I have a Wenonah Adirondack that has seen many years of recreational paddling in local rivers and lakes. The bottom of the canoe was getting pretty worn (especially on the bow) and I found the Skid plate kit to help repair the canoe. I bought my kit through Wenonah but I think you can find it on the internet through other outlets (I do not know who makes it)
It come with two Kevlar felt pads, epoxy mix, mixing cup and gloves. The instructions to use were fairy easy to understand but I did a search on the internet and found a video of how to use the kit (the video helped) Following the instructions I applied the two Kevlar pads to the bottom of the canoe (both bow & stern) and am very happy with the results. Once complete it adds about an 1/8" of Kevlar to the boat providing additional protection to the bow and stern (they run about 6" up the keel towards the top of the canoe and about 15" down the bottom). I mixed the entire amount of the epoxy to do both sides at the same time; however, I was recommend that you do it in two steps; mix only half of the epoxy for the first side, then do the second after you are satisfied with the first. I had to rush the first side as the epoxy was already starting to harden.
At this point, I am very happy with the results and I think it gave my canoe a new lease on life so we can paddle a lot more! Here is the link to the one I purchased:
www.wenonah.com/Items.aspx?id=39