I have a urethane body kit that came on my 01, i am working on sanding it all down due to cheap paint put on it. I want to paint my whole car after i do some more mods. I know that on urethane painters use some kind of flexing agent or something in the paint so it doesn't crack as easy, but is it in the primer too? the reason i ask is because basically my whole car will be primer for a lil while and i would like my kit to match in color, but i don't want to paint the kit and then have to have it all resanded when it comes time for paint. So i guess my question is if i use auto primer in a can on my urethane body kit will it crack off either before or after i have it painted by a pro?
well, if you're gonna leave your car in primer for a while (assuming you're gonna be driving it?), that primer is going to have to be sanded down again to get any dirt, grime, chips and whatnot off anyway. i think the best bet would just be not even primer the urethane parts, but since you said you want everything to be one color, i would add the flex addative into the primer now.
The flex only lasts about 12-24 hours after painting. they only use it so when the put the flexible parts on the paint dosent crack. After the paint is fully cured its the same as the rest of the paint.
First question... how much auto body/paint experience do you have?? i.e. how much body work and/or painting have you done?
If none or next to none... just let it go until you're ready for paint... or have a professional prime your whole car. DO NOT USE RATTLE CAN PAINT OR PRIMER!!! Most of the time rattle can paint and primer is a biotch to get off... and takes the shop more time in the long run to do your car. Yes it will have to be sanded down and such before paint anyway... but especially if you use rattle can stuff... it ALL has to come off before painting... or the paintjob will not turn out good.
Its not like it 's cheap dollar shop primer. i am talking about good quality auto primer. The stuff that sprays out in a line like profesional sprayers, not the stuff that comes out in a circle.
Rattle primer is still rattle primer. Trust me I've been in the business for years. We've had cars come in with rattle paint, rattle clear, rattle primer... still no where near as good as actual auto paint. Doesn't really matter how it's sprayed out to be honest...
If you absolutely positively feel compelled to use it... go ahead... but as a professional I can't personally recommend it... and actually recommend against it. It's better to spend a few extra bucks and have it done right... or just let it be until you're ready for paint, and have a shop take care of the details.
It's nothing personal, and I'm not trying to come off as a biotch, and if I am I apologize... just giving you an honest professional opinion.
^ bingo i made that mistake. i primed the car with cans it came out sort of clean but you could always tell it was cans. then when i actually went to sand and do the real primer with a gun omg it took forever to prep the car for paint. WOW that really was the biggest mistake with the car was spray canning it.
see look how much better it looks gunned
p.s. first time ever touching a gun
alot of people on this site are all about the damn rattle cans. Save your damn money and do it the right way. For that matter just spend 99 dollars on a maco (sp) job and call it good/sh1t
Dude putting your car in any type of rattle can primer will screw up your paint job. I dont even know how they call it primer. And with urathane parts you dont need to prime them unless they are crap and you have to do body work to it. Primer is what you put on after putty to fill any minor scratches and pinholes and any crappy sanding that may have been done. When i get OEM urathane I dont prime it, it has to be baked, then washed, then sanded with 400 grit(unless it comes with the dupont factory primer) it gets a sealer then base then clear. All your gonna do is cost yourself more money when it does get painted. When the painter goes to prep the body the rattle can primer will flake off in a lot of spots, because if there is ANY bare metal rattle can wont stick because you need an etching primer and you cannot keep etch primer in a metal container (even if it says self etching primer on the can) And dont worry about flex, if its any decent primer (which can cost up to 300 a gallon) it wont crack under normal operating conditions. And remeber 90 percent of a good paint job is in the prep. Dont screw it up now.
