DReed86 wrote:So what do you think..... Will the bondo heat up and melt on to calipers or do you know of something else that will work in its place??
Well, at the very least I can appreciate the fact that you're ignoring the criticism and still attempting to get your question answered.
I'm sure you can get a type of bondo that's relatively impervious to heat. Another avenue you might want to consider is a high strength epoxy in just the right places. It'll hold the caliper covers in place really well and won't weigh the whole piece down in doing so. I'm fairly certain I've seen some heat-resistant epoxy in the hardware stores before.
...yet another idea would be to NOT PUT THEM ON IN THE FIRST PLACE!!! I can be tenacious too....... lol
Good luck and let us know which route you choose!