New exhaust rusting

videoguy009 · Posted: Mon Dec 15, 2014 8:16 pm Post subject: New exhaust rusting

I bought a new stock 73 dual exhaust a couple months ago.It is the Dansk duel muffler.It came well primed so I cleaned it and coated it with Rustoleum 1200 degree exhaust paint.It held up for awhile until rust started to form on the surface.The paint did not peel and the rust is easy too wipe off but it keeps returning in different places.Is anyone using something better to prevent this as I think it is stupid to have to keep at it this much to maintain it.I live in eastern Canada where we get rain etc. and not alot of hot,dry weather.I read where one guy wipes his down with WD40 but wouldn't it be a hazard to use it on a hot exhaust.Any help would be welcomed.
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1971 Super Beetle

FV195 · Posted: Tue Dec 16, 2014 8:08 am Post subject:

Wd 40 will help prevent rust, oil will also work, both will smoke and stink but will turn into a rust proof coating after a while. Jet hot coating, very expencive but lasts! Use on my FV exaust. Stainless steel again expencive and no thing exhausts onarket that I know of in SS!

videoguy009 · Posted: Tue Dec 16, 2014 8:16 am Post subject:

Any difference in VHT 2000 deg. and Rustoleum 1200 deg. exhaust paints?
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1971 Super Beetle

germanbilly · Posted: Tue Dec 16, 2014 10:42 am Post subject:

I use the BBQ paint that they sell and have not had any problems with it. It has been on my 74 exhaust for 8 months and is still the same with no rust. But I do live in the High Desert in CA.
GB

perello · Posted: Wed Dec 17, 2014 1:33 am Post subject:

I used hammerite heat paint (or equivalent oxirite in silver color) with decent results.

It's not a definitive solution but will keep your muffler protected all winter
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Aug '58 pressed bumper SO23
1974 German Thing
1978 Bug 1200

cecil · Posted: Wed Dec 17, 2014 9:25 am Post subject:

My headers are Jet Hot coated, however some of my friends use peanut oil with good results. Is this a problem if you're allergic to peanuts?
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I may not be that funny or athletic or good looking or smart or talented....I forgot where I was going with this
I have this wierd desease called "must tear everything up and put it back together when there's nothing wrong with it...Itus."

videoguy009 · Posted: Wed Dec 17, 2014 9:39 am Post subject:

What is the process with the oil.
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1971 Super Beetle

videoguy009 · Posted: Wed Dec 17, 2014 9:46 am Post subject:

I didn't know you could be allergic to something you put on your exhaust.LOL
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1971 Super Beetle

JayC · Posted: Wed Dec 17, 2014 9:59 am Post subject:

I have the same exhaust system. I had a ceramic coating put on and no issues. Certainly more expensive, but figured with what I paid for the exhaust, I didn't want them to rust.

Plus living in Colorado, we barely know what rust is Smile

jay

hobie16 · Posted: Thu Dec 18, 2014 5:27 pm Post subject:

Rust never sleeps.
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Don't be fooled by appearances. In Hawaii, some of the most powerful people look like bums and stuntmen.
--- Matt King

If anything’s going to happen, it’s going to happen out there.
---Captain Ron

NY thing · Posted: Thu Dec 18, 2014 8:12 pm Post subject:

citroen · Posted: Mon Dec 22, 2014 8:05 pm Post subject:

This is how a Bugpack exhaust with their ceramic coating looks like with 21,000 miles and 4 years of use winter and summer use. All I do is give it a little chrome polish every couple of weeks

Image may have been reduced in size. Click image to view fullscreen.

videoguy009 · Posted: Mon Dec 22, 2014 8:10 pm Post subject:

Wow,a very good factory coating for sure.Better than most!
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1971 Super Beetle


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