

🛠️ Fix it once, fix it strong — the pro’s secret weapon!
J-B Weld 50139 Plastic Bonder is a professional-grade, two-part urethane adhesive and gap filler that sets in 15 minutes and cures in 30 hours. With a tensile strength of 3770 PSI and a unique black finish, it delivers a durable, seamless bond across plastics, metals, fiberglass, and more. Packaged in a convenient 1:1 mix syringe with a resealable cap, it’s designed for precision, multiple uses, and superior DIY repairs on automotive body panels and beyond.








| ASIN | B01IBOK7FE |
| Best Sellers Rank | #1,339 in Automotive ( See Top 100 in Automotive ) #1 in Contact Adhesives #7 in Automotive Fillers, Adhesives & Sealants |
| Brand | J-B Weld |
| Customer Reviews | 4.5 4.5 out of 5 stars (16,280) |
| Date First Available | 8 September 2016 |
| Item Weight | 60 g |
| Item model number | 50139 |
| Manufacturer | JBWeld |
| Manufacturer Part Number | 50139 |
| Model | J-B Weld 50139 Plastic Bonder Body Panel Adhesive and Gap Filler Syringe - Dries Black - 25 ml |
| Product Dimensions | 4 x 3 x 18.5 cm; 60 g |
| Special Features | Fast Drying, Strong, Waterproof |
| Viscosity | Medium |
F**Y
Great “plastic maker”.
Bought it to repair the windshield pillar on my car. After mixing the product it takes around 20 to 30 minutes to start becoming harder. After an hour it hardens and it has a little rubbery texture. I sanded it and painted it afterwards, great result and easy to use.
M**A
SAME AS DESCRIBED
Good Quality
R**T
Good product
Works well
M**H
Didn’t work for me
Doesn’t work for each plastics
A**Y
Super strong
Super strong
A**R
Great bond
This is a great product. Bonds really strong.
A**X
Great
Works great, fallow instructions.
G**K
Dried out and most likely expired.
This horrible glue had to be picked out because it had dried (white component of the glue). At first I thought it was a little, but I had to disassemble the syringe to get it. And in the end, having mixed it in the right proportion, after 48 hours the glue remained like rubber and did not glue securely, what I needed. I did not find the date of manufacture on the packaging, but this is clearly an expired product. This is a complete disrespect for the consumer, China even writes the date of manufacture and expiration date. Stay away from this brand and seller.
A**R
Works well and easy to use
P**L
The Simply 50139 J-B Weld PlasticBonder in black was perfect for a minor repair on my first 4 Figures collectible statue. It bonded strongly and seamlessly, matching the black finish so well that the repair is barely noticeable. The adhesive sets quickly and cures to a tough, durable finish, which is essential for delicate collectibles. The precision applicator made it easy to apply exactly where needed without mess. If you have small plastic repairs, especially on collectibles or detailed items, this product is a fantastic choice for a reliable and clean fix.
A**S
جيد
A**R
Great!!!
G**Y
I really liked this product. It is high quality, dries quickly and bonds very well to plastic. Highly recommended.
Trustpilot
1 month ago
2 months ago