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Author Topic: Suggestion for painting LS exhaust?  (Read 916 times)

Offline SoloLobo

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Suggestion for painting LS exhaust?
« on: April 02, 2015, 11:37:47 AM »
I need to refresh the black paint on my LS's exhaust and see lots of opinions out there on the best product.

What I am looking for is someone who has repainted theirs and had the paint hold up well for several seasons of riding...

Anyone?  Not really looking to go the pro coating route (if possible) and prefer the "do it yourself" route

Offline montmil

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Re: Suggestion for painting LS exhaust?
« Reply #1 on: April 02, 2015, 12:17:16 PM »
Both my R65s had the OEM black mufflers specific to the R65. One pair had a beautiful -what I would describe it as- black chrome finish. Never needed a touchup.

The other R65 had the same design cans but with a matte black paint finish. These I ultimately repainted.

After a very complete wet sanding to remove any imperfections and/or light rust spots, I waited for a mild temperature day with zero wind and low humidity. Set up an awning outside and used heavy dowels in each end of the muffs for support across a pair of saw horses.

Available at most FLAPS, couple rattle cans of high-temp resistant, satin black (not flat black) paint did the job. Multiple medium-light coats with one hour between spray hits produced a quite satisfactory job. Let the muffler fresh paint cure up for several days prior to returning them to service.
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Luca

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Re: Suggestion for painting LS exhaust?
« Reply #2 on: April 02, 2015, 06:21:10 PM »
I did mine with VHT flame proof primer (primer can looks exactly the same as the paint can) and paint.  It's expensive but it can hold up to the heat, even at the headers.

As Monte can tell you, there's no good paint job without good prep work.  I thought I had my exhaust down pretty clean, but I ended up with rust under the paint.  If I had to do it again, I'd etch the metal to clear all the rust.


There's another technique that doesn't hold up nearly as well but it's cheap and work ok... BBQ grill paint.
'82 R65LS
'01 K1200RS