Why would you want to coat a brake caliper with insulating material - wouldn't that keep the heat IN the caliper and boil your fluid???

You surely couldn't insulate the piston side....
Better question (though not necessarily cost effective) - has anyone either coated the backside of their brake PADS, or coated spacers to reduce the heat to the brake fluid?

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Dave Youngren
NER ITA RX7 #61