RE: caliper brake piston rust prevention

["Randall" <tr3driver@comcast.net>]

> Would it be a smart thing to apply POR-15 to only a small part of the
> caliper brake PISTON'S (on only the inside of the cup-like bottom) as this
> spot is so prone to rust but yet doesn't touch anything?

I sure wouldn't.  Glycol brake fluid will attack paint, so the POR 15 will
contaminate it.  And if you use silicone brake fluid, the piston won't rust (and
neither will anything else in the brake hydraulics).

Randall


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