Stripped and ready for paint

[undertakerman]

I will have my 68 F100 cab ready for primer very soon. I have chemically stripped the cab on the outside and have not touched the inside of the cab yet. I know I need to use an epoxy primer with an filler. But what do I need to do the get the outside bare metal ready to receive the primer since I chemically stripped off the old paint and can I just sand the interior down to prime it or do I need to strip it as well.

[cep62]

Primer is needed to gain adhesion and fill imperfections .
If your interior paint is in nice shape , just scuff it and paint over it .
If you're painting it some light metallic color, a coat of primer or sealer can help.

On the outside after stripping ,you'll have sludgy mess .
Get a D/A sander and go over it with 80 grit then 180 grit. (or somewhere close to those grits)
Then you can do prime or do body work.

Now there are many ways to proceed depending on time and money.

For a long term project it'd be best to epoxy prime everything .
That can help protect it while you're doing your body work.
Then use a filling easy sand primer (preferably a 2K ) over all.

It can be amazing how poor prep work can look ok, but better prep will last a lot longer.

[undertakerman]

Thanks cep62 for you reply. The interior is in good shape so scuffing it up is ok. I figured that scuffing would be fine. So when you say "just paint over it" on the interior, are you referring to primer and then paint or just paint? I do all my bodywork prior to doing my priming. So I need to use 80 or 180 grit paper or close to those girts to prep the bare metal. Nothing else? I don't need to wipe the cab down with anything after scuffing? As I stripped an area I washed it down to make sure all the chemical resent was removed. Was this a good thing or bad thing? The color of this truck and bed outside will be Wimbledon White and the inside will be Wimbledon White with a black dash pad and a medium to dark tan rolled and pleached sit. Thanks again for your reply.

[sargentrs]

For a good smooth finish you should use something finer than 180g. I started with 100 then 150 and sprayed primer. Then 250 and sprayed more primer. Still felt a little rough to me so I went back over it with 400g. Wow! What a difference. I then sprayed a white primer/sealer and it felt like glass after it dried. Of course I started with bare metal. You should wipe it down with some metal prep to remove any residual dust, oil or wax to insure proper adhesion. I use Prep All from my local Sherwin Williams automotive finish store. Soak a rag, wring it out and a quick wipe is all you need.

[cep62]

on the interior, are you referring to primer and then paint or just paint?

It depends on what it needs and what you want it to look like.
If there's scratches or other blemishes you will see them unless you sand , prime and sand them out.
If it's in nice shape just scuff it with a "scotch brite" and paint it.

Nothing else? I don't need to wipe the cab down with anything after scuffing?

Oh yeah , you cant be too clean when it comes to paint prep.
It's best (though not always done ) to solvent clean with clean paper towels before spraying primer or paint.

[undertakerman]

Thanks guys for your help. Will post pics of cab at a later date. Thanks again for your help.

[PetesPonies]

Wipe the bare outside with phosphoric acid, then papertowel it dry. Do small sections as you do not want the acid to dry. THis will remove surface rust and help greatly with adhesion. Then use your epoxy primer.