8 Pack Waterproof Duct Seal Sealing Putty for Drain & Wall Holes Qk Repair- | Zxfuture Mending Clay for AC Hole. Easy to Mold, Stays Soft. Ideal for Plumbing & HVAC (White)

Well, its exactly what I needed for my block walls. I tried to figure out what to use that would hold shape and nor droop like a caulk, not shrink like a putty...I looked for answers for a while, never feeling like any were right...then this popped up in my amazon suggestions and it was quite affordable so I gave it a shot. Absolutely perfect solution for my outlet areas in my slump block walls. I had outlet plates surrounded by gaping holes forever. It looked bad, they were chronically crooked, they looked janky and poorly executed. With a little enabling to ensure everything was straight behind the plate and then using this putty, I made a frame around the hole and affixed the plates, tightened them down and finished forming the putty into the holes. It looks sooooooooo much nicer now. I haven't even painted it, I could, but I dont think I need to unless this yellows. It took no time for the outside to dry, but the inside took a little longer. My photos dont have before photo references sadly, its so hard to tell what an improvement this has made. Everything is secure and wont flex now as well. Its so great. Overall, no shrinkage and all the irregular surfaces are properly sealed at last! Make sure to wash you hands or wear gloves, who knows what is in this stuff. It doesnt smell noxious or bad, i just dont know what it is and its coming in without at EPA or FDA approval. Use common sense.

This stuff makes life a bazillion times easier & is worth every penny. Had to seal up giant gaps in a enclosed trailer I bought & this did a great job. With spray sealers ya gotta worry about it getting in your eyes or about the can not spraying bc the nozzle & all that. But ya don't have to worry about any of that with this stuff. Just like play-doh when ya were a kid, slap it together, form a lil blob, & stuff it in the gap. Spread it a lil bit with your fingers then let it dry. If after a couple days any holes appear from the way it dried, then just like play-doh, get ya a lil piece & cover it up & let it dry. The only time this happened was when I was covering an extremely large gap. Otherwise it dried perfect with no lil holes. But it's so much easier at least to me. Fun too! Who doesn't like play-doh?! 😂

Used this product to seal a cracks on the roof by my chimney that was causing water to get in with the heavy rains. This product worked very well !! Worth the price, I will absolutely buy this again !! Easy to use, waterproof, easy to mold into cracks !!

This stuff is amazing!! It is very easy to work with and takes the shape of whatever you need it to with little effort. Great product

Maybe it’s good for some but it’s not worked for me nothing wrong with that

A little too messy and sticky but it works okay.

I finally got around to using this. I have a pipe connection that has leak. I put it on, let it dry. After about a month water started coming from where I sealed it. About a month after that, I touched the putty and it crumbled. I might (?) use this again if I have a short term fix. But nothing for a long term solution.

Its works like advertised. I used it to close a gap between floor and cabinet. I used my finger. Easy to apply. Smooth finish. Dry fast and good price.

Good

Seals very well under my toilet. The screw kept loosenung, and this kept it sealed nicely!

Absolutely useless. Got washed away within a few days. Does not block leaks. A sheer waste of money. Their are many alternate products better than this. Buy at your own risk.

I had a plastic fitting leak on my pool inlet valve(plastic), mixed up a pack and put it on, lasted all summer, no leak up to closing my pool.

Good for quick seal but susceptible to the weather.