Geocel Corp. 29402 Instant Gutter Seal

This stuff is great! I squeezed out the thick silver grey goop on to the seems, was a little pessimistic, and finished the job in minutes. The next day came back and I had a wonderful solid seal, now very optimistic. Compared to similar products sold by big box stores (i.e. Lowes, Home Depot, etc...) this stuff out performs what they offer hands down.I only have two suggestions to the manufacturer;1) Add a screw on nozzle, similar to a tube of caulk, where we can cut the tip to the desired thickness of the material, as well as being able to control the flow better. It's difficult to get behind a gutter that butts up to a house without this type of feature. I had to squeeze out the stuff onto my finger (latex gloves, check) and smear the stuff onto the seam. Although I may have had to still do this with a nozzle, at least with the nozzle I could have controlled placing the material onto the seam first.2) How about making this stuff in white. Not sure about the majority of people, but where I live, the majority of gutters are white. This stuff is silver grey and you can see the stripes going around the length of my gutters. I'll have to spray paint them white when the weather permits, but it certainly would be a nice plus to your product if this was yet another task I didn't need to do. If you do make this stuff in white, please get a hold of your distributors or resellers and ask them to make it available to us. Great stuff though.

First let me say I have only one corner seam on my seamless gutters that always leaks. I scraped off the old sealant and applied 50 year silicone caulk and that did nothing. I then got most of that off and used duck seal putty and that didn't work either. I took that off and applied this product and it didn't work. However I went back over it and really put a lot up there and it has sealed it now going on two months and we have had -10 to 60 degrees and it is still holding. My suggestion is apply liberally!

I bought this product to fix a rain gutter that leaks. It leaks right over the front porch which really causes a problem in winter because I end up with a big, dangerous icy spot below the rain gutter. Fortunately, my daughter said she would climb the ladder and fix it. She read the instructions, applied the product. We've had a lot of rain and snow lately. It hasn't leaked. I just checked again - no leak., I will report back if I have anything new to report.

This stuff works. I have gutters that are 20 years old that were leaking. My gutters go around the entire house and connect in each corner. At the corners of the house the gutters are overlapped, machine screwed together and sealed with the original sealant from 20 years ago. I tried some DAP Gutter and Flashing Sealant. The DAP product stuck to me and would not stick to the aluminum gutters. I would imagine the DAP product would work on new, perfectly clean aluminum, but lets get real that isn't the real world. My gutters are 23 feet above the ground so working with a marginal product is not acceptable. I cleaned the seams with mineral spirits as best I could and then wearing gloves applied the Geocel with my fingers and a plastic putty knife to feather the Geocel out from the seams. This stuff is somewhat thick and works better when warm, but I was able to get it to work on a 65 degree day. Bottomline: Geocel will stick to old aluminum gutters that are cleaned when other products will not and will seal the gutter seams to stop leaks.

This gutter sealant worked great and was easy to apply, unlike other sealants I have tried. A sealant I bought at a big box store was impossible to use as it strung out like spider webs! This product isn't silicone so doesn't weather and eventually peel off. I would not use anything else now that I have this gutter leak sealant. This sealant looked much like the original sealant that was used in the corners of my gutters when they were first installed.

I really wanted to like this and I wanted it to work for me. I applied it with gloves but the product kept rolling off of the gutter and sticking to my gloves. No matter how many times or how hard or how soft I tried to apply the product, it just wouldn't stick. Once I was thoroughly frustrated with trying to apply the product, the end seal of the tube split open, it oozed out the back, and that was all she wrote. This gutter sealer had good reviews. I thought it would work. Maybe it was a bad batch. I won't buy it again.

I tried to use this on a leaking gutter corner and it would not stick at all. I tried to smooth out with my hand like other adhesives and it really sticks to you hands. This is the most useless, terrible product I have ever used. It is soo bad that I have decided to live with the gutter leak.

Make sure to clean off your gutters before applying. In my case I was lucky since I needed them externally to the gutter. I had a fairly large gap that water was leaking from. Theres no gap anymore since this stuff filled it and stopped all leaking. This stuff works better than caulk. Its very sticky though so wear disposable globs and have some paper towels for cleanup.

I applied the product to a leaking corner gutter area. Putting a bead on and then smoothing with a putty knife ensuring I pushed the product into any gaps. With heavy rains a few days after applying the test proved to be positive as not a drip of water leaked out.

Product that actually works!

Excellent product