- System Three Quick Cure 15 Epoxy Adhesive, 1 Qt Kit

I’ve been using this epoxy in high‑power rocket builds, and it does the job well. The 15‑minute cure time is handy when you don’t want to wait around, and the bond strength has held up under flight stresses. It mixes easily and flows into joints, but it can run if you’re working on vertical surfaces. Adding a thickening agent fixes that—I used it for fin fillets with excellent results, smooth and strong. It’s perfect for cardboard tubes, where it soaks in just enough to create a solid bond without weakening the material. I haven’t tried it on fiberglass yet, but for cardboard airframes, it’s been excellent. It also works great for centering rings and tube couplers, giving clean, reliable joints that hold up under load. There’s a bit of an odor, so ventilation helps. I wore nitrile gloves, and cleanup was simple with isopropyl alcohol or acetone before it set. Overall, it’s a solid epoxy for hobby use: quick, reliable, and easy to work with.

Great product

I have been using System Three adhesives for several decades. They are my "go to" glues. Quick Cure 15 and Quick Cure 5 are good glues, but they are not my first choice. System Three's T-88 has a much longer working time, is stronger and is more waterproof but it must dry overnight before it can be handled. I use Quick Cure 15 only when I need to handle something within a couple of hours. Quick Cure works well as a filler when mixed with sawdust. Excess can be cut off with a knife soon after it has set up and sanded after a couple of hours.

All Good

I have only purchased this once, so not sure if this is common... but one side(there are two sides) was frozen shut and wouldn't move - so just threw it away

Used product to fix/cover cracking in wide pine floors. Leveled great and don't have to worry about cutting our feet on trouble spots anymore...

Purchased for filling small holes in boards before applying epoxy flood coat. It is really strong and I had a hard time sanding the filled areas before applying the finish coating. It would be good for merging or bonding material.

Great product does exactly what it says. Easy to use. Strong.