Just make sure you give it as much "tooth" as you can. Let it cure about 1/2 hour than oven cure it at 190°F for an hour and you can start the sanding then, instead of waiting 24hrs to cure like they direct.Thanks....Basically means there are small nicks in forged aluminum parts that could be sanded and feathered out, but I don't want to do that. They are fairly important structural bits and it would be better to just clean up the nicks and fill them with (as you suggested JB weld) rather than remove material. I do have a tin of powdered aluminum filler, but not sure any of the epoxies I have will tolerate the temp. I'll check out the JB weld.