Mr Fufu

What paint would I use to simulate the proper finish on my master cylinder? Right now it's a bit scabby and rusty.

I have a '67 with stock dual-circuit master cylinder.

Would this Seymour Cast Blast paint provide a good finish for this part?


I also have POR-15 paint that I used on my exhaust manifolds

Would the POR-15 be superior to the Seymour Cast Blast? Would it provide the right color to the finish, and perhaps be more resistant to any brake fluid that might spill on the part?

To recoat I would wire brush off all rust and flaking paint, then clean the metal with lacquer thinner. Would that be sufficient to clean the part and remove any residual brake fluid?

Thanks!,

65GGvert

I used the por 15 manifold gray to paint my 67 master cylinder (on my 65). I painted with a brush, on the car, without wire brushing the m/c first. Por 15 says it bonds better with a little rust, so I took their word. It has lasted almost 3 years with no issue, and the Por 15 can be easily touched up. I did not heat cure it like on the manifold, but simply drove the car. I don't know about "correct look", but I really am satisfied with it.

Nowhere Man

they where black from new expect for the machined parts

Mr Fufu

You mean the master cylinder was painted BLACK at the factory?

I see the proportioning valve next to the MC is painted black on my car (and 65GSVert's too.

Nowhere Man

yes the M/C was black but the cap was gold chromate.


and that is not a proportioning valve but a pressure differential switch

this is very rare Corvette proportioning valve

65GGvert

My car has the wrong master cylinder and has the added valve which I did not want but I'm not going to change it. I painted the valve black myself because it was rusty colored.

facelvega

Before I installed the new cylinder I painted it with an anluminium paint

Vettegeezer

Exactly! I will also add that the black paint appears very thin and of what could be described as flat, not glossy. As you note, the machined pad at the front with the "DC" stamp is unpainted along with the two pads where the brake lines thread into.

woodsdesign

I used SEM trim black on mine. Wire brushed it and wiped it down with thinner first. I did it two years ago and so far it has held up very well.

JrRifleCoach

Youre not serious, right?

Nowhere Man

that’s a J56 set up. How many have you seen

ettev

I used to use Eastwood’s black brake drum paint on the m/c’s I rebuilt.