ElastiPoxy Joint & Crack Filler Kit (2-gal) – High-Strength Repair Filler for Floor-to-Wall Joints, Expansion Joints, Saw Cuts, Cracks in Concrete Block Walls, & Spalled Concrete

This product is very easy to use and is perfect for basement floor cracks. The instructions are simple to follow and the kit comes with everything that’s needed to do the job. You need to use backer and sand to ensure the epoxy doesn’t run through the cracks but if that’s done right then the seal it creates is incredible.

It was very hard to work with and cracked after 2 months inside the garage. It cured too fast to get into the cut lines of the concrete, so we had to experiment with different ways to get it in without a huge mess.

I'm pleased with the final result. The temperatures have been around 40-60, a little less than ideal for working with thick resin. This is a learning process. If this is your first time, take small steps. Get a stack of small plastic cups and expect it to fail. We tried to seal the crack with san, resin, and crack. The resin was best but not perfect. What seemed to follow the instructions for a "rigid" fix... paint the crack, mix the epoxy with 3-4 parts sand, and let it sit for 15 minutes. You should be able to detect holes where the paint will flow right through into the void under the crack.1. Paint the crack with epoxy2. Use the epoxy paste you make for a rigid crack fix to seal the bottom of the crack and the ends.3. LET IT SIT for 15 minutes before continuing.This is a slow process. You let the epoxy sit after you mix it so the air bubbles get out (not perfect). The slightest wind will blow a stream of paint around the crack. I still have a hole I need to fix, this will happen when you work with large cracks. Once you figure it out, the results are impressive.

Great productEasy to use!Waterproofed the concrete expansion jointsFinished Basement right below!Customer and technical support was very helpful

Sealed basement expansion joints in August 2017. Nine months later the epoxy joints are cracking. Sent email to supplier,,, will provide update after they respond.

Unlike most expansion joint compounds I've used in the past, this one is very watery once mixed. If there is a void anywhere in your expansion joint, this product will find it and the entire pour from that joint will flow into it. Make sure your backer core is very well packed with absolutely no voids or you will waste a ton of money trying to fill your expansion joints. I prefer the slower flowing more viscous compounds over this one.Final conclusion not well suited for anything but flat, small expansion joints or cracks where you are 100% positive there are no voids beyond the visible opening.UPDATE: I reached out to the seller and let them know the product did not work out for me. They immediately refunded my money, even though I purchased the product almost 6 months ago. Even though this product did not work in my specific situation, I don't want people to think it's a bad product. And the seller is very trustworthy. So if you are thinking of purchasing from this seller, I wouldn't hesitate to do so. Thank you again.

If you are looking for self-leveling epoxy, this stuff is great. It is extremely durable and can be ground down if needed after curing. I used this product extensively as part of a radon mitigation project. As long as you are using it for its intended use, then it is great. This is self-leveling epoxy and cannot be corralled by anything other than gravity. So don't try to use this to fill cracks that don't have a visible bottom or corner joints between a slab and wall. For those applications, use an epoxy two part caulk in a caulk gun like what you find in the concrete section of Lowes. But if you have a section of floor that needs to have a coating to keep out the radon or to waterproof the floor, this is a great product for that.

works great