Chassis and High Temp Paint

[planman350i]

Hello, and happy new year!

Just started the task of rust removal on the front part of the chassis (wish I had done this in warmer weather!), as can be seen below:




The worst bit seems to be where the chassis is next to the exhaust manifold and coating has melted due to the excess heat. Which got me thinking - can I apply red oxide primer in these bits before using high heat paint (hammerite - up to 600 degrees C) or am I best just applying the high heat paint alone i.e. will the high temp paint prevent melting off red oxide underneath..?

Any help appreciated.

Cheers

Planman.

[planman350i]

Just bringing the topic up to the top of the list again...

[cuneus]

Since paint layers tend to be very thin I would not put anything underneath

POR-15 do a number of high temp paints

[planman350i]

cuneus said:

Since paint layers tend to be very thin I would not put anything underneath POR-15 do a number of high temp paints

Thanks. I've heard a lot about POR-15, but is it safe to apply in a garage with a basic paint mask..? It sounds like pretty hardcore stuff - don't fancy gassing myself!

[cuneus]

Yep it's fine just wear latex gloves and don't get it in your hair

[shpub]

Some of the high temp paints need to be cured at high temp before they are any good. Bit difficult to heat the chassis up to 200+ deg C so worth reading the labels tyo make sure you get a cold curing type.

[heightswitch]

as an alternative, why not wrap your exhaust manifolds to reduce temps in the area of the chassis rails?

Neil.

[shpub]

heightswitch said:

as an alternative, why not wrap your exhaust manifolds to reduce temps in the area of the chassis rails? Neil.

It rots through the manifolds in about 15 months unless they are a good stainless.