Automotive and household repair epoxy that bonds rigid materials for long-lasting fixes. Ideal for DIYers and professionals who need repairs that can be sanded, drilled and painted. Is J-B Weld Original Cold-Weld Epoxy right for your workshop and repair projects?
⚡ At a Glance
- • Bond Strength: Strong permanent bond on rigid materials
- • Best for: DIYers and professionals repairing metal, concrete and household items
- • Not ideal for: Flexible joints or applications that require elasticity
Two-part epoxy sets to a rigid finish suitable for durable household and automotive repairs. Simple mixing and a relatively quick set time make it practical for workshop use.
Permanent metal and mixed-material repairs, with 5020 PSI tensile strength
Two-part epoxy chemistry cures to a highly cross-linked polymer, producing a rigid bond rated at 5020 PSI tensile strength when fully cured. The chemical reaction between resin and hardener creates a structural adhesive layer that bonds to prepared surfaces.
High-strength joints resist mechanical stress, making effective repairs on metal, wood and many rigid plastics. Expect a durable fix suitable for mechanical and household applications.
High-heat resistance, with tolerance up to 550ºF when fully cured
Once fully polymerised, the cured epoxy withstands elevated temperatures up to 550ºF. Thermal stability comes from the cured polymer network that resists softening under heat.
Suitable for repairs near engines, exhaust components and other hot zones where a rigid, heat-resistant bond is required. Use on parts that see intermittent high temperatures after full cure.
Professional finishing, with a sandable, drillable and paintable cure
Cured material machines and accepts surface work because the epoxy hardens to a rigid, workable state. Sanding and drilling alter the cured polymer surface for clean finishing.
Repairs blend into the surrounding surface and take standard coatings, enabling neat restorations on visible repairs. Ideal when a tidy, painted finish matters.
✨ The 4 Key Reasons for J-B Weld Original Cold-Weld Epoxy
5020 PSI Tensile Strength, secures heavy-duty repairs that resist mechanical stress long-term
Withstands High Temperatures, endures heat up to 550ºF for engine-area repairs
Versatile Surface Compatibility, bonds metal, brick, concrete, wood and many rigid plastics
Sandable and Paintable Finish, enables professional-looking repairs ready for finishing within a day
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Size: 10 oz
- Colour: Dark grey (sets to dark grey)
- Setting time: Sets in 4-6 hours
- Full cure: 15-24 hours
❓ Frequently Asked Questions
Q: How long until a repaired part can be handled?
A: Sets in 4-6 hours and reaches full cure within 15-24 hours, so light handling is possible after the initial set but full strength requires the full cure time.
Q: Can it withstand high temperatures near engines or exhausts?
A: Yes, the cured material resists temperatures up to 550ºF when fully cured, making it suitable for many engine-area repairs.
Q: Which materials will it bond to?
A: Designed for use on metal, brick, concrete and many rigid plastics, and commonly used in automotive, plumbing, marine and household repairs.
🏆 Our Verdict
Suitable for DIYers and professionals who need a rigid, durable adhesive for metal, concrete and similar materials. High tensile strength and heat resistance make the product especially useful for automotive and workshop repairs. Long-term value comes from permanent, finishable repairs that reduce the need for repeat fixes.
