Super Glue vs Epoxy Putty: Which for Your Repair?
By Nate Sawyer, Editor · Updated July 2026
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Gorilla Super Glue Gel
The go-to instant repair glue for small jobs on plastic, rubber, and metal. The gel body makes it far more controllable than watery super glues, and the impact-toughened cure holds up to knocks that would shatter a brittle CA bond.
| Type | Cyanoacrylate (CA) gel |
|---|---|
| Set time | 10-45 sec, no clamping |
| Full cure | 24 hr |
| Bonds | Most plastics, metal, rubber, wood, ceramic, leather |
| Strength | Impact-toughened; absorbs drops and shocks |
| Format | No-run gel with anti-clog metal-pin cap |
J-B Weld SteelStik Epoxy Putty Stick
A hand-mixable steel putty that patches, rebuilds, and fills holes in metal. Where a thin adhesive just runs off a gap, SteelStik packs in, sets in five minutes, and machines like metal, making it the tool for stripped threads and rusted-through repairs.
| Type | Steel-reinforced hand-mixable epoxy putty |
|---|---|
| Set time | Sets in 5 min |
| Full cure | Machinable after 60 min |
| Bonds | Steel, iron, aluminum, most metals plus wood, concrete, fiberglass |
| Strength | 4000 PSI tensile; drill/tap/grind/file/paint |
| Temp range | Up to 350F continuous, 450F intermittent |
Our verdict
These solve different problems. Reach for super glue (Gorilla Super Glue Gel) when two clean, well-fitting surfaces need to bond in seconds - a snapped plastic tab, a loose trim piece, a cracked ceramic. Reach for epoxy putty (J-B Weld SteelStik) when the repair has a gap to fill, missing material to rebuild, or a hole to plug, because you can knead it into shape and it sets like metal at 4000 PSI. Super glue is faster and invisible but only bridges hairline gaps; epoxy putty is slower to shape but structural and machinable. If the parts touch cleanly, use super glue; if there's a void, use putty.
Frequently Asked Questions
- What is the actual difference between super glue and epoxy?
- They solve different problems rather than being better or worse. Super glue bonds two clean, well-fitting surfaces in seconds with no mixing. Epoxy putty is kneaded to mix, fills gaps, rebuilds missing material and plugs holes, then cures hard enough to drill and tap. If the pieces meet cleanly, use glue; if material is missing, use putty.
- Which one should you use on a broken plastic tab?
- Gorilla Super Glue Gel, provided the break is clean. The thick gel stays put on vertical and overhead surfaces without running, and the impact-toughened formula survives drops and vibration. One hard limit: it will not bond untreated polyethylene or polypropylene without a plastics primer.
- Which is stronger?
- The epoxy putty, by a wide margin, in the situations it suits. J-B Weld SteelStik cures to 4000 PSI tensile and takes 350F continuous, which is real structural and engine-bay territory. But it cures rigid, so on a part that flexes or vibrates heavily it can crack - there, an impact-toughened CA can outlast it.
- How much working time does each give you?
- Very little in both cases, in different ways. Super glue sets in 10-45 seconds, so a misaligned part cannot be repositioned once contact is made. SteelStik sets in 5 minutes, which means you must knead and shape it fast before it stiffens. Dry-fit and plan the move before you open either one.