3 tests indexed

Project Farm's Epoxy Tests: Every Result Ranked

Project Farm has tested epoxies and epoxy putties for real bond strength across materials. Here is every epoxy matchup on the index, ranked as the test found it, with links to our write-up and the source video.

What the test measured

The tests measure shear and tensile bond strength on metal, plastic and other surfaces, cure time, gap filling, and how the bond holds up to heat and water. Products below are listed in the order they finished.

Brands the tests ranked first

How often each brand took the top spot across these tests.

1JB Weld1 win

Every result, ranked

Each block shows how the test finished. Open our write-up for the full measured table, or watch the original video.

2021 test12 products

Which Epoxy Putty Brand Wins?

What the test ranked first: Test winnerJB Weld

1JB Weld Steel Stick
2KBS NuMetal New Metal Epoxy Putty
3Hercules Pro Epoxy 20
4PC-7
5QuikSteel Steel Reinforced Epoxy Putty Metal Repair
6Loctite Repair Putty
7Gorilla All Purpose Epoxy Stick
8Oatey all-purpose bonding putty

+ 4 more in the full measured results

See the full measured results Watch Project Farm’s original test

2017 test5 products

Which Plastic Epoxy Adhesives Brand Wins?

1JB Weld Original
2JB Weld Plastic Bonder
3Gorilla Clear Weld
4Super Glue Plastic Fusion
5Loctite Ultra Gel Control (super glue)

See the full measured results Watch Project Farm’s original test

2017 test6 products

Which Epoxy Brand Wins?

1JB Weld Original
2Devcon Plastic Steel
3Gorilla Epoxy
4Loctite
5JB Weld KwikWeld
6JB Weld Extreme Heat

See the full measured results Watch Project Farm’s original test

More Project Farm test categories

Jump Starters Wiper Blades Drill Bits Car Batteries Penetrating Oil Motor Oil Car Wax & Paint Care Duct Tape Flashlights Torque Wrenches Work Gloves Tire Inflators

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