I have used the same US Composites epoxy formulation, as well as their 1708 biaxial cloth, Kevlar 49 cloth and tape, as well as their CoreMat for both repair work on existing hulls and refurbishing a duck boat. I am currently using it and their fiberglass cloth to repair a combing crack on my Poke Boat. After I ran through the last of my Val-oil stash, I now seal my basswood decoy heads with it on composite birds, as well as using it on the whole decoy for my corks. I used one of their 8lb. density foam kits, along with some Smooth-On products to make four dozen mallard pickleweeds off of a carved master. They claim their foam inventory turn-over is quite rapid. However, I found that one of the two-part foam components crystallized a little too quickly to be as "fresh" as they claim.