Front view of the J-B Weld KwikWeld Professional blister packaging containing two 5 ounce tubes and listing features like 3127 PSI strength and 6 minute set time.
Back view of the packaging displaying detailed instructions for preparation, mixing, applying, and drying alongside safety warnings.
Studio view of the two 5 ounce squeeze tubes included in the kit, one yellow hardener tube and one black steel resin tube.
Infographic featuring the KwikWeld Professional tubes and a stopwatch icon highlighting the 6 minute set time and 4 to 6 hour cure time.
Infographic displaying the 3127 PSI tensile strength rating with a weight icon and text explaining the holding capacity.
Infographic listing suitable materials for repair including metals, stone, concrete, fiberglass, plastic, wood, and ceramic.
Infographic showing four close-up photos demonstrating that the cured epoxy can be sanded, drilled, painted, and tapped.
Step-by-step visual guide titled Easy To Use showing three steps: dispense equal amounts, mix, and apply.
Front view of the J-B Weld KwikWeld Professional blister packaging containing two 5 ounce tubes and listing features like 3127 PSI strength and 6 minute set time.
Back view of the packaging displaying detailed instructions for preparation, mixing, applying, and drying alongside safety warnings.
Studio view of the two 5 ounce squeeze tubes included in the kit, one yellow hardener tube and one black steel resin tube.
Infographic featuring the KwikWeld Professional tubes and a stopwatch icon highlighting the 6 minute set time and 4 to 6 hour cure time.
Infographic displaying the 3127 PSI tensile strength rating with a weight icon and text explaining the holding capacity.
Infographic listing suitable materials for repair including metals, stone, concrete, fiberglass, plastic, wood, and ceramic.
Infographic showing four close-up photos demonstrating that the cured epoxy can be sanded, drilled, painted, and tapped.
Step-by-step visual guide titled Easy To Use showing three steps: dispense equal amounts, mix, and apply.
J-B Weld

J-B Weld KwikWeld Professional Steel Reinforced Epoxy Fast Setting Cold Weld System Metal Repair Twin Tube 10 oz 8271

Only 1 left
SKU: 8271
$16.29

Description

Professional Grade Structural Repairs in Minutes

The J-B Weld 803-8271 KwikWeld Professional is the ultimate solution for tackling large-scale repairs where speed and strength are paramount. As the professional-sized version of the legendary fast-setting two-part epoxy system, this 10-ounce kit provides ample material for substantial automotive, industrial, and household projects. Engineered for efficiency, KwikWeld sets in just 6 minutes and achieves a full cure in 4 to 6 hours, allowing technicians and DIYers to complete repairs and return equipment to service within the same day.

Once fully cured, this steel-reinforced cold weld transforms into a durable, dark grey material that rivals the strength of metal. With a tensile strength of 3,127 PSI and the ability to withstand temperatures up to 300°F, it bonds permanently to difficult surfaces including metal, concrete, fiberglass, and rigid plastics. Its versatility extends beyond bonding; the cured material can be drilled, tapped, filed, sanded, and painted, making it an indispensable tool for fabricating parts or rebuilding worn surfaces.

Key Features

  • Professional Capacity: Large 10 oz kit (5 oz Resin + 5 oz Hardener) designed for big jobs and frequent use.
  • Fast Setting: Sets in 6 minutes and cures fully in 4-6 hours for quick turnaround.
  • High Tensile Strength: Steel-reinforced formula delivers a tensile strength of 3,127 PSI.
  • Machinable Finish: Can be drilled, tapped, sanded, filed, and painted once cured.
  • Temperature Resistant: Withstands temperatures up to 300°F (149°C).
  • Multi-Surface Bonding: Adheres to Metal, Bronze, Ceramic, Concrete, Copper, Fiberglass, Glass, Iron, and Wood.

What's Included

  • (1) 5 oz. Tube of KwikWeld Steel Reinforced Epoxy Resin
  • (1) 5 oz. Tube of KwikWeld Hardener

Specifications

Brand J-B Weld
Model Number 8271
Total Volume 10 fl oz
Tensile Strength 3,127 PSI
Shear Strength 2,424 PSI
Set Time 6 Minutes
Cure Time 4 to 6 Hours
Max Temp Range Up to 300°F
Cured Color Dark Gray
Mix Ratio 1:1
Application Temperature Up to 120°F
Container Type Tube
Pro-Tip: Surface preparation is the most critical step for a permanent bond. Before applying KwikWeld, ensure the repair area is completely free of oil, grease, and paint. For best results, roughen the surface with coarse sandpaper or a file to create a "mechanical lock" that allows the epoxy to grip into the material.