i have an introduction to encaustic painting on july 19th at the silver mine arts center. working with encaustic in the summer heat can be a lot of fun since we can fuse our work by letting the sun's rays heat the surface instead of fusing with a heat gun. it helps to work on several pieces at a time since while one is fusing you can work on another and keep switching them back and forth. hope you give it a try. and just like a black car in the summer absorbs more heat than a white one so will a dark colored painting fuse more quickly.
by the way if you haven't seen sigmar polke's show at moma the show is probably a once in a lifetime chance to see this master of materials range of work from the 60's right thru until his passing.