Pennock's Fiero Forum
  General Fiero Chat
  High Temp paint

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
High Temp paint by 85fieroguy
Started on: 09-21-2015 10:11 PM
Replies: 11 (260 views)
Last post by: rogergarrison on 09-26-2015 11:39 AM
85fieroguy
Member
Posts: 301
From: Chicago
Registered: Aug 2015


Feedback score: N/A
Leave feedback

Rate this member

Report this Post09-21-2015 10:11 PM Click Here to See the Profile for 85fieroguySend a Private Message to 85fieroguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
Finished doing the exhaust manifold gasket..removed a lot of heat shields, etc. Cleaned, primed and used VHT sparay paint, all went well EXCEPT..the exhaust manifold is stainless and the paint burned of. WHY ???..the rest of the parts are fine.
IP: Logged
PFF
System Bot
RayOtton
Member
Posts: 3459
From: Cape Charles, VA, USA
Registered: Jul 2012


Feedback score: N/A
Leave feedback





Total ratings: 54
Rate this member

Report this Post09-22-2015 10:24 AM Click Here to See the Profile for RayOttonClick Here to Email RayOttonSend a Private Message to RayOttonEdit/Delete MessageReply w/QuoteDirect Link to This Post
Odd. I've had that paint on my ported exhausts for 2 years without any peeling or burning.

Maybe improper surface treatment before application?

I cleaned mine twice. First with mineral spirits and then acetone.
IP: Logged
rogergarrison
Member
Posts: 49601
From: A Western Caribbean Island/ Columbus, Ohio
Registered: Apr 99


Feedback score: N/A
Leave feedback





Total ratings: 552
Rate this member

Report this Post09-22-2015 11:57 AM Click Here to See the Profile for rogergarrisonClick Here to Email rogergarrisonSend a Private Message to rogergarrisonEdit/Delete MessageReply w/QuoteDirect Link to This Post
If you talking about stock exhaust manifolds on 2.8, Ive never found anything that stays on them for over a few weeks at most. I even tried some jet engine paint we used to use around the exhaust/ afterburners. Also didnt work. Maybe powder coating with heatproof coating would work, to much to bother with for me.
IP: Logged
hyperv6
Member
Posts: 5585
From: Clinton, OH, USA
Registered: Mar 2003


Feedback score: N/A
Leave feedback





Total ratings: 91
Rate this member

Report this Post09-22-2015 07:31 PM Click Here to See the Profile for hyperv6Send a Private Message to hyperv6Edit/Delete MessageReply w/QuoteDirect Link to This Post
I have some paint that I had two cans off and it is nearly gone. It would stay on for long periods of time. But it is not made anymore and I find most of todays paint will stay on but it will grey out.

I suspect the ceramic coating and added heat just do not like the stainless.

I may try some Por 15 exhaust manifold paint when I run out of the other stuff. I really should experiment now on lower parts of the exhaust to see how it hold up.
IP: Logged
2.5
Member
Posts: 41929
From: Southern MN
Registered: May 2007


Feedback score: (1)
Leave feedback





Total ratings: 180
Rate this member

Report this Post09-23-2015 09:10 AM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Runnig lean? Timing? Part hotter then the paint will take?
I believe VHT has some crazy heat cycles you are supposed to put it through to cure it.

I like Rustoleum "grill paint".

Also POR 20.

[This message has been edited by 2.5 (edited 09-23-2015).]

IP: Logged
bkw88
Member
Posts: 274
From: Homer MI
Registered: Dec 2008


Feedback score: N/A
Leave feedback

Rate this member

Report this Post09-23-2015 04:00 PM Click Here to See the Profile for bkw88Click Here to Email bkw88Send a Private Message to bkw88Edit/Delete MessageReply w/QuoteDirect Link to This Post
Very odd. I would say the manifolds weren't clean of any grime. I have painted all kinds of exhaust, including many Fiero manifolds and y pipes. Never had an issue. My guess is contamination.
Brian
IP: Logged
85fieroguy
Member
Posts: 301
From: Chicago
Registered: Aug 2015


