Leak StopperLeak Stopper Rubber Flexx Leak Repair & Sealant Spray 18 Oz | Just Point & Spray for Making Basic Repairs on Wood, Asphalt Roofing, Metal and Masonry Surfaces | Flexible Seal | Black |

So far works grate

This worked great to seal a crack in a toilet tank that was very slowly leaking. I sprayed it on and around the crack, waited overnight for it to dry up well and it worked like a charm, no more leaks. It has been done for over 2 months now and still no leaking. It saved me from buying another toilet.I also patched some loose shingles on the roof and has held up well there too.

Got this product to help seal around my skylights on my roof, it was easy to use,a decent price and seemed to work for awhile, but had to get back on my roof just to inspect things and it does crack,so I have had to try other products.

THIS PRODUCT IS " ONLY " INTENDED FOR IT'S ADVERTISED USES, BUT, IF YOU " THINK IT COULD BE USED FOR ANOTHER PURPOSE " OTHER THAN IT'S INTENDED USES - IT CAN'T !!!.IT DOES NOT FILL HOLES AND / OR GAPS IN RUBBER, FOAM, WOOD, ETC., ETC., ---- IT IS VERY " WATERY ", AND DOES NOT HARDEN VERY MUCH AT ALL.

I used the Leak Stopper Rubber Flexx Leak Repair & Sealant Spray 18 Oz on old cast-iron pipes that are leaking. The pipes are in very bad condition and not easy to replace. So, I tried this to hold me over until I can get the entire line replaced. I had to do a few coats to get good coverage. One coat was not enough. It took a few days to really set and cure well enough to stop the leaks. This is not a permanent fix, but it is holding up pretty well. It's been almost year and the areas I covered with this spray are still holding up while the pipe continues to deteriorate.