Painting a car outside, am I fine to cover some parts of bare metal with oil?
Posted by SERP92@reddit | projectcar | View on Reddit | 21 comments
I've gotten a bit of rust, I keep the car covered but during the cold mornings it gets a bit of dew.
MysteriousDog5927@reddit
I can’t believe you had to ask if you should put oil on primer .
Boonies2@reddit
Sand the rust off, then hit it with metal prep to et h the metal and neutralize the rust and the prime it.
You don’t want rust getting in where you will eventually paint.
If you don’t have a place inside, then only strip an area that you can cover up with primer by the end of your work time.
Primer is a lot cheaper than a ruined paint job.
DakarCarGunGuy@reddit
You need a primer sealer since primer itself is not at all weatherproof. It'll absorb water which could mess up the later paint even with no rust. Also you don't want to mix paint and primer brands due to possible lack of proper adhesion.
thepvbrother@reddit
Honestly, I'd probably just throw on some rattle can primer rather than use oil, which will ruin you paint if any is left.
SERP92@reddit (OP)
I've got everything prepped for painting but im waiting for it temps to get warmer and I'm like kinda fucked
DakarCarGunGuy@reddit
Get Por-15 Metal Prep. It puts a thin zinc phosphate coating on that prevents rust. It also kills what surface flash rust is already there. It also etches metal to create better bae coat adhesion.
thepvbrother@reddit
You're going to be sanding anyway
SERP92@reddit (OP)
I had a shitty tarp, I changed it to some foil and properly secured it with rope, also i hit the rust spots with some sandpaper too.
19Ben80@reddit
Just prime it
kalifornia_King@reddit
Juat by the bs plastic cover they use in shops an double tape the edges edges maybe duck the end . Like a proper paint job. No over spray its good to get in the proper habit an teqniecs .
Whizzleteets@reddit
Old guy trick...when you get ready to shoot, wrap a chain around the rear suspension long enough so it touches the ground.
p3rfr@reddit
Get m3 weldthru primer as temporary primer. And 2k epoxy primer as permanent primer
Arcadia_AMC_APE@reddit
No oil..Ever.. Oil is very difficult to get out of scratched up bare metal.. Hit it with a light etch primer, to seal it up, with a rattle can & scottchbrite it before you start to spray the body.. Good luck!!
0xF0z@reddit
WD-40 - but you gotta clean it off with acetone well.
East-Teacher8542@reddit
Yeah if you want fish eyes all over your paintjob, this is terrible advice.
ptcptc@reddit
I think this is great advice if you want fish eyes.
East-Teacher8542@reddit
I see how i worded that now lol
pistonsoffury@reddit
Ospho is the product you're looking for.
East-Teacher8542@reddit
Don't use oil you'll get fisheries in your paint job and it'll soak into your primer and such, just prime the spots of bare metal, also primer is porous and will eventually rust if its not sealed.
lalaladylvr@reddit
dont use oil. spray it with a rattle can of etching primer. OIL IS BAD for body work.
or cover the car with a tarp or poly. not tighltly. lay a could small ferring strips across rhe car so the tarp wont sit tight to the metal. and let it the ends float for venting. dew will settle on the tarp.
BigEarMcGee@reddit
If they’re going to stay bare, think about “Fluid film” it’s a wax spray that keeps corrosion from happening.