, fabricators, builders |
| Securing fibre cement sheets to expanded polystyrene foam | Delivers a strong, reliable bond without compromising the foam's structure. | Construction, cladding installers, pre-fab specialists |
| Attaching plywood or particle board to expanded polystyrene foam | Maintains foam integrity while creating robust composite panels or structures. | Joiners, cabinet makers, display fabricators |
| Assembly of foam-core panels or structural insulated panels (SIPs) | Ensures adhesive compatibility with expanded polystyrene for durable, long-term performance. | Panel manufacturers, building system suppliers |
The Engineering Challenge: Avoiding foam damage during large-scale EPS panel bonding on site.
The System-Based Solution with Styrobond ST: Spray-grade application provides quick, even coverage without melting foam, reducing material failure.
Best Practice Note: Always ensure solvents are fully evaporated before joining to prevent bond failure.
Danger: Flammable liquid and vapour. May cause skin irritation. May be fatal if swallowed and enters airways. Suspected of damaging fertility or the unborn child. May cause damage to organs through prolonged or repeated exposure.
Wear overalls, safety glasses, gloves (nitrile rubber recommended for intermittent contact), and a suitable respirator (organic vapour/particulate type if inhalation risk exists).
Use only outdoors or in a well-ventilated area. Natural ventilation may be adequate for normal use; however, ensure flameproof electrical, ventilating, and lighting equipment are used in the work area.
Store in a cool, dry, well-ventilated place between 10°C and 35°C, away from direct sunlight, foodstuffs, incompatible materials, and ignition sources. Keep containers tightly closed and upright. Dispose of contents and container according to local regulations. Shelf life is 12 months.
Proper surface preparation is crucial for strong, lasting bonds. This guide outlines requirements for common substrates used with Styrobond ST.
Surface prep: Surfaces must be clean and dry. Remove all grease, oil, and dust. For maximum bond strength, wipe clean with a suitable solvent before adhesive application.
Primer: Not required for bonding to expanded polystyrene foam.
Surface prep: Ensure surfaces are clean, dry, and free from loose debris, oil, or dust. A heavier coat of adhesive may be needed on porous surfaces to ensure full coverage.
Primer: Not required for bonding to expanded polystyrene foam.
Surface prep: Foam surfaces must be clean, dry, and free from dust or other contaminants that could inhibit adhesion.
Primer: Not required. Styrobond ST is specifically formulated for direct application to expanded polystyrene foam.
| Property | Value |
|---|---|
| Product Type | Rubber solvent |
| Curing System | Evaporation |
| Density (g/cm³) | 1.1 |
| Consistency | Sprayable Liquid |
| Thinners | Hexane |
| Application Temperature | 10°C – 35°C |
| Storage Temperature | 10°C – 35°C |
| Coverage (Brush/Roller) | 1.5 m² per litre (bonded area) |
| Coverage (Spray) | 2.5 m² per litre (bonded area) |
| Wet Clean Up | Hexane, Xylene |
| Dried Clean Up | Mechanical |
| Shelf Life | 12 months |
| Colours | Clear, Green |
| Specific Gravity (20 °C) | 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 |
| Poison Schedule | S5 |
Here are some common examples on where Everbond Styrobond ST used by our customers.
