MAX, Super Strong, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools, Showers, Outdoors, Concrete, Brick, Pavers, UV Resistant, 28 oz Cartridge, White, 1-Pack

This stuff works real good for what I’m using it for, gluing foam board to inside of boat. Still have to slice and dice board for curves etc. Exspensive stuff though, haven’t found anything better yet.

I purchased this because the stone in my pool was loose. The very next day, it was totally firm and stable. It sure is waterproof so far.

I love this brand, very nice glue

I recommended to everyone specially the contractors plumbers electrical

rrplaced loose pool tiles on an inground pool tiles stayed in place after about 10 seconds of holding an adhered very well once dry after about 1- minutes very happy with my choice of flex glue

im sure this product would have worked great IF i had the larger calking device necessary for it's function! LOL

The glue absolutely would not flow. It wasn't just thick, it was almost solid. My guess is it had simply gotten old and dried out. The manufacturer should spot check the product. I replaced it with a similar product and it works fine in my dispenser. I didn't bother returning it. Too much trouble. This problem cost me a half a days work on my project. I'll never buy a FLEX GLUE product again.

I needed to reinstall an acrylic pane in our solarium roof which had come loose after some 30 years from original placement. I had tried other calking type adhesives and they worked for a short time but came loose, again. I have used Flex-Glue products, before but the price on these tubes shocked me, a bit. However, after trying other products (including the less expensive Flex Glue product, I decided what with the wet location and likely wet installation, I would try this. It worked FIRST TIME and it's still there!! Be SURE you have the proper sized gun for these --- they are a lot bigger than the usual calking gun but work the same way. application is fairly easy and the initial adhesion is fairly quick. Fixturing, in my case was a bit difficult (the pane was in the middle of an entirely plastic roof area and could not be reached from the side, so I worked from underneath in the room) but it worked out. This product definitely works, as advertised!