TheSamba.com Forums
 
  View original topic: bare metal mistake.
Louis Mon Jun 04, 2012 10:47 am

I stripped my bug a while back to do all the welding but i was not ready to spray. i kept the bug inside and sprayed it with zinc but now its been a while and i am ready for primer but not ready for paint because i still have some welding to do but i want to prime because i see a bit of surface rust. please help me with what to do before applying the primer.
i dont want to trap rust. what do i do to save this??

i should have never stripped the car. what a mistake.

idiot....

Matt K. Mon Jun 04, 2012 1:09 pm

Light surface rust is really no biggie....it happens. I usually just sand off the surface rust back down to bare metal and then either spray a coat of etch primer before you re-prime or if you have a DTM( Direct to metal) primer you could just prime it as usual..

schell '59 Mon Jun 04, 2012 5:09 pm

the mistake wasnt stripping it...the mistake was striping it and not covering it in a protective coating BEFORE you stored it or began rust repair.

Mike Fisher Tue Jun 05, 2012 5:20 am

I treat all the bare metal with Rust-Prep liquid and then use the rattle can primer of Your choice. When the Whole car is smooth/ready for paint rough up the rattle can primer with 320 grit and spray your epoxy primer/paint. All the paint goes on in 1 day with no sanding between coats!

Bobnotch Wed Jun 06, 2012 12:28 pm

schell '59 wrote: the mistake wasnt stripping it...the mistake was striping it and not covering it in a protective coating BEFORE you stored it or began rust repair.

X 2.
After stripping all the old paint off, I prefer to use epoxy primer on all bare metal surfaces, especially IF I'm not going to be getting back to it anytime soon.

The big problem with doing a job like Mike sugests, is that some of the solvents can/will attack the "rattle can primer", causing it to lift. This means it's gotta be stripped back down again, and re-shot. I hate doing "re-work", as now I've got to invest that time AND money again (for a 2nd time). :roll:

Louis Fri Jun 08, 2012 8:32 pm

is a 2k epoxy primer fine on bare metal or etching primer needed before?
also how long do i have before the epoxy become too hard to sand?
i heard it become like rock when its fully hardened.

homebrewin' Wed Jun 13, 2012 7:06 pm

We occasionally use epoxy primer at our shop in certain situations, and from what I know, you are supposed to spray it straight onto the bare metal. It can possibly react with etch primer if sprayed over it. If you break through to bare metal when sanding the epoxy, you can then spot prime with etch primer and then use "regular" primer on top of that. Epoxy is a more durable finish than normal primer, but it still sands out fairly easy.

lyrikz Tue Sep 25, 2012 10:04 am

Mike Fisher wrote: I treat all the bare metal with Rust-Prep liquid and then use the rattle can primer of Your choice. When the Whole car is smooth/ready for paint rough up the rattle can primer with 320 grit and spray your epoxy primer/paint. All the paint goes on in 1 day with no sanding between coats!

So you are recommending base your WHOLE paint job on top of sanded rattle can primer?

No man. You dont want your paint job over rattle can.

Mike Fisher Tue Sep 25, 2012 10:14 am

lyrikz wrote: Mike Fisher wrote: I treat all the bare metal with Rust-Prep liquid and then use the rattle can primer of Your choice. When the Whole car is smooth/ready for paint rough up the rattle can primer with 320 grit and spray your epoxy primer/paint. All the paint goes on in 1 day with no sanding between coats!

So you are recommending base your WHOLE paint job on top of sanded rattle can primer?

No man. You dont want your paint job over rattle can.

Note the 'epoxy primer' at the end of my second sentence. :idea:

lyrikz Tue Sep 25, 2012 10:16 am

Mike Fisher wrote: lyrikz wrote: Mike Fisher wrote: I treat all the bare metal with Rust-Prep liquid and then use the rattle can primer of Your choice. When the Whole car is smooth/ready for paint rough up the rattle can primer with 320 grit and spray your epoxy primer/paint. All the paint goes on in 1 day with no sanding between coats!

So you are recommending base your WHOLE paint job on top of sanded rattle can primer?

No man. You dont want your paint job over rattle can.

Note the 'epoxy primer' at the end of my second sentence. :idea:

Ya, you are putting that OVER rattle can. Just not good.

Mike Fisher Tue Sep 25, 2012 10:34 am

Well, I have Never had any paint lift doing it my way!

lyrikz Tue Sep 25, 2012 10:34 am

Mike Fisher wrote: Well, I have Never had any paint lift doing it my way!

That is all that matters. But some people wont be that lucky ya know.



Powered by phpBB © 2001, 2005 phpBB Group