[trshman]

Hi Y'all,

Wondering if the power coating process (which I understand can involve heat to cure it) can damage a power brake booster?

Thanks in advance for any responses. Have a great day

[b-man]

They bake the coating from 350 up to 450 F to cure it.

You be the judge.

[242177P]

Originally Posted by trshman

Hi Y'all,

Wondering if the power coating process (which I understand can involve heat to cure it) can damage a power brake booster?

Thanks in advance for any responses. Have a great day

If you have access to a sturdy bench vise, and a length of angle iron, you should be
able to disassemble the booster yourself. Having the case powdercoated (or plated)
after that is pretty straightforward then. Of course if you've gone that far, you might
as well buy a new diaphragm...

[b-man]

Plating the booster halves after disassembly would be the best course of action. The powder coating would chip pretty easily when trying to reassemble the booster.

[242177P]

Originally Posted by b-man

Plating the booster halves after disassembly would be the best course of action. The powder coating would chip pretty easily when trying to reassemble the booster.

Agree. Brake fluid also doesn't care if it's paint or powder coat, it'll eat both of them,
and it'll ask for seconds too!

[roger1]

This replacement booster was a re-manufactured one that came without any finish or plating. I painted it with SPI black epoxy primer.
I don't worry about having one brake fluid proof. I can't think of a time I've ever gotten brake fluid onto a booster before.

[tjs72lemans]

I will say, I repainted mine while on the car. For some reason, when the front end was jacked up, the master cylinder cover (new M.C. and cover) leaked fluid and ran down my booster paint job ruining the finish.

[GT182]

Originally Posted by 242177P

Agree. Brake fluid also doesn't care if it's paint or powder coat, it'll eat both of them,
and it'll ask for seconds too!

LOL... No brake fluid doesn't ask for seconds. It takes whatever it wants when it wants it any time of the day or night. I saw that many times back when I was delivering new cars right out of the GM plants and railyards. The only brake fluid that doesn't eat paint is the silicone type.

So Trshman, if you want to switch over to silicone brake fluid you'll not have brake fluid ruining your paint or powder coating. I did that with my 76 Super Glide years ago and didn't have to worry about the paint being ruined by a leak in the handle bar master cylinder. Didn't have to worry about moisture if the fluid either.

[trshman]

Thank you one and all for your input. That black epoxy primer looks pretty damn good to me. I'm going to go that route.

Have a good day everyone.

[roger1]

The SPI epoxy primer is brake fluid resistant. So if you happen to get any on it, just wipe it off and you will be fine.