Robbieg

I used G2 on my '07. Did it in Dec. '06 still looks like new.

houtex

Oooh, I just thought of something: You should totally grind and polish that steel to a smooth patina, then clear it. Maybe without the roughness, there'll be no water hiding underneath.

And paint it on a low humidity day.

/Or silver G2, that works too.

300GT

It is counterproductive and unnecessary to sand/grind the calipers smooth prior to applying the G2.

Counterproductive in that the epoxy paint needs something to "grab" for proper adhesion - sanding them smooth will increase the likelihood the paint will fail (flake off).

Unnecessary in that the G2 goes on thick and self-levels. By the time you put on the second coat you will have a nice smooth surface as the paint fills in and levels the rough cast surface.

houtex

No, no... EITHER sand/polish them smooth, then paint them clear... OR the G2. Not both, that'd be silly, like you say.

Dan

So should I sand off any rust and paint? What about painting over the clear I applied before....any issues?

Thanks
Danny

houtex

It might be ok to paint over the clear, provided it doesn't flake off. whatever you paint has to stick to whatever's underneath it, and if that's more paint, THAT paint has to stick, and so on.

So if the rust is going to cause the clear to flake off, then the G2 won't stick due to that, not because it won't stick to the clear.

I would start over. You want good adhesion, no questions, or you'll be doin' it over and over. It'd *suck* but it's just brake bleeding. And the car outta commision while you do it, of course.

rony1976

Or get an extra set of calipers, no down time. I'll be selling mine shortly for about $100, front/back

MSgt46270

If you powder coat them you'll have to remove the pistons and seals and most shops won't do that because if the brakes fail, they will get sued. So another option is to have them epoxy coated. Epoxy coating you don't have to remove the pistons or seals at all. You can have them epoxy coated in any color also. I had mine done in black by HardKore Metal Finishing.

Here are some pictures:



Pistons taped over.


Tape removed from pistons


Grabber Orange (Front Calipers)


Rear Calipers