I have been on the search for an epoxy that does not need to be heated to set. I have found one and am currently working on a bow with it to see if it is usable. So far I have taken it out of the form and have floor tillered it with no problems. The epoxy is called G-flex 650 and can be found at a local West Marine or at www.westmarine.com. Check out this video to see how its going so far.