Feedback score: N/A
Leave feedback

Rate this member

Report this Post09-23-2015 10:47 PM Click Here to See the Profile for 85fieroguySend a Private Message to 85fieroguyEdit/Delete MessageReply w/QuoteDirect Link to This Post
The exhaust manifolds were perfectly clean, degreased, walnut blasted, and the only thing I did was use high temp VHT red paint, 2 light coats. The guy at the store said I didn't need a VHT primer. Every other piece of the exhaust, heat shield etc is fine, just the exhaust manifold look " gray", yet the brackets for the bolts to attach to the engine body are red... What gives/
IP: Logged
hyperv6
Member
Posts: 5585
From: Clinton, OH, USA
Registered: Mar 2003


Feedback score: N/A
Leave feedback





Total ratings: 91
Rate this member

Report this Post09-24-2015 07:16 AM Click Here to See the Profile for hyperv6Send a Private Message to hyperv6Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 2.5:

Runnig lean? Timing? Part hotter then the paint will take?
I believe VHT has some crazy heat cycles you are supposed to put it through to cure it.

I like Rustoleum "grill paint".

Also POR 20.



Generally most paints have things you need to do but no one reads the cans.

Even Ceramic coating need cycles and most people with new engines kill them breaking the engine in with the new headers on. You need to do heat cycles but when you break the engine in you can not do that. We recommend break in headers or old set of headers but few people do that.

IP: Logged
RayOtton
Member
Posts: 3459
From: Cape Charles, VA, USA
Registered: Jul 2012


Feedback score: N/A
Leave feedback





Total ratings: 54
Rate this member

Report this Post09-24-2015 07:50 AM Click Here to See the Profile for RayOttonClick Here to Email RayOttonSend a Private Message to RayOttonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I forgot to mention that I baked the manifolds after painting. Started at 300 degrees, increased by 50 degrees every half hour all the way up to the oven's max of 500 degrees. While the wife wasn't home, of course, because it did out gas quite a bit.

No peeling has occurred, just a little brownish discoloration where the manifolds bolt to the block.

I've also sold four sets of ported manifolds treated the same way and haven't had any complaints.
IP: Logged
Formula88
Member
Posts: 53788
From: Raleigh NC
Registered: Jan 2001


Feedback score: (3)
Leave feedback





Total ratings: 555
Rate this member

Report this Post09-24-2015 08:25 AM Click Here to See the Profile for Formula88Send a Private Message to Formula88Edit/Delete MessageReply w/QuoteDirect Link to This Post
Directions for applying VHT FlameProof™ Coating

On the Vehicle
•Paint must be completely dry before curing
•Run at idle for 10 minutes
•Cool for 20 minutes
•Run at idle for 20 minutes
•Cool for 20 minutes
•Run under normal operating conditions for 30 minutes

Off the Vehicle
•Paint must be completely dry before curing
•Heat to 250°F (121°C) for 30 minutes
•Cool for 30 minutes
•Heat to 400°F (204°C) for 30 minutes
•Cool for 30 minutes
•Heat to 650°F (343°C ) for 30 minutes
IP: Logged
RayOtton
Member
Posts: 3459
From: Cape Charles, VA, USA
Registered: Jul 2012


Feedback score: N/A
Leave feedback





Total ratings: 54
Rate this member

Report this Post09-24-2015 10:20 AM Click Here to See the Profile for RayOttonClick Here to Email RayOttonSend a Private Message to RayOttonEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks for the reminder, I was off on some of those figures I posted.

FWIW, I followed the instructions except I could only get to 550 degrees.

Worked just fine.
IP: Logged
PFF
System Bot
rogergarrison
Member
Posts: 49601
From: A Western Caribbean Island/ Columbus, Ohio
Registered: Apr 99


Feedback score: N/A
Leave feedback





Total ratings: 552
Rate this member

Report this Post09-26-2015 11:39 AM Click Here to See the Profile for rogergarrisonClick Here to Email rogergarrisonSend a Private Message to rogergarrisonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I knew a guy that rebuilt Mopar engines locally. He painted them with regular spray can paint the oem color, then went all around it and heated it with an acetylene torch to 'cure' it. They seemed to last pretty well on cars I still see at shows all the time.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock