My own Rust primer paint test Rust Bullet, Jenoseel etc

Ivor · Post by **Ivor** » Thu Feb 07, 08 7:17 pm

The Rust Bullet (black one) seems to be holding up well...

Anonymous · Post by **Anonymous** » Thu Feb 07, 08 7:31 pm

silver rust bullet is doing good

RayC · Post by **RayC** » Thu Feb 07, 08 8:59 pm

Bloody el Wil, you have`nt got enough to do, wish i could hang around for 6 months waiting for something to rust

Cannonball · Post by **Cannonball** » Fri Feb 08, 08 12:39 pm

try leavin it in the corner off a field where the sheep Bananarama!

Kev · Post by **Kev** » Fri Feb 08, 08 12:45 pm

Or in the sheep field at Shakey where we all Bananarama!...........

RobTwin · Post by **RobTwin** » Fri Feb 08, 08 1:11 pm

Kev wrote:Or in the sheep field at Shakey where we all Bananarama!...........

he wants em to rust Kev, not DISSOLVE !!

Anonymous · Post by **Anonymous** » Fri Feb 08, 08 3:29 pm

well, at least it would give me a legitimate reason for being the sheep field I suppose

Anonymous · Post by **Anonymous** » Sun Mar 16, 08 8:44 pm

hopefully when you check them again in 6 months time the bin men have`nt had them away

mind you if they are like ours you`d have to put them in the correct bin & make sure it was moved the 2 feet to the side of the road or they would`nt move `em low paid you see ,only about 18 quid an hour

anyway good idea

Anonymous · Post by **Anonymous** » Sun Aug 31, 08 5:17 pm

13 months update. left to right

hammerite smooth . white. holding up quite well

Jenoseel. only a tiny hint of rust at the extreme edges, no bubbling

Rust bullet silver. some bubbling under the paint at the edges

Rust bullet blackshell , whole corner has come loose from metal, and metal is rusting badly under there, paint can be peeled off like a sticker! No rust where it was still stuck down.

zinc primer. moisture seems to have got through this and is rusting everywhere but it is a lot better than it would be with nothing on

etch primer pretty rusty
etch primer with yellow 2k topcoat. good apart from edges.

It seems the rust bullet blackshell has a major adhesion problem on clean steel. Maybe it is better on rusty steel.

So at the moment the Jenoseel is in the lead.

If I had unlimited time and resources I would have done a control (bare) panel, and also done topcoats over the jenoseel etc since they are able to be topcoated.

db · Post by db » Sun Aug 31, 08 6:33 pm

I've read up on zinc primer and it works as a 'sacrificial anode'.
I.E. the zinc corrodes instead of the steel under it.
Speedboat engines use the same principal- they have a chunk of ally bolted to the bottom which needs replacing occasionally as it gets eaten away by the salt.

For zinc primer to work you need:
Electrical contact with the steel (no primer under it)
Zinc-RICH primer (the price is a good guide here

)
To re-coat it when it starts to fail

Great test Dave

bananaskin · Post by **bananaskin** » Sun Aug 31, 08 7:52 pm

Dave?