Description
LORD® 320/322 is a versatile two-component epoxy adhesive system designed for demanding industrial and automotive bonding applications. This 50ml cartridge format offers convenient, controlled dispensing, ideal for precision assembly tasks. Formulated for primerless adhesion to sheet molded compounds (SMC), LORD 320/322 also bonds exceptionally well to prepared metals, rubber, fiberglass reinforced plastics (FRP), polyester thermosets, thermoplastics, and many other substrates. The system can be cured at room temperature or accelerated with heat for faster throughput.
Key Features & Benefits
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Outstanding Durability: Delivers load-bearing strength equal to or exceeding bonded materials; provides impact resistance down to -40°F (-40°C).
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Primerless Adhesion: Bonds SMC and various metals without primer, reducing prep time and complexity.
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Excellent Environmental Resistance: Withstands humidity, salt spray, UV exposure, and wide temperature fluctuations.
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High-Temperature Stability: Tolerates postbakes up to 400°F (204°C) without losing integrity.
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Superior Chemical Resistance: Resists most solvents and common anti-corrosion treatments; maintains bond strength even after phosphatizing and e-coat processes.
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Non-flammable & Virtually Odorless: Safer and more comfortable to use in enclosed manufacturing spaces.
Common Applications
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Automotive panel bonding (SMC, metal, composite panels)
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Assembly of fiberglass and composite structures
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Bonding rubber components to metal frames
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Industrial equipment assembly and repairs
Technical Specifications
| Property | Value |
|---|---|
| Mix Ratio (by volume) | 1:1 |
| Work Time @ 75°F (24°C) | 20–40 minutes |
| Handling Strength | 2–4 hours |
| Full Cure Time @ RT | 24 hours |
| Accelerated Cure @ 180°F | 45–60 minutes |
| Tensile Strength | 4,440 psi (30.6 MPa) |
| Elongation | 3% |
| Glass Transition Temp (Tg) | 176°F (80°C) |
| Cured Appearance | Grey |
| Mixed Appearance | Grey paste |
| Solids Content | 100% |
Compliance & Certifications
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Contains no solvents and is non-flammable
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Designed for industrial and commercial use (not for consumer or household use)
Compatible Substrates
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SMC (sheet molded compounds)
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Prepared metals (cold rolled steel, aluminum)
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Fiberglass reinforced plastics (FRP)
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Rubber (with surface treatment)
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Thermoplastics & thermosets
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Glass and ceramics (with adhesion enhancer)
Packaging & Ordering Information
Available in 50ml cartridges designed for convenient manual or automated dispensing. Store in original packaging at 60–80°F (16–27°C) for up to two years from manufacture date.
Cleanup & Handling
Clean uncured adhesive with hot water and detergent or approved solvents. For cured adhesive, heat above 400°F (204°C) to soften for removal. Always consult the Safety Data Sheet (SDS) before use.
Need technical support or help selecting the right adhesive? Contact our team at [email protected] or call (800) 220-1966. Explore related high-performance structural adhesives on our Structural Acrylics page.
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