Bubbling Paint
Discussion
I own a Porsche 944, and have 2-3 spots of bubbling under the paintwork from corrosion. The water has just got under the paint, I was wondering how to tackle it? I could buy new panels but they cost Porsche money which I just cant afford. Is it a good idea to cut out the bubbling and weld a piece of metal in it's place then prep and paint?
Cheers
Cheers
If you can post some pics, that always helps with diagnosis and suggestions. 
Once rust is in, it is very likely to return unless you cut everything out and weld in new metal as you suggest, but if the areas are small, you are thorough removing all the corrosion, rust-treat the bare metal and then use an anti-corrosion etch primer and rebuild the profile and refinish carefully, this can turn the clock back a fair bit and will be a lot simpler for a DIY repairer...
Tol
Once rust is in, it is very likely to return unless you cut everything out and weld in new metal as you suggest, but if the areas are small, you are thorough removing all the corrosion, rust-treat the bare metal and then use an anti-corrosion etch primer and rebuild the profile and refinish carefully, this can turn the clock back a fair bit and will be a lot simpler for a DIY repairer...
Tol
You need some Bilt Hamber - www.bilthamber.co.uk
As above, paint removed and some of the BH product applied.
Anti-corrosion primer, then paint, wet sand, polish, and regular use of BH Auto Balm.
If you're polishing the whole car to remove swirls and scratches, then their Auto Clay prior to polishing is much recommended.
As above, paint removed and some of the BH product applied.
Anti-corrosion primer, then paint, wet sand, polish, and regular use of BH Auto Balm.
If you're polishing the whole car to remove swirls and scratches, then their Auto Clay prior to polishing is much recommended.
The rust under the rear light is an unusual one, it doen't look an easy repair either although I could be wrong.
Rust on the sills - remember 944 sills rust from the inside out due to water collecting in them. If you take the vent out of your B pillar when you open the door and shine a torch in there how does it look?
I'm having a few scabby bits put right on my 944 by an excellent bodyshop near me and the whole lot is going to come to circa £1000 give or take a couple of hundred.
Nothing is structurl or even noticeable but it bugs me that the car isn't 100%.
By the way, are they genuine Cup 1s on your car or reproductions?
Rust on the sills - remember 944 sills rust from the inside out due to water collecting in them. If you take the vent out of your B pillar when you open the door and shine a torch in there how does it look?
I'm having a few scabby bits put right on my 944 by an excellent bodyshop near me and the whole lot is going to come to circa £1000 give or take a couple of hundred.
Nothing is structurl or even noticeable but it bugs me that the car isn't 100%.
By the way, are they genuine Cup 1s on your car or reproductions?
Edited by Wigeon Incognito on Monday 10th March 15:13
IMHO all these repairs require welding in new metal and refinishing. I reckon the bit under the light unit is because the car has been repaired before, probably a parking dint badly prepared.
Fortunately the areas are very localised and there's no hurry to do them. They wont get much worse for quite some time. Anyone handy with a Mig and a piece of old washing machine could achieve a good and lasting result.
Not worth messing around with filler and rust killers on this one or you will be doing the whole job again in less than a year!
Fortunately the areas are very localised and there's no hurry to do them. They wont get much worse for quite some time. Anyone handy with a Mig and a piece of old washing machine could achieve a good and lasting result.
Not worth messing around with filler and rust killers on this one or you will be doing the whole job again in less than a year!
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