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J-B Weld 50139 Plastic Bonder is a high-strength, quick-setting two-part urethane adhesive designed for professional-grade automotive and industrial repairs. With a tensile strength of 3770 PSI and a fast 15-minute set time, it bonds plastics, carbon fiber composites, coated metals, and concrete, curing to a durable black finish that blends seamlessly with body panels. Its precise syringe application and easy sanding after curing make it the go-to solution for millennial pros who demand reliability and style in every fix.
| ASIN | B01ID86S9M |
| Best Sellers Rank | #143,820 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #573 in Cyanoacrylate Adhesives |
| Brand | J-B Weld |
| Brand Name | J-B Weld |
| Color | Black |
| Colour | Black |
| Compatible Material | Plastic |
| Container Type | Syringe |
| Customer Reviews | 4.5 out of 5 stars 209 Reviews |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item form | Paste |
| Manufacturer | J-B Weld |
| Material | Plastic |
| Material Type | Plastic |
| Model | 50139 |
| Number of Pieces | 2 |
| Other Special Features of the Product | Strong |
| Part Number | FBA_50139 |
| Special features | Strong |
| Specific Uses For Product | Thermoset, Carbon Fiber Composites, Thermoplastics, Coated Metals, Concrete |
| Specific uses for product | Thermoset, Carbon Fiber Composites, Thermoplastics, Coated Metals, Concrete |
| Tensile Strength | 3770 Pounds Per Square Inch |
| Unit Count | 1.7 Grams |
| Viscosity Level | High |
| Volume | 0.25 Milliliters |
J**R
Standing up to tough repairs with no trouble
I love this stuff. The bond is extremely strong, it's easy to use, and the cap is extremely effective. I've had this tube for months and it shows no signs of drying or leaking. When mixed it has a thick almost puddy like consistency. This makes it easy to shape and fill irregular spaces, and it doesn't drip or deform while curing. I've used this in several small car repairs, and cracked plastic cases for tools. Every repair is holding up just fine. Remember to clean the area and rub it with an alcohol swab before using this. It still follows the same rules as glue and if you try to use it on a dirty section it won't stick. I've found its performance to be on par with regular JB Weld. Anyone who has ever used JB Weld knows how high of a compliment that is. I highly recommend this. It is easy to use and, if done correctly, extremely strong.
E**Z
Hold upright prior to removing cap to minimize uneven disbursal of material.
I didn't like how it came oozing out in an uneven pace while removing the cap. But, mixing the equal parts turned out to be highly successful in binding and filling broken pieces of a motorcycle fairing. I will know more about it's propensity for binding and maintaining plastic pieces once I begin bolting the fairings back on the MC. So far so good. A few miles under normal use should prove out one way or the other.
J**E
Works but doesn’t look perfect
Used to glue a black plastic piece on my utv. Works great. Holds together two pieces. Just not seamless. You can tell it’s been patched.
M**K
Great Product for Plastic
Used this product to bond together a front air dam for a 2002 BMW. Worked awesome and I was able to fill in cracks and sand smooth for paint.
J**S
maybe
hopefully it will hold
Trustpilot
3 weeks ago
2 months ago