Primer question

[longnlow72]

My truck is a daily driver and i plan on getting in painted in a few months, but for welding up my antenna hole, emblems, stake pockets, etc i would like to do these between now and then. If i was to weld them and do all the body work and prime over that how long could i have the primer on there? Would it hold up to the rain and weather and not rust? thanks
-Ben

P.S. I have this in the paint and body section but i think alot of you people who dont consistantly(sp?) go over there would know.

[longnlow72]

i also dont have a problem with something as simple as re-sanding before paint and minor things

[flatblack67c-10]

I didn't have a problem with it. My bed was in primer for about 6 months, and I never had any rust come thru. I shaved the stake pockets, and the sidemarkers, (welded all of these up) I used Mar Hyde 2K primer.

[danho]

A good quality epoxy primer should hold up for you. I would post this in the body and paint forum for a better answer though.

[SweetandLong68]

Yeah you should have no problems. Just use a good quality primer and you should be fine for just about as long as you need to wait.

Some of my trucks got to primer but never made it to paint. So I know what you are going through... Mostly back in my straying fOrd days... haha

lata
CHRIS

[4x4Poet]

Most plain and guidecoat primers are porous. They allow water to microscopically seep thru to the metal and cause rust underneath the coating. If the truck is always inside, doesn't matter. If outside, then only a primer-sealer will prevent water from penetrating the primer(-sealer) coating to the metal. You can leave a primer-sealer on outside as long as it stays bonded to the metal. For your welding work that will ruin small patches of previously sprayed primer-sealer, have the paint shop mix up some primer-sealer in an aerosol can so you can reapply to just the parts you've welded around.

Verify this with your local auto body paint supplier. The staff will likely know this info from experience, whether personal or with customers. Besides, they will give you the best recommendation regarding waterproof primers.

[67ChevyRedneck]

I used a primer sealer and my truck has been in it since '96........ It was kinda cool 'cause for about the first 2 years it was shiny and looked like the truck was painted. Now its all faded My avatar pic was taken a couple months after the primer was applied.

[longnlow72]

ttt, i have "sem high build primer surfacer" its good primer and sweetandlong said a good primer should do, would this work, could find the product online

[mocwon]

4X4Poet is right on the mark. Regular primers may seem to be okay but down the road you run the risk of the paint peeling or rust developing under the paint.

Originally Posted by 4x4Poet

Most plain and guidecoat primers are porous. They allow water to microscopically seep thru to the metal and cause rust underneath the coating. If the truck is always inside, doesn't matter. If outside, then only a primer-sealer will prevent water from penetrating the primer(-sealer) coating to the metal. You can leave a primer-sealer on outside as long as it stays bonded to the metal. For your welding work that will ruin small patches of previously sprayed primer-sealer, have the paint shop mix up some primer-sealer in an aerosol can so you can reapply to just the parts you've welded around.

Verify this with your local auto body paint supplier. The staff will likely know this info from experience, whether personal or with customers. Besides, they will give you the best recommendation regarding waterproof primers.