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#43127 - 04/23/05 1:42 pm Painting old exhaust pipes?  
Joined: Oct 2004
Posts: 25
bitsa110 Offline
BritBike Forum
bitsa110  Offline
BritBike Forum

Joined: Oct 2004
Posts: 25
Far Northern California
I have several sets of TT and stock exhaust pipes.They have surface rust and bluing,to ugly to use,to good to throw away.
What is the best way to save them? Sandblast and barbecue paint? I have heard of ceramic coating.Who does it and at what cost?
Is there a good durable black finish that will not burn off?
Trying to make a silk purse out of a sow`s ear. Mike


`54 T110 Mild Custom
`56 T110 custom,in progress
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#43128 - 04/23/05 9:23 pm Re: Painting old exhaust pipes?  
Joined: Aug 2001
Posts: 1,852
dave - NV Online content
BritBike Forum member
dave - NV  Online Content
BritBike Forum member

Joined: Aug 2001
Posts: 1,852
Elko, Nevada USA
I sandblast, not glass bead blast, both bare steel and chromed pipes and megas for our dirt trackers. Than clean well and paint with black rattle can "header paint", from Checker (Kragens) the local discount auto parts. It's described as "ceramic"(??) and good for up to 1200F. They offer both black and silver colors.
I also have a can of header paint from Eastwood, which is a bit more pricey, that I've not used. Maybe better, I dunno.
After air drying I bake the painted pipes in my shop oven per their specs. Something like 2 hours @ 350 F. I've learned the hard way, as is warned against on the Eastwood can, not to paint too heavy/thick as it will blister when run hot.

Anyhow .. the paint holds up OK, and only discolors with the high heat near the head. But of course it does sand blast off where exposed to the front tire swarf on a dirt tracker. I'm sure the true ceramic coatings would be better, but more expensive.

My .02 worth ...


dave - NV
#43129 - 04/24/05 3:29 am Re: Painting old exhaust pipes?  
Joined: Oct 2004
Posts: 25
bitsa110 Offline
BritBike Forum
bitsa110  Offline
BritBike Forum

Joined: Oct 2004
Posts: 25
Far Northern California
What weight grit should I use for the pipes and frames? I bought a blasting gun a few months back and plan on painting my own frames and pipes this spring.I can no longer afford the cost of powder coating.Can I use the same grit for both?
Mike


`54 T110 Mild Custom
`56 T110 custom,in progress
#43130 - 04/24/05 6:39 am Re: Painting old exhaust pipes?  
Joined: Aug 2001
Posts: 1,852
dave - NV Online content
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dave - NV  Online Content
BritBike Forum member

Joined: Aug 2001
Posts: 1,852
Elko, Nevada USA
I use #30 grit blasting sand from my local builders supply store and it seems to be about right.

Imediately after blasting be sure to acid etch the pieces as the raw metal begins to rust very quickly. I use "Must for Rust", phosphoric acid based etch, scrubbed on with a coarse 'brown' Scotch Bright pad. Don't water rinse and the parts are safe from rusting for a long time if kept dry. The etched surface turns a grey color and is a bit like gun blueing.. But don't oil and for sure don't use anything with silicon on the surface prior to paint.


dave - NV
#43131 - 04/24/05 11:29 am Re: Painting old exhaust pipes?  
Joined: Aug 2001
Posts: 319
LDBennett Offline
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LDBennett  Offline
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Posts: 319
Hesperia, CA
Mike:

Ceramic coating works good and would be perhaps $50 for a set of TT pipes. Prices vary so you'll have to look around. I have found it very durable on our CZ MXer that routes the large expansion chamber under the motor in harms way. It certainly is better than any home applied spray on paint. The choice of colors is huge.

LDBennett

#43132 - 04/24/05 2:28 pm Re: Painting old exhaust pipes?  
Joined: Oct 2004
Posts: 25
bitsa110 Offline
BritBike Forum
bitsa110  Offline
BritBike Forum

Joined: Oct 2004
Posts: 25
Far Northern California
Ceramic coating sounds good,but at $50 times four sets of pipes it gets expensive.I will go with the blast and paint method.
I have muriatic acid which I use to clean soft metals.Would that work for this application?
Mike


`54 T110 Mild Custom
`56 T110 custom,in progress
#43133 - 05/08/05 9:21 pm Re: Painting old exhaust pipes?  
Joined: Jun 2002
Posts: 47
supertrump Offline
BritBike Forum member
supertrump  Offline
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Joined: Jun 2002
Posts: 47
philadelphia
how about simple heat wrap tape?get that racer look,cheap and easy.

#43134 - 05/09/05 11:47 am Re: Painting old exhaust pipes?  
Joined: Aug 2001
Posts: 3,348
BONZO R.I.P. Offline
In Remembrance
BONZO R.I.P.  Offline
In Remembrance

Joined: Aug 2001
Posts: 3,348
Michigan, USA
Mike , I'm sure that baked on rattle can setup will work fine . I think the flat black "TT" pipes with cromed strap clamps at the head and lower mounts look great on a old Brit twin .The jet hot coat exhaust , in that shiny silver , looks great on cars , but I havent seen it on a bike yet , and it costs way too much for me to try it out and not like it. Only thing I might add , if you are using the same aftermarkt head pipes I have always used , you might wanna weld on some mounting tabs before you paint . Nothing special, just somethingthat will make it easyto keep the pipes solidly mounted without a lotta jury rigged looking brackets when you are finished .-BONZO


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