Hey guys, I tried to paint my front lip first sanding it down with 400grit, then 2 coats of PLASTIC PRIMER, then wetsanding with 600grit, then applying 2 coats of spray paint, then 2 coats of clear.

What happens is, when i spray the color paint onto the primer, the paint begins to start wrinkling badly, it's so horrible!!! I fully sanded it down again and the same thing happened.


Do you guys think the PLASTIC PRIMER is the problem and it's not holdingup to the paint?? Any corrections to this problem, and the right materials and paint to use? Thanks for any help

 

Modified by RDix at 2:23 PM 11/12/2006

 

whats happening is the paint is "lifting". it's when the paint has come in contact with a contamination of sorts/the initial base(your case the primer is not compatible)is not compatible with the paint. you'll have to "baby" the process. first sand everything down again. use a fast drying non-silicone cleaner/solvent. sparringly spray plastic primer dry(not wet/shiny)over corrected surface. let dry for 20 minutes or so. you first coat of paint should be applied this way also(although drying time should not be as long unless its cold). from there wait to see if it lifts again. if not your in good shape and can proceed to clearing it. the fist coat of clear should also be dry. with you final coat being the "money shot"/ slightly wetter coat(no pun intended). i hope this will help. also if you dont add a flex agent, shortly after being installed it will crack(flex additive goes in clear when mixing). any problems or more info let me know i'll help out. my credability is from 8yrs of my useless life in the bodyshops around chi-town. let me know how it goes.stay safe

 

First off, Mr.SI 1 Thanks very much for your very helpful insight. I have lost faith in this plastic primer, i am actually considering using a normal primer.

I am actually doing all this using automotive spray can paint. The plastic primer was something of a household nature. I do believe the primer is the problem, forsome strange reason the primer felt soft and wet after I wet-sanded it with 600gr, after letting it dry 3 hours. I do not have faith in this plastic primer.

I have been told about the flex agent, Maybe I may try plastic clear-coat and hopefully that doesn't wrinkle my finish!

Thanks for your great advice I will let you know how it goes thanks!

 

wrong primer.... make sure you paint the lip after primer then clear coat, do not buy that enamel ****. because youll just start chippin paint in 4 months... basically a maaco paint job.

 

adhesion promoter

 

Yes I am not using the enamel stuff, and I am planning to paint it after i prime it then clearcoat it well.

 

i think this happens when two different paints are mixed together, laquer / enamel etc... i experienced this before with some clearcoats.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ekcivic9 &raquo;</TD></TR><TR><TD CLASS="quote">i think this happens when two different paints are mixed together, laquer / enamel etc... i experienced this before with some clearcoats.</TD></TR></TABLE>

diff. paints eat away at eachother.

 

I am learning alot by doing this myself. I just finished sandng it down to the bare surface. Tommorow I will try to prime it, then paint it. I will keep you guys posted thanks

 

best thing to do is sand it put 3 coats of primer on again and 3 coats of paint and 3 of clear... dont spray it all on at once...

 

sounds like you aren't letting the primer flash (dry) long enough. You should be waiting much longer than 20 minutes between respraying. On top of that it sounds like you might be getting solvent/debris pop which can be prevented w/ proper preperation before spraying the paint over the clear. Then again you may just be using a totally wrong paint/primer setup which has already been mentioned, I'm just trying to give you some other ideas before you go and spend more money on something you may or may not need.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NIKE SB’d &raquo;</TD></TR><TR><TD CLASS="quote">sounds like you aren't letting the primer flash (dry) long enough. You should be waiting much longer than 20 minutes between respraying. On top of that it sounds like you might be getting solvent/debris pop which can be prevented w/ proper preperation before spraying the paint over the clear. Then again you may just be using a totally wrong paint/primer setup which has already been mentioned, I'm just trying to give you some other ideas before you go and spend more money on something you may or may not need. </TD></TR></TABLE>

Thanks alot I will wipe it down with wax/grease remover before I spray it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eghatch16 &raquo;</TD></TR><TR><TD CLASS="quote">best thing to do is sand it put 3 coats of primer on again and 3 coats of paint and 3 of clear... dont spray it all on at once... </TD></TR></TABLE>

Thank you, I will take my time and do it properly. Give it 3 caots each insted of trying to spray it down all in one shot.

 

Hey guys, I'm finally back. thanks to the help, suggestions and comments from you great people i have painted my front lip myself sucessfully and it came out alot better, and no wrinkles at all!! thank god.

Thank you guys for all the help, couldn't have done it without your advice. I really didn't want to shell out $100 to paint something that is so easy to get scuffed, plus best of all I gained alot of experience for next times. DO NOT MIX BRANDS OR TYPES OF PAINT, PRIMER, PAINT CLEAR STICK TO ONE NAME BRAND OR TYPE!!!

I can't wait to get it on my car. It came out the way I expected it, the only flaw is on the top piece that clips over the bumper (type-r style lip) has few sanding marks and not enough primer to cover up the sanding flaws. As for the lower portion and the front face and flares of the lip I say they are immaculate for a spray can job.

I kept my paint at room temp, as well as the lip, tack rag to wipe of dust and then **** 2 coats of black and 2 coats of clear. Anways enough talking here's the pics as I promised:

 

I am currently in the process of painting another lip, I hope it goes well