Exhaust winter rust proofing

[yotahed]

Well I kinda discovered by accident, that rubberized rock guard (Canadian Tire Rattle Can) is a very viable option to coat an exhaust with. I blasted mine and thought it might melt off, but after smoking and cooking it on, it cured very nicely. Hasnt cracked off or peeled or anything.. I was quite suprised. It's pretty sweet because the amount of salt and sand they lay down on the roads in the winter will rust an exhaust out pretty fast. Ill post a pic of the brand that I used, since there's a few different kinds and some arent as good as others, differnt compound/drying/curing characteristics.

anyways just for interest.

 

[Estancio]

Each fall I used to carefully re-paint my exhaust system, in particular the muffler, in preparation for Alberta winters. Tremclad high temp enamel from CanTire was best I could find. Eastwood special high temp paint was absolute crap. Glad to hear there might be a new alternative -- even though my BJ70 and I no longer suffer those harsh winters.

Exactly how much of the exhaust system did you "paint."

 

[ForealBoreal]

I'm hoping 304 SS will be the best solution for a vehicle driven 12 months a year.
We will see how it survives. If its starts corroding and getting gross I will be slathering BBQ Paint on it.

 

[Devils Paw 80]

Does it really help to paint the exterior? Exhaust guys tell you that the pipes rust from the inside out.
Also, I didn't know BC salted their roads....

 

[carpet]

I was under the impression that condensation on the inside of the exhaust would rust it inside out, but salt on the roads would defiantly rust it from the outside. Glad I don't have to deal with that here in oz.

 

[Estancio]

Diesel engined exhaust are usually coated on the inside with so much oily residue that they are naturally rust-proof from the inside. On diesels, only worry should be the exteriors of exhaust system.

 

[ForealBoreal]

I have also heard that diesel exhaust us quite corrosive.

 

[yotahed]

At first I actually only painted a section that left the front wheel well to test it, after overspraying a bit while coating my inner fender wells.
I was a bit hesistant becasuse of the rubber content and figured it might just melt and crack off.
It smoked for a bit and stunk like hell. But after a couple drives it cooked on very nicely. So thats when i did the whole thing. Mines just a shorty that leaves in front of the rear right Wheel well.

 

[John Galt]

At first I actually only painted a section that left the front wheel well to test it, after overspraying a bit while coating my inner fender wells.... Mines just a shorty that leaves in front of the rear right Wheel well.

Good idea since that's the section that gets the most abrasion from road dirt. I'll try that next time it's warm enough to paint.