VHT or Epoxy?

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VHT or Epoxy?

20 Sep 2026 12:39
#927740
Getting ready to repaint my engine.(Its out of the frame,completely assembled). I originally did a nice job with PJ1 but managed to spill petrol on it before I could start it up and cure it.Things went down hill from there and its been a complete mess since.
 I've been looking at VHT, that seems to be the popular choice but the curing process is a bit of a challenge (no faith in curing with the engine in frame anymore) and then I came across a 2 component,high temp epoxy engine paint which is a lot more expensive but doesn't need heat curing.
 So, I'm looking for opinions or ideas on which is the best way to go.If anyone has experience with the epoxy I would love to hear about it.
 Thanks in advance

P.S. its understood that stripping the engine down,blasting and painting the individual parts is the best method and that prep is 90% of a good paint job and that proper PPE needs to be used.
 
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  • Wookie58
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Re: VHT or Epoxy?

20 Sep 2026 14:03
#927741
The Cerekote I mentioned previously is “air dry” and fully cured after a week my motor hasn’t been run yet and has had petroleum and brake fluid spilt on it without issue 

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Re: VHT or Epoxy?

21 Sep 2026 14:05
#927773
The Cerekote I mentioned previously is “air dry” and fully cured after a week my motor hasn’t been run yet and has had petroleum and brake fluid spilt on it without issue 
 
I was looking at that but the website is very complicated and unclear.It seems the base metal needs to be blasted and It doesn't seem to be for sale in an aerosol can. Am I wrong?
www.kzrider.com/forum/11-projects/594313-csr1000-project-build
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Re: VHT or Epoxy?

21 Sep 2026 16:11
#927778
No you’re not wrong, it has to be applied with a spray gun to bare metal (blasted surface is ideal)

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Re: VHT or Epoxy?

22 Sep 2026 04:10
#927789
   Would the epoxy be thick enough to resist heat transfer & reduce cooling?

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Re: VHT or Epoxy?

22 Sep 2026 23:07
#927818
   Would the epoxy be thick enough to resist heat transfer & reduce cooling?

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slmjim & Z1BEBE
 
I assume so. Its engine paint. I don,t know much about it yet. I saw it on a website a few weeks ago (German,I think). I've got to find it again.I posted the same question on a couple of facebook groups and someone said he uses it on landrover engines in his work. Thats all the info he gave,so I'm asking here if anyone has used it before and whats the skinny?
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Re: VHT or Epoxy?

23 Sep 2026 10:07
#927826
   Would the epoxy be thick enough to resist heat transfer & reduce cooling?

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slmjim & Z1BEBE

 
I assume so.
I think you have misunderstood. Resisting heat transfer and reducing cooling will mean a hotter running engine. I am pretty sure you do not want that. slmjim & Z1BEBE are asking if the epoxy paint will be so thick that it acts like an insulator, keeping heat inside the engine.
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Re: VHT or Epoxy?

23 Sep 2026 11:32
#927831
Yes. Right.Sorry. I have no idea. Engine paint is engine paint surely? I don't imagine that it would cause the engine to run too hot. I am now going to look for the website I found before. Wish me luck.
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Re: VHT or Epoxy?

23 Sep 2026 13:11 - 23 Sep 2026 13:17
#927835
Of course. Can't find it. I did find this though,which might be interesting;
www.eastwood.com/eastwood-2k-aerospray-h...mic-gloss-black.html
Urethane? Ceramic? How can it be both? What are they talking about? Ha! just read a separate review. They call it a  Ceramic Engine 'Enamel.'
 I,m getting lost in terminology here. Further research is needed.
 
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XT 600E (1999)
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Last edit: 23 Sep 2026 13:17 by davido.

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Re: VHT or Epoxy?

23 Sep 2026 13:53 - 23 Sep 2026 13:54
#927837
FWIW Eastwood coatings have a good reputation and the 2K (i.e. Zwei-Komponenten or 2 component) coatings* have a pretty good reputation as well

* in general, not just Eastwood
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Last edit: 23 Sep 2026 13:54 by Nerdy.

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