Whats a good, cheap etching primer?

Hello! dont know too much about the stuff, but i need something to arrest some rust, and have a good base. Any help much appreciated! thanks.

 

shop line

 

Etching primer won't arrest rust.

 

if you want cheap go to home depot and get rust destroyer...they sell it in a rattle can or in quarts....

 

Then what is the best first coat for bare metal?

 

Etching primer is, I buy Rustoleum in spray cans from Autozone, works great, but I put epoxy primer over it right away, I do my Bondo work over epoxy, works great.

 

go to a paint store and ask I am out of town otherwise I would go look at what i use (cant remmber). thats what I did. dont rattle can it or your 2k primer will lift.

 

not cheap, but easy, and in a rattle can, and as good as i've found is the Wurth stuff (i think it's made by SaBesto or somesuch)

 

Good & cheap don't belong in the same sentence. Eastwood has a good rust encapsulator that you can buy online.

 

What? No it won't! Not unless you're doing something wrong.

 

AutoValue Parts stores have a line of decent paints.

 

Paint lines can be mixed but most reps. will tell you that the Number one reason for paint faliure it not using the same line from start to finish.

 

this;

http://www.southernpolyurethanes.com/Product lines.htm

 

I used SEM etching primer. No mixing when praying with a gun at 25 lbs pressure. It also comes on a rattle can and works great. I bought mine at my local automotive body shop supplier. The picture is a fender shot with SEM over bare metal.

 

Is THAT how you get paint to stick good...??? You pray with a gun in your hands... Hmmmmmmmmmmmm...!!!

R-

 

I also use SEM self etching primer and I'm also a big fan of the Eastwood products.

 

Mar-Hyde Self Etch. Shoot straight from the can, no reduction, no catalyst.

 

If you want it to be right and last you need to stick with a catalized 2 part primer. In your area you should be able to get PPG DPLF epoxy primers. They come in several colors. You need to put a surfacer primer over it immediately though if you want it to last. Follow PPG's tech sheets and you'll be happy with the results. If your looking for quick and dirty, go with rustoleum rusty metal primer. It works, but I sure wouldn't try to put a nice paint job over it. Remember, you get what you pay for and a couple hundred now will save you tenfold in headaches later. My 2 cents.

 

Small parts I use either SEM or Dupli-Color etch primer in rattle cans.

Bigger stuff I use PPG Shopline epoxy (less expensive generic version of the DP / DPLF primer). Reduce it a little with acetone and it lays out really smooth.