Protecting a mild steel downpipe

[Winston]

I was going to heat wrap my downpipe but after reading into it there was alot of warnings about fires and it eating mild steel.

If I wrapped and sealed the downpipe would it still be eaten by rust?

Is there anything else I can use to protect it? I know there is ceramic coating but I have a feeling it costs more than my whole exhaust cost to make haha.

Cheers
Winston

 

[Hutchie]

hammerite.

 

[Winston]

Ive painted a Williams downpipe in hammerite. I did it to prove to someone it would just burn off, it didn't just burn it nearly set on fire haha.

 

[Kam.]

dont bother. You paint the outside, it will rot from the inside out...

 

[Hutchie]

i spilt 2k paint on my manifold. bugger wont shift ::S

 

[Winston]

Looks like is going to be left to rot

 

[montana]

what about high temp paint, that can be had pretty cheaply

 

[Winston]

From what ive read on the internet that would burn off within a month.

 

[Gray]

Ceramic coating?

/expensive.

 

[Gally]

Yeah you know how hotan exhuast gets so you know how good the paint needs to be.

I'd wrap it or buy a decent mani.

My one is getting pretty bad but nowhere near holing yet.

 

[Fred@BTM]

From what ive read on the internet that would burn off within a month.

and you believe everything you read on the internet?

 

[Winston]

TBF it was more manifolds that I read it was burning off.. The internetz never lies tho?

So then fred.. Could I spray it inside and out with a good quality VHT paint?

This is on a turbo. I forgot to mention that...

 

[Fred@BTM]

why mild steel?

 

[Martin_172]

i painted my rocker cover with high temp paint 2yrs ago and its still sound, obviously a downpipe suffers much higher temperatures and exposure to the elements than a rocker cover though!

 

[LIL B]

Downpipe wont tend to rust as quick as the rest of gthe system anyway..

But can you not just get one copied in S/s ?

 

[Winston]

My whole exhaust including downpipe & flange cost £150.. The stainless quotes I was getting were more than double that.

We used mild steel because we didn't have a tig welder and mild just kept it simple and cheap.

 

[Fred@BTM]

you could get that aluminumised

 

[Martin_172]

what engine is that out of curiosity?

 

[Winston]

Sorry its not clio... Its Polo G40 engine with a turbo conversion and a 5 GT turbo carb instead of the injection.

Cheers fred I will look into aluminumising. If iirc thats what the pipe work came coated with from jetex?

 

[Martin_172]

Sorry its not clio... Its Polo G40 engine with a turbo conversion and a 5 GT turbo carb instead of the injection.

 

[Fred@BTM]

yeah its looks like the surface has been sandblasted and is rough, its actually molten ali "sprayed" on