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HELP! Surface rust under filler

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StenGuns Veteran Volks Folk

2,147 posts · joined Mar 2004 ·

#428683
Are you sure what you are describing is rust?.. Before I go to the trouble of a "back to metal" I would get a paint/panel guy to take a look.. Rust can develop under anything if the preparation wasn't done properly.. But if the previous guy did take it back to metal, it would be odd if it has corroded to that extent.. Could the discolouration be a surface prep under the primer?..
Just my thoughts but I certainly would be getting someone with knowledge to take a look before I do anything..
Rob

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#429086
It's ok if you are painting your house in water based acrylic, or the kids are doing some watercolours.

I don't think I understand the question?

You should not paint cars with any moisture on the panel. If your compressor is giving moisture out the gun head, then you need a water trap, or in really humid circumstances a drier, which is like a refrigerator that takes all of the moisture out of the air. We use them in panel shops due to the sheer volume of air consumed, and they cost thousands!


proctor wrote:Any opinions on painting with moisture?
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

Louis Commited Dubber

50 posts · joined Nov 2005 ·

#429162
This thread is now three days old. You could have done what you know needs to be done in this time.
Did you want answers or did you want to be reassured that you could just paint over it without removing rust however minor?

byronbus dsk

4,204 posts · joined Jul 2003 ·

#429182
Louis wrote:This thread is now three days old. You could have done what you know needs to be done in this time.
Did you want answers or did you want to be reassured that you could just paint over it without removing rust however minor?
What a wanker!!!

Looks awesome proctor, keep the pics coming!!!
www.dsk.com.au

Louis Commited Dubber

50 posts · joined Nov 2005 ·

#429185
Won't look awesome for long with rust under the paint.

byronbus dsk

4,204 posts · joined Jul 2003 ·

#429188
For some reason i trust hellbus over louiser on this one...maybe its because thats what he does for a living...
www.dsk.com.au

Louis Commited Dubber

50 posts · joined Nov 2005 ·

#429189
Except hellbus reads so well he thinks the moisture is in the tin of paint.
If the primer you have is in a sealed can, then moisture won't be a problem.
You people need serious help.

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#429195
Just ignore him guys, he has been reported. Louis you have no right to say some of the things you do, and I don't care what you have said to me, I am saying this in regards to negative comments towards others.

Even if I do make a mistake I am man enough to stand up and accept it.

Primer in a sealed can not having moisture problems is still a fact, I am not telling any fibs there. I am trying to help here. In fact I certainly feel I can actually get respect from my peers as I show respect to them.
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

byronbus dsk

4,204 posts · joined Jul 2003 ·

#429202
37 posts of utter crap...Im guessing he's someone else stirring shite

Thanks for your info peter, very much appreciated!!!
www.dsk.com.au

Dasdubber DAS Resto Haus

5,746 posts · joined Aug 2002 ·

#429205
So where are your suggestions VDubya/Louis - you seem to be so quick to bag everyone else, what wise words of wisdom can you provide from your many years of experience?
www.dasrestoparts.com.au

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#429206
Anyway back on topic.

Looking at the prep and the surface you are showing in the pictures it looks fine to prime. The primer you have on the vehicle looks stable, and probably the best primer to use over it would be a red oxide etch primer which will work towards making sure any minor problems in regards to moisture are rectified.

Spies Hecker 2 Pack Red Brown primer actually has some conversion agent in it especially to prevent moisture related problems, unless they are severe of course.

Your bus will not rust away. Rust holes always start from inside. behind panels where dirt and water build up.
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

Louis Commited Dubber

50 posts · joined Nov 2005 ·

#429211
proctor wrote:Maybe I did'nt explain that well sorry!
I was talking more about that moisture might be in the primer. Its been in primer for quite a while (in a garage though), so thats where the trouble is. Most of it looks fine, but in a few places (mainly on the roof, and the front, theres evidence of very slight surface rust/discolouration under parts of the primer.
Here we go again. You are all so full of ready to fire off advice that you can't even read the question.
He clearly says the primer is on the car and there IS rust under the primer.
The only solution is to get rid of that. If you don't it won't magically stop with some paint or assurances of these people.
There is no mention about primer in a tin.
If you spent half as much time reading what people are asking you wouldn't need people like me showing you up.

Louis Commited Dubber

50 posts · joined Nov 2005 ·

#429222
OWNED

StenGuns Veteran Volks Folk

2,147 posts · joined Mar 2004 ·

#429539
Proc.. Keep at it mate.. Don't worry too much about the negative shit..
Preparation is the key.. If you do that right, you will have a good looking bus for years to come..

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#429641
Spies Hecker is one of the best, although PPG make one similar that is a two pack etch primer, but I am unsure if it is red/brown in colour

In fact your paint shop should be able to offer whatever brand they specialise in. The inportant thing to get is a two part etch primer suitable for primary layer application. These primary layer etch primers are designed to etch, seal, prime and usually the better ones have qualities that make them hold minor imperfections of surface rust at bay.

Now remembering that perfect clenliness and brand new metal would be a perfect world, well it isn't, so they put these additives to help. This is not to say that a scaly rusty surface can be fixed, as the amount of additives to do that would leave no primer.

Like a lot of formula's. They can only use so much of each additive until the product will fail in another area. It is up to you to get it to the stage you have got it, and the bit that hurts is that it is the more expensive products that do the better job.

Dont use industrial on part steel etch primer, as it is designed for sheds and tractors that are to be painted in air dry enamel. You wont get a good paint finish on top of it.
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

crewcabconnection Being Sid James

1,922 posts · joined Apr 2003 ·

#429832
I took Hellbus' advice and Stephs and Killakorns and alls turned out well...if you can't be an asset to a thread, don't be a drain ...
Loves a lolcat