Concrete Epoxy for Anchoring & Crack Repair

This is good stuff! I used it to repair a disintegrating front step. After it cured it was quite tough, and had a smooth, glossy grey texture (don't expect it to look like concrete). A hint: Work quickly! It starts out fairly thick, and on a warm day you may only have about 10 minutes before it gets difficult to work with and won't level well.

One of the best products I’ve used yet. If you follow the instructions. You’ll have no issues. It spreads and Fills really easy. Drys harder than concrete. If you’re fixing stuff around the house. Or out at your favorite spot. You’ll love this. It’s not temporary though. Once it sets it’s not coming out.

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.

Previously used the 32 oz jar version so bought a heavy duty caulk gun. Non need- the caulk is very fluid and will only work in horizontal narrow cracks. It was soon sagging and running down the masonry wall. I had to squirt it out into a paper plate and mix it until it started to set. Then it would stay put in a vertical crack. The version in the 32oz jar was more like a paste, but not as thick as clay or play-dough, so it worked well in fairly large openings and vertical cracks.

Very well satisfied with the product Used it to fill some cracks in a basement floor. Most were small, about 1/8" deep by several feet long. The large one was about 4 inches long and 1/4 inch wide and ~1//8 inch deep . Sealed perfectly. The Epoxy hardens almost rock like in about 4 hours. A reasonably good dispenser gun works well a cheap, flimsy one maybe not. Have to squeeze the dispenser gun somewhat hard but excessive pressure is not required. The Epoxy is about 11/2 times as hard to pump out than RTV silicone. Covers well1/4 inch by 1/8 by,1/8 by 8 foot easily. Seems to work better if the crack is deep enough for the epoxy to fill, not just smeared on top of the crack. Best to smooth out the Epoxy with trowel or putty knife it into the crack, do so immediately because it hardens pretty fast. The Epoxy would be very hard to smooth out once it fully hardens. After about 20 or so minutes it really started to harden.

While this is very strong and probably works wonderfully on flat surfaces, it is very runny and does not do well on vertical surfaces. I spent 20 minutes having to keep pushing it back up the wall as it started to sag. Additionally, I tried to apply it to a slightly damp wall, and it is so hydrophobic, that it just slid off and wouldn't adhere. I don't think that any of it is still on the damp wall.

Admittedly my 100 year old garage really needs the cement floor removed and replaced but since that costs $7K and is not in the budget right now, I thought I would try this epoxy. Water getting into the cracks and freezing and thawing was just making things worse over time so sealing them up should help! I went through 6 tubes and 3 tubs of the 102 oz PC products epoxy and now have no cracks in my garage floor! Some of the cracks were more like holes and were much larger than 1/2" - this is not recommended for this product but had to be better than brittle concrete or hydraulic cement. I filled everything sanded it little and then painted with garage floor paint (just regular stuff not epoxy) It is such a vast improvement and feels very solid, is clean and dry now. This was done about a month ago now and seems to be holding up well so far to cars and people and general use. I will have to see how it does over the winter which is the real test. I did all of this for under $500 in materials. Looks like a new garage floor! The tubes are very easy to use and spread.

After a failed attempt to glue anchor bolts into concrete with another product, I was skeptical about this product. However, I was pleasantly surprised to find the consistency allowed it to flow well from container tube, and onto my anchor bolts. It remained workable with sufficient time to install my anchor bolts, level them, and clean up excess from concrete floor. This product flows nicely, but also hangs on vertical anchor bolts without running down. I was able to install 2 anchor bolts using 1 nozzle. I highly recommend this product.

Very good

It's really amazing epoxy adhesive. Easy to use. So strong that might stop an elephant. I fixed a 60mm 12mm Dia Fe500 iron rod in a hole with this adhesive.Out of 60mm rod only 35 mm rod was outside the hole. After 12 hours we bend this rod without a small crack in joint. It makes my many tasks simple. Now it became a necessity because it makes so strong bond beyond one's imagination. I recommend it to all my colleagues. Thanks.