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Paint over ceramic header coating? #1197432 03/15/12 10:51 AM 03/15/12 10:51 AM
Joined: Mar 2006 Posts: 200 Maryland M mrob OP enthusiast
mrob OP enthusiast M Joined: Mar 2006 Posts: 200 Maryland	I know I'm being a cheap-ass, but has anyone had any luck painting over the ceramic coating on headers? Why may you ask - because the ceramic coating on my Hooker 5903 headers now has small rust pimples (especially around part where the header flange and pipes meet). I'm not looking for anything perfect, but would a high-temp paint stick to the ceramic coating or am I just wasting my time?

Re: Paint over ceramic header coating? [Re: mrob] #1197433 03/15/12 10:52 AM 03/15/12 10:52 AM
Joined: Nov 2005 Posts: 15,118 85086 moparpollack Lil Herman
moparpollack Lil Herman Joined: Nov 2005 Posts: 15,118 85086	Good question actually... 56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d

Re: Paint over ceramic header coating? [Re: moparpollack] #1197434 03/15/12 10:57 AM 03/15/12 10:57 AM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	It'll stick until it slides off....... Seriously, give it a try. It just might work. R.

Re: Paint over ceramic header coating? [Re: mrob] #1197435 03/15/12 12:24 PM 03/15/12 12:24 PM
Joined: Aug 2007 Posts: 1,564 St. Clair Shores, Michigan bigsbigelow pro stock
bigsbigelow pro stock Joined: Aug 2007 Posts: 1,564 St. Clair Shores, Michigan	Prep them just like you would painting bare headers and you will be fine. Ryan "Bigs" '73 Duster (BLKDUST) - Black, 100% factory sheet metal, flat hood, 346 cid, J Heads, and a bench seat. http://s268.photobucket.com/albums/jj1/bigsbigelow/ Best to date: 12.40 @ 109 mph

Re: Paint over ceramic header coating? [Re: mrob] #1197436 03/15/12 04:33 PM 03/15/12 04:33 PM
Joined: Mar 2006 Posts: 200 Maryland M mrob OP enthusiast
mrob OP enthusiast M Joined: Mar 2006 Posts: 200 Maryland	One reason I think it may work is because some overspray is still sticking to the collectors from when the car was painted. That's not high temp paint - just a catalyzed urethane auto paint. It hasn't peeled or blistered off in about 2 years. One guy replied back that I should prep as though the headers were bare. I usually scuff bare metal tubes with a Scotchbrite pad, clean them really well and then shoot them with high temp paint. Same thing for the ceramic coating? Don't know how hard that coating really is. Maybe it would be better to lighty sandblast?

Re: Paint over ceramic header coating? [Re: mrob] #1197437 03/15/12 04:38 PM 03/15/12 04:38 PM
Joined: Nov 2011 Posts: 2,154 Its a TRAP! DARTH V8Я Oh No!! I just had a moron attack!
DARTH V8Я Oh No!! I just had a moron attack! Joined: Nov 2011 Posts: 2,154 Its a TRAP!	Barbeque paint, works like a charm, stick to anything w/ minimal prep, and its rust resistant too.

Re: Paint over ceramic header coating? [Re: mrob] #1197438 03/16/12 08:17 AM 03/16/12 08:17 AM
Joined: Aug 2007 Posts: 1,564 St. Clair Shores, Michigan bigsbigelow pro stock
bigsbigelow pro stock Joined: Aug 2007 Posts: 1,564 St. Clair Shores, Michigan	Quote: One reason I think it may work is because some overspray is still sticking to the collectors from when the car was painted. That's not high temp paint - just a catalyzed urethane auto paint. It hasn't peeled or blistered off in about 2 years. One guy replied back that I should prep as though the headers were bare. I usually scuff bare metal tubes with a Scotchbrite pad, clean them really well and then shoot them with high temp paint. Same thing for the ceramic coating? Don't know how hard that coating really is. Maybe it would be better to lighty sandblast? Try the Scotch-Brite. I usually start with something like ~120 grit to scuff bare metal. All you need is enough scuff for the paint to mechanically bond to but if you use high temp paint, it will need to "bake on" (the first time you run the engine) to cure anyways. Ryan "Bigs" '73 Duster (BLKDUST) - Black, 100% factory sheet metal, flat hood, 346 cid, J Heads, and a bench seat. http://s268.photobucket.com/albums/jj1/bigsbigelow/ Best to date: 12.40 @ 109 mph

Re: Paint over ceramic header coating? [Re: mrob] #1197439 03/16/12 10:34 AM 03/16/12 10:34 AM
Joined: Nov 2004 Posts: 7,274 s.w.fl B bonefish master
bonefish master B Joined: Nov 2004 Posts: 7,274 s.w.fl	Quote: One reason I think it may work is because some overspray is still sticking to the collectors from when the car was painted. That's not high temp paint - just a catalyzed urethane auto paint. It hasn't peeled or blistered off in about 2 years. One guy replied back that I should prep as though the headers were bare. I usually scuff bare metal tubes with a Scotchbrite pad, clean them really well and then shoot them with high temp paint. Same thing for the ceramic coating? Don't know how hard that coating really is. Maybe it would be better to lighty sandblast? OVERSPRAY sticks to anything its not supposed to be on regardless of the surface.

Re: Paint over ceramic header coating? [Re: bonefish] #1197440 03/16/12 12:37 PM 03/16/12 12:37 PM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	If you wrap your headers, you can soak the wrap with high temp paint and it makes the wrap into one piece that won't fray. Tim

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