[SEL] OT OT - question about heating master cylinder casting

[bill at antique-engines.com]

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CAR RELATED

What will heating a master cylinder casting to 450 degrees do to it?
Anything bad?

I've decided to powdercoat the master cylinder when I get my project car
back from the painter dude. It's supposed to be semi-gloss black, as is
the lid. We all know what brake fluid does to paint..........

To powdercoat, the cleaned casting needs to be preheated to 450 to bake
off impurities and such, then you cool it and coat it with the powder,
then put it in the oven at 450 until the powder melts then let it bake at
400 for 20 minutes.
I'll strip all the guts out of it, the residual check valve for the rear
brakes, the pistons/cups and such, but was wondering if baking a master
cylinder casting at 450 degrees will do any harm to the thing??

My son and I have repainted most of the emblems, replacement parts have
been ordered. Many items have already been painted or powdercoated (got
some krinkle black to try on my Maytag twin!) the glass is all out and
cleaned up and patch panels welded into place and finished off.