For high-strength laminating, rubber bonding, and construction joints subjected to elevated temperatures, Everbond 2P Crosslinker (Part B) is mixed with Everbond 2P (Part A) to create a tough, flexible contact adhesive bond. The crosslinking chemical reaction increases both the physical shear strength and the water and heat resistance of the assembled joint.
Adding the Part B crosslinker to the Part A contact adhesive initiates a chemical reaction that transforms the standard thermoplastic adhesive film into a thermosetting crosslinked network. This mechanism prevents the adhesive from softening under heat or failing under constant load. The system is suitable for bonding rubber components, metals, and most typical construction substrates. It can be applied using a brush, scraper, roller, or spray equipment.
Surfaces must be clean, dry, and free of grease, oil, and dust. Wipe metals clean with solvent prior to adhesive application to ensure maximum bond strength. Apply a liberal, even coat to both mating surfaces. Porous substrates will require a heavier application to prevent starving the joint.
Coverage rates depend on the application method:
Once the adhesive films are dry, bring the surfaces together and apply firm, uniform pressure. For edge strips and difficult laminates, use mechanical nip-rollers, or hand rollers and wooden blocks with a mallet, to ensure positive contact and prevent edge lifting.
The crosslinker significantly increases the strength, heat resistance, and water resistance of Everbond 2P Contact Adhesive. This prevents bond failure in demanding applications, especially those exposed to heat above 120°C.
Mix Everbond 2P (Part A) with 3-5% of Everbond 2P (Part B) Crosslinker. Only mix enough material that can be used within a 4-hour pot life to ensure optimal performance.
Avoid applying the adhesive system in temperatures below 18°C or in high humidity. These conditions can cause moisture condensation, leading to faulty bonds and reduced performance.
Everbond 2P Part B is a hazardous chemical and a dangerous good. Wear gloves, an apron, chemical goggles, and an organic vapour/particulate respirator. Ensure good ventilation, as it is flammable and can cause respiratory or skin sensitisation.
| Application | Key benefit | Primary trades |
|---|---|---|
| Bonding rubber components | Forms a tough, flexible bond with increased heat and water resistance, crucial for durable assemblies. | Rubber fabricators, automotive technicians |
| High-stress assemblies requiring enhanced durability | Achieves superior bond strength and resilience, preventing premature failure in critical connections. | Manufacturing, general construction |
| Installations exposed to high temperatures | Maintains bond integrity above 120°C (tested to AS 1937.4 1977), preventing thermal creep or adhesive breakdown. | HVAC installers, industrial maintenance, automotive |
| Joints requiring water resistance | Creates a water-resistant bond, enhancing the longevity of assemblies in damp or exposed environments. | Marine, pool & spa builders, general construction |
The Engineering Challenge: Maintaining bond integrity in elevated temperatures and harsh chemical environments.
The System-Based Solution with Everbond 2P Crosslinker: Enhances thermal resistance of adhesive bonds, reducing delamination risks in ovens, engines, or insulation installs.
Best Practice Note: Mix only what’s needed for the shift. Discard if thickening occurs, and do not attempt to re-thin.
Signal Word: Danger
Everbond 2P Part B Crosslinker is a Schedule 6 Poison and a Class 3 Flammable Liquid. Handle with extreme care.
Wear gloves (nitrile rubber recommended), an apron, chemical goggles, and an organic vapour/particulate respirator (AS/NZS 1715/1716). Wash hands thoroughly before eating, drinking, or smoking. Wash contaminated clothing and protective equipment before reuse.
Use only in well-ventilated areas, preferably with local exhaust ventilation, to maintain air concentrations below exposure standards and prevent inhalation of vapours or mists.
Store in a cool, dry, well-ventilated place, out of direct sunlight. Keep away from foodstuffs, incompatible materials, heat, and ignition sources. Keep containers closed and standing upright. Dispose of material and containers in accordance with local regulations.
Proper surface preparation is crucial for achieving the full performance of the Everbond 2P Contact Adhesive system with the Crosslinker. These guidelines apply to the overall adhesive application.
Surface prep: All surfaces must be clean and dry. Remove any grease, oil, dust, or other contaminants. This ensures direct adhesion and prevents bond compromise.
Primer: Not required. The adhesive system is designed for direct application to prepared surfaces.
Surface prep: For maximum bond strength, metals should be thoroughly wiped clean with a suitable solvent. This removes surface residues that can inhibit adhesion.
Primer: Not required. Ensure the solvent fully evaporates before adhesive application.
Surface prep: Clean and dry as per general instructions. Consider the porosity of the material when applying the adhesive.
Primer: Not required. A heavier, even coat of adhesive may be necessary to ensure proper saturation and bond with porous materials.
Surface prep: Clean and dry as per general instructions. Critical that the adhesive films are completely dry before combining surfaces.
Primer: Not required. Trapped solvent between non-porous surfaces will affect bond strength and heat resistance.
| Property | Value |
|---|---|
| Product Family | Everbond Contact Adhesive System |
| Part A Solids Content | 28 +/- 2% |
| Drying Time (before combining) | 5-10 minutes |
| Heat Resistance (system) | in excess of 120°C (tested to AS 1937.4 1977) |
| Mix Ratio (Part A to Part B) | 1 : 3-5% |
| Pot Life | 4 hours |
| Coverage (Brush/Scraper/Roller) | 1.5 m²/L (bonded area) |
| Coverage (Spray Application) | 2.5 m²/L (bonded area) |
| Part B Specific Gravity | ~1.01 Kg/L |
| Part B Colour | Amber |
| Part B Odour | Slight odour |
| Part B Solubility | Insoluble in water |
| Shelf Life | Minimum 6 months (in cool, dry conditions) |
Here are some common examples on where Everbond 2P Crosslinker used by our customers.
