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Old 10-25-2020, 02:04 AM   #1
Greasey Harley
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Clear coat on a new master cylinder

I just put a brake master cylinder in my 73 Jimmy. After thoroughly cleaning it, I applied 2 coats of clear coat (like I always do) before bench bleeding it.
It occurred to me, not everybody realizes this is an option.
I have been clear coating new master cylinders for ...20 years, maybe?
I thoroughly clean the outside of the master cylinder with brake clean, let it dry, and spray it with 2 coats of clear spray paint.
It ain't perfect, but it does add some level of rust prevention.
I have had master cylinders that were [at least] 5 years old with almost zero rust.
Anyways just thought I'd share that tip.

Results may vary

-Russ
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Old 10-25-2020, 08:47 AM   #2
blazer2007
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Re: Clear coat on a new master cylinder

doesn,t the brake fluid eat the clear ?
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Old 10-25-2020, 10:25 AM   #3
jayoldschool
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Re: Clear coat on a new master cylinder

Only if you spill the brake fluid ;-)

I cleared the natural aluminum intake on one of my 350s 25 years ago. Still looks great.
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Old 10-25-2020, 04:41 PM   #4
LS short box
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Re: Clear coat on a new master cylinder

Clear coated many iron masters even back in the day when I was a tech at a Chev dealer ship. The service manager gave me the tip. If you get some brake fluid on it its easy to clean and touch up. Rusty masters are not pretty.
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Old 10-25-2020, 05:37 PM   #5
MySons68C20
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Re: Clear coat on a new master cylinder

I clear coated my original 307 valve covers on my first 68 42 years ago and they never had a hint of rust.
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Old 10-25-2020, 09:33 PM   #6
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Re: Clear coat on a new master cylinder

I used Eastwood master cyl paint on mine..also painted my calipers with it as wel.so far it still looks good..has a raw cast iron look to it..
Never thought about using just clear...
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Old 10-26-2020, 03:11 PM   #7
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Re: Clear coat on a new master cylinder

I shot mine with SPI epoxy. Its only had fluid in it for a few months and I don't think I spilled any but it looks great.
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Old 11-09-2020, 12:21 PM   #8
SunSoaked
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Thumbs up Re: Clear coat on a new master cylinder

I prefer the "patina" look, lol.
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Old 11-10-2020, 11:23 AM   #9
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Re: Clear coat on a new master cylinder

Quote:
Originally Posted by SunSoaked View Post
I prefer the "patina" look, lol.
Yeah.... But AZ has that "dry-heat" so it's only 'patina' out on the West Coast LoL.
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Old 11-12-2020, 08:48 PM   #10
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Re: Clear coat on a new master cylinder

Use cast blast on iron parts . Summit valve covers are what my builder puts on to dino I've changed them since
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