J-BWeld
J-B Weld Original Steel Reinforced Epoxy Syringe, High Strength, 2 Pack, Dark
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Highlights
- J-B Weld is The Original Cold-Weld two-part epoxy system that provides strong, lasting repairs to metal and multiple surfaces. Mixed at a ratio of 1:1, it forms a permanent bond and can be shaped, tapped, filed, sanded and drilled after curing. At room temperature, J-B Weld sets in 4-6 hours to a dark grey color. Full cure is reached in 15 hours. J-B Weld has a tensile strength of 5020 PSI and sets to a hard bond overnight. It can withstand temperatures up to 550°F when fully cured
- CURE AND SET TIME: J-B Weld Original High-Strength Syringe sets in 4-6 hours and cures in 15 hours.
- STRENGTH: J-B Weld Original Syringe has tensile strength of 5020 PSI.
- GREAT FOR: Great for household repairs, automotive, plumbing, marine, crafts and more.
- DO IT YOURSELF: Big or small, you can DIY it with J-B Weld. Our heavy duty epoxy and adhesives repair & restore it right the first time. J-B Weld delivers superior performance, quality, and results for the World’s Strongest Bond.
Why You'll Love It
- Resists up to 5020 PSI tensile strength for demanding structural and household fixes
- Withstands temperatures up to 550°F once fully cured for high-heat applications
- Can be drilled, tapped, sanded, filed, and shaped after reaching full cure
- Convenient 1:1 mix ratio forms a permanent bond across metal and other surfaces
- Comes in a two-pack syringe format for straightforward dispensing on DIY projects
Pros
- +High 5020 PSI tensile strength
- +Heat resistant up to 550°F
- +Can be drilled, filed, and sanded
- +Bonds metal and multiple surfaces
- +Convenient 2-pack syringe package
Cons
- -Requires 15 hours for a full cure
- -Takes 4 to 6 hours to set
- -Cures only to a dark grey color
Detailed Review
The J-B Weld Original Steel Reinforced Epoxy Syringe is a cold-weld two-part adhesive system designed to create strong, permanent repairs on metal and various other surfaces. Packaged as a two-pack with a 1:1 mixing ratio, it offers a practical solution for DIY tasks ranging from plumbing and automotive fixes to marine, craft, and general household projects.
Mechanical performance is a major highlight, with the cured epoxy delivering a tensile strength of 5020 PSI. Once fully cured, the material behaves similarly to solid metal, meaning you can shape, file, sand, tap, and drill into it without compromising the bond. It also handles extreme thermal environments, withstanding temperatures up to 550°F.
Working with this formula requires patience, as it is built for strength rather than instant speed. At room temperature, the epoxy takes 4 to 6 hours to set and requires a full 15 hours to cure completely overnight. It dries to a dark grey finish, which works well on mechanical components but may be noticeable on projects requiring a clear or light-colored adhesive.
Verdict: J-B Weld Original is an ideal choice for anyone needing a heavy-duty, heat-resistant bond for automotive, plumbing, or workshop repairs. If your project allows for an overnight cure time, this two-pack provides reliable holding power that can be drilled and shaped to fit your needs.
Specifications
- Tensile Strength: 5020 PSI
- Set Time: 4-6 hours at room temperature
- Full Cure Time: 15 hours
- Maximum Temperature Resistance: Up to 550°F
- Mix Ratio: 1:1
- Cured Color: Dark grey
- Package Quantity: 2 pack
Who Should Buy It
A great fit if you:
- Need a high-strength bond that withstands heat up to 550°F
- Plan to drill, tap, sand, or shape the repaired area after curing
- Are repairing metal, automotive parts, marine gear, or household plumbing
- Do not mind waiting 15 hours for a full overnight cure
Consider something else if you:
- Need a fast-setting adhesive that cures in minutes
- Require a clear, transparent, or paint-matched finish rather than dark grey
FAQ
How long does this epoxy take to set and cure?
At room temperature, the epoxy sets in 4 to 6 hours and achieves a full cure in 15 hours.
Can I machine or drill into the epoxy after it hardens?
Yes. Once fully cured, the bond can be shaped, filed, sanded, tapped, and drilled.
What is the maximum temperature this adhesive can handle?
When fully cured, J-B Weld Original can withstand temperatures up to 550°F.
What color does the epoxy turn once cured?
It sets and cures to a dark grey color.
Photos
Product Specs
| Specification | Details |
|---|---|
| Specific Uses For Product | Repair |
| Item Form | Liquid |
| Other Special Features of the Product | Fast Setting |
| Container Type | Syringe |
| Viscosity Level | Medium |
| Full Cure Time | 15 hours |
| Water Resistance Level | Waterproof |
| Tensile Strength | 5020 psi |
| Compatible Material | Brick, Metal |
| Item Package Quantity | 1 |
| Volume | 0.85 fluid ounces |
| Material Type | Epoxy |
| Color | Dark Grey |
| Brand Name | J-B Weld |
| Model | 50165-2 |
| Unit Count | 1.7 Fluid Ounces |
| UPC | 043425990556 |
| Number of Pieces | 2 |
| Global Trade Identification Number | 00043425990556 |
| Manufacturer | J-B Weld |
| Included Components | Mixing Stick |
| Item Type Name | Epoxy Adhesive |
| Part Number | 50165-2 |
| Best Sellers Rank | #1,486 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #6 in Metal Filled Epoxies |
| ASIN | B0CTB8GHYP |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,149) 4.7 out of 5 stars |
| Brand | J-B Weld |
| Material | Epoxy |
| Special Feature | Fast Setting |
