I'm thinking of building up some armor pieces using Sintra as a base and contouring a couple pieces with some sort of filler.
Will Bondo melt Sintra? Is there some other type of filler that's more flexible and won't crack? For a particular piece that might be subject to getting flexed as you wear it, I was worried that the bondo might crack.
I might just use the filler to make the master and have a mold cast from that so then I won't have to worry about the bondo cracking. Thoughts?