Description
LORD 305-2 is the hardener component Part B of the LORD 305 two-part epoxy adhesive system, supplied in bulk packaging for production, fabrication, and industrial bonding applications. When mixed with LORD 305-1 epoxy resin, the system delivers strong, durable, chemically resistant bonds across a wide range of substrates.
LORD 305-2 is formulated to react with 305-1 resin at a controlled 1:1 mix ratio, producing a tough, load-bearing epoxy with excellent environmental durability. The cured adhesive system resists moisture, chemicals, oils, and temperature cycling, making it suitable for demanding structural and elastomeric bonding applications.
Bulk packaging allows flexibility in batch size and application method, supporting brush, spatula, trowel, or custom mixing processes in higher-volume manufacturing environments.
System Compatibility
LORD 305-2 must be mixed with LORD 305-1 Epoxy Resin to achieve full adhesive performance. The LORD 305 system is also available in 50 mL and 200 mL dual cartridges under the LORD 305-1/305-2 designation for customers who prefer pre-metered dispensing.
Key Features and Benefits
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Bulk epoxy hardener for structural adhesive systems
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Designed specifically for use with LORD 305-1 resin
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Produces strong, durable, load-bearing epoxy bonds
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Chemically resistant to oils, greases, solvents, acids, and alkalis
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Environmentally resistant to moisture, sunlight, and weathering
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Maintains performance across a service temperature range of -30°F to 250°F
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Low shrinkage and good creep resistance when cured
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Room temperature cure with optional heat acceleration
Typical Applications
When used as part of the LORD 305 epoxy system, LORD 305-2 supports applications such as:
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Rubber-to-metal bonding for bushings, mounts, and vibration isolators
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Structural bonding of metal components
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FRP, phenolic, and SMC panel bonding
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Wood laminations and engineered assemblies
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Gaskets, rollers, and elastomeric components
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OEM part fabrication and industrial repair
Technical Specifications – LORD 305-2 Hardener (Part B)
| Property | Value |
|---|---|
| Appearance | Blue liquid |
| Viscosity at 77°F | 8,000 to 14,000 cP |
| Density | 9.3 to 9.9 lb per gallon |
| Flash Point | Greater than 200°F |
| Mix Ratio with 305-1 | 1:1 by volume |
| Mix Ratio by Weight | 1:1 |
Cured Properties (305-1 Resin + 305-2 Hardener)
| Property | Value |
|---|---|
| Tensile Strength | 3,350 psi |
| Elongation at Break | 9.9 percent |
| Young’s Modulus | 283,694 psi |
| Glass Transition Temperature | 141°F |
| Cured Appearance | Translucent blue |
These cured properties reflect the performance of the complete LORD 305 epoxy system when mixed and cured according to recommended procedures.
Available Packaging
- 50ml & 200ml Cartridges
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1-gallon containers (4 per case)
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5-gallon pails
LORD 305-1 epoxy resin is sold separately. Dual-cartridge options are available for pre-metered mixing and simplified dispensing.
Why Choose Bulk LORD 305-2
Bulk LORD 305-2 hardener is ideal for manufacturers and fabricators who require flexibility in batch size and application method while maintaining the proven performance of the LORD 305 epoxy system. It enables consistent, durable bonding when paired correctly with LORD 305-1 resin.
Need Help with Mixing or Application
Chemical Concepts supports the full LORD 305 epoxy system, including bulk resin, bulk hardener, and cartridge formats. Contact our technical team for assistance with mix ratios, surface preparation, and dispensing options.
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