Caliper Paint Question ?
Thread Starter
Pro
Joined: Feb 2006
Posts: 502
Likes: 1
From: Schwenksville PA
Caliper Paint Question ?
I started with rear pass first and after 2 coats on the caliper its blotchy.
I cleaned with brake cleaner then used my wire wheel on bench grinder. Painted with Duplicolor red caliper paint. same process on bracket except in black, no problem.
do you have to prep aluminum differently ?
thanks for the help.
I cleaned with brake cleaner then used my wire wheel on bench grinder. Painted with Duplicolor red caliper paint. same process on bracket except in black, no problem.
do you have to prep aluminum differently ?
thanks for the help.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,840
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
I started with rear pass first and after 2 coats on the caliper its blotchy.
I cleaned with brake cleaner then used my wire wheel on bench grinder. Painted with Duplicolor red caliper paint. same process on bracket except in black, no problem.
do you have to prep aluminum differently ?
thanks for the help.
I cleaned with brake cleaner then used my wire wheel on bench grinder. Painted with Duplicolor red caliper paint. same process on bracket except in black, no problem.
do you have to prep aluminum differently ?
thanks for the help.
Team Owner
Joined: Oct 2006
Posts: 20,393
Likes: 431
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17
NCM Member '09
I've done 5 sets without primer, each time with Dupli-Color. Are you using the spray or brush-on version? I've only used the brush-on, and they always came out great.
Race Director
Joined: Jul 2007
Posts: 18,681
Likes: 47
From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
I used brush on with no primer and still looks great after 3 plus years, I did thin the paint before I used it and it went on great.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,840
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
I know several people who have had this same problem, even with light coats. I think the problem may be from getting the caliper contaminated with a tire shine or silicon that gets absorbed into the caliper. For some cleaning and primering was the only successful
solution.
Some people spray their wheels wells with a rubber silicone treatment to make them shiny.. over time this spray application prior to painting the calipers make it almost impossible to get paint to adhere. People say its like giant fish eyes.
solution.
Some people spray their wheels wells with a rubber silicone treatment to make them shiny.. over time this spray application prior to painting the calipers make it almost impossible to get paint to adhere. People say its like giant fish eyes.
Last edited by Evil-Twin; Jan 12, 2014 at 03:24 PM.
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Melting Slicks
Joined: Aug 2010
Posts: 2,855
Likes: 78
From: Sammamish WA
WA Events Coordinator
When I did my M3 years ago, I used lots of brake cleaner, the followed up with a good lacquer thinner. Always did the same when prepping disc rotor hats for paint also, though now they all come cadmium plated.
Melting Slicks
Joined: Jul 2006
Posts: 2,332
Likes: 31
From: Silver Spring MD
You need 4 or 5 coats with only about 30 minutes between coats
After cleaning thoroughly with brake cleaner and a wire brush I applied about 5 coats of brush on Duplicolor Caliper Paint. First 2 or 3 coats looked washed out. After 4 looked better. 5 or more look great.
No primer needed and the box says if you wait more than an hour you must wait 24 hours before applying additional coats.
Had the calipers off and pads off as I was changing pads but never disconnected the brake lines.
Waited a full 24 hours before reassembling. Did a little scratching doing this and used a little more paint to touch up the scratches.
Used white touch-up paint on front pad CORVETTE letters.
They still look great 5 years later.
No primer needed and the box says if you wait more than an hour you must wait 24 hours before applying additional coats.
Had the calipers off and pads off as I was changing pads but never disconnected the brake lines.
Waited a full 24 hours before reassembling. Did a little scratching doing this and used a little more paint to touch up the scratches.
Used white touch-up paint on front pad CORVETTE letters.
They still look great 5 years later.