I'm building a stitch-and-glue eighteen footer of my own design and so far I like what I've done, but I have some concerns about doing the end pours. I made a pour in the stem from the peak of the bow down about 3" below where the bottom planks meet the side planks. (I stood the kayak on end to do this). I embedded several strips of glass in the pour. The final shape of the pour would have a cross-section in the shape of an isoceles triangle with a height of about 1-1/2" and a base of about 1", and it would be about 16" long. I mention this to give an idea of the volume of epoxy in the pour. Well, I should have known what would happen next. When I checked on it about fifteen minutes after pouring, it was too hot to touch and cracks had developed in the curing epoxy. The heat scared me enough so that I dumped a couple of handfuls of ice on it. My question is this-- I had anticipated a pour in the stern of considerably greater volume. How do I do this without burning down my shop? I guess I have to live with the cracks in my bow pour but I would like to avoid it in the stern. What is the "right" way to do this?