Darth,

Yeah, that is the resin I was using, or at least the same hardener drop ratio. The second layer I did with more hardener and it set up in a much more reasonable amount of time. As long as there is no harm, I will use a bit more hardener for the final coat to get things moving more quickly.

On another note I am trying to make some sort of exhaust tube similar to those discussed here. I have had no luck attaching the Al tube to the muffler. Has anybody done this and had it last for a while? I was trying silver solder, “solders any metal!”, and that didn’t work at all.

Spiro