Interior Painting

#1

So I finally got around to stripping most of the interior. There are a few surface rust spots on the floor boards (from where the carpet got wet I think) that I need to sand or otherwise stop. Once that is done and once I also have all the adhesive removed from the inside (specifically under the sound deadening material) I want to give the inside a quickly spray paint to at least protect it (before the cage goes in and painting becomes even harder). Since this is my first time doing some quickly and dirty automotive painting, the following came to mind:

Lightly sand surface to "rough it up a bit"
Wipe/clean with acetone
Spray with some automotive Rustoleum

I figure giving it a quick coat will at least protect it from further rust and also clean up some chips and scrapes I put there while removing the sound deadening material.

Is the above a sound approach for a basic level of paint protection?

#2

That should work just fine. It would be easier to paint it with a brush and a lot less messy.

#3

You bring up a good point about a brush. A few rattle cans automatically came to mind when I though cheap, but your method may be cheaper and less messy. Certainly saves the time masking off the windows and such.

#4

You really should wait until you put the cage in. It will get messed up again and you will be painting the cage anyway.

Michael

#5

Thats a valid point. My cage was installed in Nov, and the builder did a quicky paint job on the cage so it wouldn’t rust. I will paint the interior and the cage again in a few months. If you paint the interior first then put in cage, IT Will get pretty messed up.

#6

Thanks for the tips. Sounds like I’ll wait until the cage is in since I have to paint that anyway and the interior will likely get messed up as well.

#7

To stop the rust in it’s tracks you could consider Por-15 or something similar in the meantime - it did a fantastic job on a rusty battery tray on my 240z and people in Z land use it floor pans all the time. Once I painted it with the primer and finish coat couldn’t even tell it ever had rust. Solid as a rock. I’ve used the paste version to seal seams, etc. Not cheap though - like $30 quart or so…

#8

To stop the rust in it’s tracks you could consider Por-15 or something similar in the meantime - it did a fantastic job on a rusty battery tray on my 240z and people in Z land use it floor pans all the time. Once I painted it with the primer and finish coat couldn’t even tell it ever had rust. Solid as a rock. I’ve used the paste version to seal seams, etc. Not cheap though - like $30 quart or so…

#9

Anyone got any suggestions on paint type? Does it need to be high-temp or anything (does the tunnel actually get hot enough to worry about it)? I’m leaning towards the brush and paint can technique to avoid masking everything.

#10

I just did my interior with a couple rattle cans and a piece of cardboard to block stuff I didn’t want sprayed. Didn’t mask a thing and it looks pretty good.

#11

My guys (AutoTechnic.net) who have done a bunch of CCA E36’s and run at the front of the pack around here, got me:

Wurth Self Etch Primer, #0890 91700, one coat fill/primer.

Wurth VVW Grey Lacquer, #0893 349 115, two coats, good cover, fill, and wear properties.

Wurth is at 800 987 8487, in NJ.

Will shoot it in the next few days, saw it on an M3 they were doing, looked good.