What VHT paint for heat exchangers?

[Bobster]

Got some new heat exchangers to fit to my bus but it looks like they’re just coated in a shipping primer.

Can anyone recommend a VHT paint they’ve used with success, did they cure it etc ?

It will be a problem to cure them on the bus as the new engine is being built so was wanting to prep these for build up

 

[Webbaldo]

Cant recommend a specific brand, but strip the packing paint/primer first.

Even with the best VHT paint, if the packing paint is still on, it'll bubble and wreck the top VHT coating. Just wirewheel or blast it off.

I fell for this and despite using a posh brand, curing it with a heatgun, it all flaked off within a few month due to the crappy paint under the vht. Rookie mistake really

 

[Bobster]

Cheers webbaldo, good call ... another job to look forward too