Painting over Hammerite Paint

[JD2012]

I need to paint a garden clothes pole. I have sanded and washed it all down.

The top part though was quite rusty and I had to use wire brush attachment on my drill and sand paper.

Could I use some blue Hammerite Paint that I have as primer before painting? Would it be ok then to just paint over it once it dries with normal metal paint?

The rest of the pole is not to bad so normal metal paint will be fine.

It will be painted black. Its steel not aluminum.

Thanks

 

[johnny2007]

Yes, go ahead.

 

[JD2012]

Yes, go ahead.

I thought it would be fine. Thanks

 

[JohnD]

No, it won't.

What is your reason for wanting to use Hammerite?

 

[Wayners]

No. Do it properly.
Use a metal rust primer.
Hammerite will take weeks to fully cure and harden to allow over painting. Even then you would need to sand to create a key.

 

[JohnD]

Wire brush to remove loose rust

Kurust to neutralise remaining

A ferrous preservative anti-corrosion primer (these are quite expensive so try to get a plastic "tin" that will reseal tightly so it can be stored for future use)
(Or red Oxide primer which is not so expensive)

An oil-based gloss paint system

(Try not to use water based paints on anything that can rust, as it defeats the object)

You can use the same method on the underparts of your car, which are prone to rust. I often wish that car manufacturers would use paint, and grease the nuts).

 

[Burnerman]

Hammerite is best used as a top coat, but the two colours will adhere to another......observe the correct drying time for best results.
Cellulose paints will attack Hammerite in the unlikely event of you using them.
John

 

[opps]

Hammerite is best used as a top coat, but the two colours will adhere to another......observe the correct drying time for best results.
Cellulose paints will attack Hammerite in the unlikely event of you using them.
John

Isn't hammerite cellulose based? You need to use cellulose to clean the brushes. Or rather, that was the case whenever I have used it.

 

[JohnD]

No, and it has a special thinners, probably toxic.

It used to be Trichloroethylene (sp?) But may be different now.

IMO you are better off throwing the brushes away. So don't use your best ones.

 

[Burnerman]

Hammerite is Xylene based - or used to be!
John

 

[johnny2007]

I clean hammerite off the brushes with white spirit and it works.

 

[opps]

Hammerite is Xylene based - or used to be!
John

A quick search suggests that cellulose thinners contains xylene, but that xylene on its own would be sufficient.

Tnx

 

[Burnerman]

Thanks - I didn't know that!
John

 

[opps]

I clean hammerite off the brushes with white spirit and it works.

I don't use Hammerite very often, but the first time I used their direct to metal/rust paint, white spirits definitely didn't work. Perhaps you used a different version?

 

[johnny2007]

I don't use Hammerite very often, but the first time I used their direct to metal/rust paint, white spirits definitely didn't work. Perhaps you used a different version?

No, that one, direct to rust.
Repainted a cast iron bench not long ago and white spirit worked.