PC ProductsPC-Concrete Epoxy Adhesive Paste for Anchoring and Crack Repair, Two-Part 102 oz in Two Pails, Gray 71021

I bought this product after about an hour of online research of different brand epoxies. A few weeks ago I poured our new cast-in-place concrete countertops using Quikrete countertop mix from Lowe's. The concrete bag instructions say the forms can be removed after 18 hours. I waited 24 hours before removing the forms but I should have waited longer-- it wasn't ready. I found that out the hard way when a 6" chunk of concrete broke off the front edge corner of my brand new counter. DANGIT. Luckily, the chunk broke off whole and clean, in one piece. It was a perfect fit when pressed back into place, no chips or small bits to mess with. I used this PC epoxy to reattach the broken chunk following the simple instructions on the package. I held the chunk in place by hand for about 25 minutes to let the epoxy set, then taped the chunk in position to hold it overnight. The heavy chunk of concrete is now SOLIDLY reattached and I'm pretty sure if I whacked it with a hammer, the concrete around the repair would shatter before this epoxy lets go. The gray color is a close match to the raw, un-colored concrete and the repair seam is thin and hardly noticeable. I'm confident that once the concrete is stained it will be nearly invisible. This is good, strong epoxy for repairing broken concrete, not just for filling gaps and cracks but also as an adhesive for actually reattaching chunks of concrete. Oh, and when I called PC Products to ask a couple questions before I bought this stuff, I got an actual person on the phone who was very knowledgeable about the product. Excellent.

I am a complete DIYer. I decided to mount my own tv. Using an underpowered "hammer" drill, the top hole for the mount was drilled too wide and came home the next day to the wall plug falling out from the weight of the tv (set cushions under it of course). Removed everything, bought a caulk gun, followed the instructions to a T (also watched several youtube videos), used only the bolt from a sleeve anchor as the hardware twisting as I went in. It was rock hard in short order and the TV mount has not moved since for at least 6 months. It's a winner.

It was easy to use. I could paint it. So far it is holding its own. Not sure over time but am happy with it now

I used this for epoxy anchors for a two post lift installation. Worked very well. You got about 20 minutes of working time. Rock solid at 24 hrs. Gave it a four because for the size of the tube there is not that much epoxy that comes out but it does do what it needs to do. Just make sure to clean the cement holes out throughly before applying the epoxy.

Great product and the curing time was very quick. Just don’t make the mistake of mixing too much at once like me. I wasted so much because of that mistake.

I used this product to anchor vertical rebar in a concrete footing to provide reinforcement for a stone wall. Epoxy is preferable to cement based products to avoid problems with expansion or contraction of the bonding material. This product was chosen for its relatively long cure time and because it can be used without a special gun. Many epoxies cure rapidly and/or require special tools. I wanted to be sure I would have plenty time to fill the holes and install the bars as desired. With regard to pull out strength, I can't comment on the actual performance in my application, of course, but it does cure as advertised and makes an apparently strong bond to the concrete and bar. If you believe the published product specifications, the product is suitable for many construction applications. If you require compliance with standards, note that as of August 2011 the product was NOT reevaluated for compliance with the Uniform Building Code, which was updated for earthquakes and broken concrete. Be sure to check the product Web-site for recommended hole depths and diameters for your application, and follow directions carefully to ensure relatively high pullout strengths.As suggested by the product description, it can be used in a number of applications other than anchoring bars in concrete. I also used this product to repair broken sections of terra cotta drainpipe where gutter down spouts met the pipe at grade level. I used duct tape to hold the pipe in place while the epoxy cured. The results were very good.The only drawback of this product as shipped is that it comes with two nozzles. Be sure to plan accordingly if you expect to be doing a number of small jobs. Nozzles for similar products may be available locally and might fit the cartridge.

The PC products are awesome in general. This PC-Concrete comes in a container that requires a long special nozzle to be screwed on that container, that mixes the epoxy for you while pushing it through a normal caulking gun/dispenser. I used this to fill in some narrow concrete cracks plus to fill in a bigger area of concrete deterioration - maybe 6x8 inches.The results were good, but due to the difficulty and slowness of getting the mixture out of the long nozzle, it took a lot longer than if I could have just mixed it by hand myself. Also there is some wasted product left in the nozzle and my hand was killing me for a week given the amount of pressure I had to apply to get the nozzle to extrude. In the end I took the nozzle off and mixed the epoxy by hand myself which was way more efficient.I would prefer they sell this concrete patch in smaller separate canisters like they sell the other PC epoxy lines.