J-B Weld
J-B Weld 8280 Epoxy Hand Tool
Two-part epoxy adhesive bonds concrete, masonry and metal with a 4-hour working time and 550 °F performance limit
- TypeDrywall & Plastering Tools
- Permanent bond on concrete, masonry and metal
- Ambient cure reaches full strength in four hours
- Dark-grey finish suits interior and exterior repairs
- Withstands continuous heat up to 550 °F
- Low VOC content below one percent
Epoxy Adhesive for Concrete and Metal
This two-part epoxy bonds concrete, masonry and metal with a permanent dark-grey joint. The resin and hardener are supplied together in tube containers and cure at ambient temperature. It is suited to interior or exterior repairs where a water-resistant bond is required.
4-Hour Working Time Before Cure
Mixed adhesive remains workable for four hours, giving ample opportunity to position and adjust parts. After that window the bond sets permanently, so the project must be planned to finish within the period.
Simple Mix-and-Apply Installation
Squeeze equal amounts of resin and hardener onto a disposable surface and blend until the colour is uniform. Apply to clean, dry surfaces and clamp if possible. The main risk is exceeding the working time or mixing off-ratio, either of which weakens the final bond.
Highlights
- Permanent bond on concrete, masonry and metal
- Ambient cure reaches full strength in four hours
- Dark-grey finish suits interior and exterior repairs
- Withstands continuous heat up to 550 °F
- Low VOC content below one percent
Specifications
| Brand | J-B Weld |
|---|---|
| Type | Drywall & Plastering Tools |
Questions about this item
What does the 550 degree Fahrenheit maximum performance temperature mean for a repair?
The cured epoxy keeps its bond strength up to 550 degrees Fahrenheit, so it can be used on parts that get very hot such as exhaust components or engine casings.
How does the ambient cure method affect working time?
The epoxy sets at room temperature without heat or UV light, giving a four hour working window before it starts to harden.
What container size is supplied for the resin and hardener?
The hardener tube holds five fluid ounces, and the matching resin tube is included in the same pack.
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