Quick HI-Temp Paint Question
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Quick HI-Temp Paint Question
Gonna paint trans and oil pan with hi-temp paint after replacing weeping gaskets. Is a primer necessary. If so, should it be hi-temp? :confused: I've tried the local auto parts stores and did not see one primer that specified hi-temp. :cry :cheers: :cheers: thanks as always!!
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Re: Quick HI-Temp Paint Question (Silvr77)
There is a Hi-temp engine enamel primer... I just started using it. No conclusion yet.
Pay strict attention to the curing instructions on the can..... if you do not follow them, the paint will fall off.
Also... any oil or rust at all will cause a very short lifespan for the paint. If there is any rust, I sandblast the stuff before I paint it.
Edit: Plasticote #228 Gray Primer (enamel, 500 degree)
[Modified by Tom454, 5:25 AM 1/23/2002]
Pay strict attention to the curing instructions on the can..... if you do not follow them, the paint will fall off.
Also... any oil or rust at all will cause a very short lifespan for the paint. If there is any rust, I sandblast the stuff before I paint it.
Edit: Plasticote #228 Gray Primer (enamel, 500 degree)
[Modified by Tom454, 5:25 AM 1/23/2002]
Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Re: Quick HI-Temp Paint Question (Tom454)
Thank you Tom. :D None of the local shops carry this stuff, cause I asked. I'll check a few local auto paint places during the day while their open. (wish they all had evening hours) :yesnod: :yesnod:
Melting Slicks
Joined: Dec 2000
Posts: 3,242
Likes: 0
From: Lexington, North Carolina
Re: Quick HI-Temp Paint Question (Silvr77)
Can I add a question here?
Has anybody ever had any luck painting headers or exhaust manifolds with a high temp paint?
Thanks!
-John
Has anybody ever had any luck painting headers or exhaust manifolds with a high temp paint?
Thanks!
-John
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Re: Quick HI-Temp Paint Question (JohnS_77)
I have had luck by doing the following:
1) Sandblast the manifolds until there is absolutely no sign of rust what-so-ever
2) Wire wheel them to take off the "fluff" produced by sandblasting
3) Wipe them down with lacquer thinner until a clean paper towel comes back clean after wiping.
4) Apply the paint... hang the manifolds with something tough to take the weight. (I use pipe hangers from an autoparts store)
5) Bake in the oven to cure.... per directions.... this is the key (my wife hates this part).
6) Let hang for about 3 days before handling
If you don't do it this way, the stuff flakes off.
Also... the current 500 degree paint needs to cure as well.... and it will lift if you add additional coats too soon, or if you apply a heavy second coat even after it air cures.
Tom
[Modified by Tom454, 11:32 AM 1/23/2002]
1) Sandblast the manifolds until there is absolutely no sign of rust what-so-ever
2) Wire wheel them to take off the "fluff" produced by sandblasting
3) Wipe them down with lacquer thinner until a clean paper towel comes back clean after wiping.
4) Apply the paint... hang the manifolds with something tough to take the weight. (I use pipe hangers from an autoparts store)
5) Bake in the oven to cure.... per directions.... this is the key (my wife hates this part).
6) Let hang for about 3 days before handling
If you don't do it this way, the stuff flakes off.
Also... the current 500 degree paint needs to cure as well.... and it will lift if you add additional coats too soon, or if you apply a heavy second coat even after it air cures.
Tom
[Modified by Tom454, 11:32 AM 1/23/2002]
Melting Slicks
Joined: Jan 2000
Posts: 2,386
Likes: 3
From: far, far away
Re: Quick HI-Temp Paint Question (JohnS_77)
I used PlastiKote Hot Paint on my exhaust manifolds. They look great, something like 7 years and over 30K miles later. I used silver, and I think it's available in black and white, also.
I had the manifolds bead-blasted at my local machine shop. That cost something like $10, maybe $15, I can't recall for sure. It wasn't alot. Then I solvent-cleaned them many, many times. After spraying the paint, using several very light coats (the first coat is really just a light fog), and an hour or so of drying time, they went into my kitchen oven at 500 degrees for awhile. I can't remember exactly what the can says, maybe an hour or two?
With exhaust manifolds, you could install them and then drive to get them hot enough to cure the paint, if you don't want to stink up your kitchen (it will!). It's very similar to powder coating. If you don't bake this paint on, it will simply rub off in a powder form after it dries.
Good luck! :seeya
I had the manifolds bead-blasted at my local machine shop. That cost something like $10, maybe $15, I can't recall for sure. It wasn't alot. Then I solvent-cleaned them many, many times. After spraying the paint, using several very light coats (the first coat is really just a light fog), and an hour or so of drying time, they went into my kitchen oven at 500 degrees for awhile. I can't remember exactly what the can says, maybe an hour or two?
With exhaust manifolds, you could install them and then drive to get them hot enough to cure the paint, if you don't want to stink up your kitchen (it will!). It's very similar to powder coating. If you don't bake this paint on, it will simply rub off in a powder form after it dries.
Good luck! :seeya
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Thread Starter
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Re: Quick HI-Temp Paint Question (paul79)
GM engine paint from the dealer. Works very well.