2017 test5 productsAdhesives, Glue & Tape
Which Plastic Epoxy Adhesives Brand Wins?
A head-to-head test of 5 plastic epoxy adhesives options with the measured results for each. See how they ranked and watch the full test video.
Ranked first
JB Weld Original
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The measured results
Every number below is read straight from the test. Scroll sideways to see all measurements. Products are listed in the order they finished.
| Product | Weight Hang Test | Twist Torque Test | Dead Blow Impact Test | Final Flex Demo |
|---|---|---|---|---|
| 1JB Weld Original | the only survivor of the group, held roughly 11 lb (8 lb plus chain weight) before eventually failing; failure occurred at the plastic surface, about 95 percent of the epoxy remained stuck to the steel | exact failure torque not clearly attributable in this pass of the transcript, but it outlasted Plastic Bonder (35 inch pounds) and Gorilla (40 inch pounds) | tied for first place, broke free from the plastic but remained glued well to the metal, described as one of the softer more flexible epoxies giving a good mix of flexibility and strength | presenter pulled the bolt by hand after the dead blow test and showed a lot of flexibility before it snapped, described as not having much strength but a good bonding job |
| 2JB Weld Plastic Bonder | best among the plastic-specific epoxies (excluding JB Weld Original), beat Gorilla, Super Glue Plastic Fusion, and Loctite by over a pound; bonded better to the steel than to the plastic and failed at the plastic surface | first to fail, at 35 inch pounds | disappointing, described as a very hard epoxy that does not stick very well to plastic | not tested, demo only performed on JB Weld Original |
| 3Gorilla Clear Weld | failed at both the steel and plastic surfaces, described as not sticking well to either | second to fail, at 40 inch pounds | amazing performance, best or tied for best due to being very flexible and rubbery rather than hard | not tested, demo only performed on JB Weld Original |
| 4Super Glue Plastic Fusion | failed to fuse to the plastic itself, epoxy remained on the steel | exact failure torque not clearly attributable in this pass of the transcript | poor performance, described as very rigid, hard, and not able to stand up to vibration | not tested, demo only performed on JB Weld Original |
| 5Loctite Ultra Gel Control (super glue) | not distinctly described beyond the general group of plastic-specific epoxies that lost to JB Weld Plastic Bonder by over a pound | held so well that the plastic bolt itself broke before the epoxy bond failed, undefeated at least up to 115 inch pounds, winner of this test | did a great job sticking to the steel but failed to stick to the plastic, described as very hard and rigid and unable to take vibration or impact | not tested, demo only performed on JB Weld Original |
How it was tested
- gravitational weight hang test to failure
- twisting torque test to failure using a torque wrench, in inch pounds
- dead blow impact test with a wrench dropped repeatedly, increasing in size and weight, until failure
- final hand flex demonstration on JB Weld Original only