sandblasting and priming....will it stop the rust?

[rally4x4racer]

phosphoric acid is the active ingredient in anti-rust products. If you use straight or water dilute phosphoric acid it works great on rust. (Ice machine cleaners are typically high in content)

I always use etch primer - why do you prefer epoxy primer chevy? I just use the etcher cause it works well and you can get it for $5 per .

[Mr. Clean]

rally4x4 racer I do not use s for my painting so I cannot comment on their quality etc.... and here are my reasons for using epoxy and not etch......

Etch primer is soluble and it will soak up anything that touches it, you cant get filler on etch, it soaks up the solvent and kills the adhesion, not a problem with frames and such but with bodywork on cars. Epoxy primer is the only one that is not porous. Epoxy is air tight and water proof. Epoxy primer has the best corrosion resistance as etch soaks, epoxy primer seals. Epoxy can be used in every phase of the paint process and etch cannot. Epoxy can be blocked sanded and you are still 100% sealed which cannot be done with etch, and finally it has been recommended to me not to go over blasted metal with ETCH, blasted metal is acceptable with epoxy.

[SYKO]

MAY I add to this Mike? I forgot our new freind WATER BASED PRIMERS these are just as strong as an epoxy primer, harder to spray as they are very wet! they are in fact water soluable, but easier to sand then epoxy and have wicked adheasion to almost any surface plus once its dry its like epoxy its almost impervious to anything! I dont use etching primer for much anymore except spray can etching primer for small spots before painting.

[Mr. Clean]

MAY I add to this Mike? I forgot our new freind WATER BASED PRIMERS these are just as strong as an epoxy primer, harder to spray as they are very wet! they are in fact water soluable, but easier to sand then epoxy and have wicked adheasion to almost any surface plus once its dry its like epoxy its almost impervious to anything! I dont use etching primer for much anymore except spray can etching primer for small spots before painting.

Absotively, I have yet to use water based primers, sounds like a great product.

[rally4x4racer]

i have never had a problem using filler on etcher and I have used it throughout multiple layers of primer/sanding etc (when I sand thru to metal in places)

It may be unconventional, but I use primer when painting tanks and smaller things. It is easier and it provides good results. As long as the finish is professional and durable I am happy.

maybe it just works well for me because I am using the ?

[Mr. Clean]

i have never had a problem using filler on etcher and I have used it throughout multiple layers of primer/sanding etc (when I sand thru to metal in places)

It may be unconventional, but I use primer when painting tanks and smaller things. It is easier and it provides good results. As long as the finish is professional and durable I am happy.

maybe it just works well for me because I am using the ?

Thats cool, whatever works for you. There is certainly more than one way to do this and more than one product that will work.

To answer the original question "sandblasting and priming....will it stop the rust? Yes but only temporarily if the correct base primer is not sealed with paint......

[rally4x4racer]

I disagree there, chevy

- its all temporary. Some of it is just more temporary than other

[Mr. Clean]

I disagree there, chevy

- its all temporary. Some of it is just more temporary than other

I am glad you disagree.

Please re-read my statement. "Yes but only TEMPORARY if the correct base primer is not sealed wth paint.

[rally4x4racer]

I have never seen a permanant paint job.

I have seen some of them last quite a while.. but the sun and rain wear em' down eventually

I was being kind of sarcastic, I guess.

I am spraying the truck soon, will probably check out the epoxy or water primer. I have not used either before.