Rust question
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Rust question
Posted: June 10 2008 08:21 AM
 
John Wallace (aka trichevyfan) [ View ] [ red848@aol.com ] [ Car Ads ] [ Blogs ]
Natchitoches, Louisianna
 
I'm thinking I will soda blast my roof top and possibly the whole car. My question is that I have small rust bubbles between the roof, and drip rail area, and wanted to know if I soda blast, possibly spot balst those area's, and then spray Ospho in there, is that okay? Will the primer stick to it? I was thinking I will let it set for a week or so, and then clean the area before priming, but I've been told that primer won't stick where Ospho has been. Any comments?
 
 
Comments
 
Posted by EZRodder  -  06/10/2008 08:48 AM
Wait 'till Shine reads this.
EZRodder [ View ] [ Email ] [ Blogs ] [ Car Ads ] Bernville, Pennsylvannia
 
Posted by Crazyhorse Rod Shop  -  06/10/2008 08:51 AM
neither of the products you mentioned have any place in the automotive field. soda blasting is for cleaning monuments and industrial equipment . you'll hear different but if you soda blast a car and bring it to my shop i will pass on it. i will not touch one that has been soda blasted or has any kind of rust killer on it. none of it works. jmho
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Crazyhorse Rod Shop  -  06/10/2008 08:52 AM
and you do not prime bare metal. epoxy is the only way to go.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Starfire  -  06/10/2008 09:43 AM
Personally, I think you may be overly paranoid about the nature of the rust problem, unless you are certain there may be rust through around the roof rails. Ospho is not necessarily the best thing to use when attempting to control rust issues and what you have heard about some paints not sticking to it is absolutely correct. It is specifically recommended for use under oil based primers and paints. I think you will be better off assessing the rust problem once you have removed the existing paint.


Now about that soda blasting idea, not a good idea. Yes, soda is going to be gentile with any chrome, rubber, or glass it might accidentally hit, but it is so fine it will creep into areas of the car you don't want it to be in and it is a bear to get it out of all nooks and crannies and actually may lead to future rust problems in those areas as it will absorb moisture and hold it. Talk to an auto painting professional about what media they recommend for paint removal. Most are likely to recommend you use plastic or glass beads.
Starfire [ View ] [ Email ] [ Blogs ] [ Car Ads ] Weimar, Texas
 
Posted by tlp1968  -  06/10/2008 10:59 AM
I will say one thing....Rust Bullet Al has used it and so have thousands of others. Then you can epoxy prime over it. This should put your mind at ease. I would have to agree on the soda blasting....skip it. Clean and prep the metal right and you will be in good shape.
StreetRodding.com Marketing Director [ View ] [ Email ] [ Blogs ] [ Car Ads ] Springfield,, Illinois Charter Member since August 2003
 
Posted by Crazyhorse Rod Shop  -  06/10/2008 11:12 AM
rustbullet, por15, ospho or whatever you name it is ok for your farm truck but not on a nice car. there is no substitute for removing rust. epoxy would be a better coating.
dont poke the porchdog........he bites [ View ] [ Email ] [ Blogs ] [ Car Ads ] BLUFF DALE, Texas Charter Member since March 2003
 
Posted by Starfire  -  06/10/2008 12:19 PM
Shine is 100% correct on dealing with rust. Other than simple surface rust that can be dealt with by media blasting, or even sanding, there is no replacement for cutting out the rusted metal and welding in fresh metal. There is no way in heck to satisfactorily deal with serious rust on just one side with some Mickey Mouse surface treatment. You may get it to look good for a while, but eventually it will be back if the bad spot is not completely removed. Anybody who tries to short cut on a street rod or collector car is just kidding themselves, which will eventually cost a lot of money (again). Too much is invested in the typical rod or collector car to mess around with half ass doing the job.
Starfire [ View ] [ Email ] [ Blogs ] [ Car Ads ] Weimar, Texas
 
Posted by tlp1968  -  06/10/2008 02:40 PM
I would agree about the heavy rusted metal, I thought we were talking about surface rust issues not pitted metal. I have seen the Rust Bullet work on single side rust so that is all I can say.
StreetRodding.com Marketing Director [ View ] [ Email ] [ Blogs ] [ Car Ads ] Springfield,, Illinois Charter Member since August 2003
 
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