High-performance, two-component epoxy adhesive system designed for structural bonding in demanding industrial environments.
Excellent resistance to thermal cycling, humidity, and common aerospace and automotive fluids including fuels and hydraulic oils.
Optimized viscosity for gap-filling applications with controlled flow and minimal sag on vertical surfaces.
Fast room-temperature cure profile with full handling strength achieved within 24 hours; accelerated cure possible at elevated temperatures.
Low volatile organic compound (VOC) content and halogen-free formulation compliant with RoHS and REACH requirements.
Aerospace component assembly, including honeycomb core bonding and composite-to-metal joining.
Automotive powertrain and chassis subsystems requiring vibration-dampening and load-bearing adhesion.
Railway interior panel bonding where fire, smoke, and toxicity (FST) performance is critical.
Industrial equipment manufacturing involving dissimilar substrates such as aluminum, stainless steel, and carbon fiber reinforced polymer (CFRP).
Electronics enclosures and heat sink attachments requiring electrical insulation and thermal stability.
| Chemical Type | Epoxy resin-based, two-component structural adhesive |
| Product Form | Paste (Part A) and paste (Part B); supplied in dual-cartridge or separate cans |
| Appearance | Off-white to light gray, homogeneous pastes (Part A and Part B) |
| Mix Ratio (by volume) | 1:1 |
| Working Time (23°C) | Approximately 60–90 minutes |
| Full Cure Time (23°C) | 7 days for optimal mechanical properties |
| Primary Applications | Structural bonding of metals, composites, and thermoset plastics |
| Key Features | High shear strength, low shrinkage, excellent peel resistance |
Q1: What is the primary application area for Solvay BR 680-3 Adhesive?
A: Solvay BR 680-3 Adhesive is specifically engineered for high-performance bonding in demanding composite manufacturing processes, particularly in aerospace and advanced automotive applications where thermal stability, peel resistance, and long-term durability under cyclic loading are critical.
Q2: Is Solvay BR 680-3 compatible with common thermoset resins such as epoxy and phenolic systems?
A: Yes, Solvay BR 680-3 Adhesive demonstrates excellent compatibility with standard epoxy, phenolic, and bismaleimide (BMI) resin matrices. It is designed to co-cure without compromising the thermal or mechanical integrity of the final composite part.
Q3: How should Solvay BR 680-3 be stored and handled to maintain optimal performance?
A: Store unopened containers at temperatures between 5 °C and 25 °C in a dry, well-ventilated area away from direct sunlight and strong oxidizing agents. Once opened, reseal tightly and use within the recommended shelf life under controlled humidity conditions to preserve adhesive tack and reactivity.
Q4: Does Solvay BR 680-3 require surface pretreatment before bonding?
A: For optimal bond strength and durability, substrate-specific surface preparation—such as solvent cleaning, light abrasion, or plasma treatment—is strongly recommended prior to applying Solvay BR 680-3, especially on low-surface-energy or contaminated substrates like carbon fiber or certain thermoplastics.
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E-mail: wangxingqiang@ericwchem.com
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