I had very bad results doing this ....
Posted by: seadart
on Feb-06-13 2:32 PM (EST)
I did a project on my unheated patio here a couple of years ago. Usually not a problem in Southern California, but we had a big temperature drop, and I tried using spot lights keep the epoxy warm. Problem was it created hot zones very near the lights and cold zones quite close by. I probably could have worked out a better system but was not impressed with the results I got trying this once. I have seen surfboard makers who have a huge insulated box, and a conveyor, and temperature regulators with a big array of lights but it probably is not easy or cheap to do this.