VHT coating?
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Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
VHT coating?
Was wondering if anyone has had any luck with the VHT ceramic spray on coating? I was considering spraying my exhaust pipe from the end of the headers all the way back. That way they wont rust or look like crud when they start rusting. The stainless pipe my shop used for the current exhaust is rusting in places. No idea why makes no sense... But for the 445 Im doing all new exhaust back and seeing the stainless apparently isn't 100% stainless id like to coat it with something silver.
Elder User
Joined: Sep 2012
Posts: 654
Likes: 2
From: The Lone Star State
Well there's different flavors of stainless and its usually the contaminated carbon steel that gets on your stainless that will start it. 400 series is not as corrosion resistant as 300 series. If your tools have touched carbon steel and then you rub it on your stainless items, you'll get rust.
Regarding the spray, if you are talking about something from an aerosol can then I've heard of "okay" results when it's applied correctly, then baked on (in an oven). If you are just scraping clean and then spraying, I don't think it will last very long.
Regarding the spray, if you are talking about something from an aerosol can then I've heard of "okay" results when it's applied correctly, then baked on (in an oven). If you are just scraping clean and then spraying, I don't think it will last very long.
Thread Starter
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Fleet Mechanic
Joined: Jun 2011
Posts: 1,804
Likes: 5
From: Southern California
Well there's different flavors of stainless and its usually the contaminated carbon steel that gets on your stainless that will start it. 400 series is not as corrosion resistant as 300 series. If your tools have touched carbon steel and then you rub it on your stainless items, you'll get rust.
Regarding the spray, if you are talking about something from an aerosol can then I've heard of "okay" results when it's applied correctly, then baked on (in an oven). If you are just scraping clean and then spraying, I don't think it will last very long.
Regarding the spray, if you are talking about something from an aerosol can then I've heard of "okay" results when it's applied correctly, then baked on (in an oven). If you are just scraping clean and then spraying, I don't think it will last very long.
And well it gives directions on how to do the spray when it wont fit in an oven. And it would be on brand new pipe before I install it so I don't think it would flake off.
Cranky Old Guy
Joined: Mar 2008
Posts: 3,562
Likes: 6
From: Raphine, Virginia
Was wondering if anyone has had any luck with the VHT ceramic spray on coating? I was considering spraying my exhaust pipe from the end of the headers all the way back. That way they wont rust or look like crud when they start rusting. The stainless pipe my shop used for the current exhaust is rusting in places. No idea why makes no sense... But for the 445 Im doing all new exhaust back and seeing the stainless apparently isn't 100% stainless id like to coat it with something silver.
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