: I used it on my igdllossuit folder, over polyester from Tacoma Tent
: and Awning. It makes a nice flexible skin, but has one problem.
: It is porous! It works for short trips, but anything longer than
: an hour and you will have a kayak full of water. I have tried
: recoating, and it still leaks. I sold the kayak to a friend, and
: she recoated it, and it still leaks. There are much better
: coatings out there.

It does shrink as it cures eliminating runs, but I think that is how the porousness develops. The shrinkage also means it takes more coats to fill the weave. The saltwater caused a reaction with the aluminum tubing, that would form a white powder on the aluminum. The powder would also appear on the outside of the skin around the tubing.

Below is a pic of the kayak with Plasti-dip. If you search the archives, you should find more about it. Check both Plastidip and tool-dip.