mess up paint job

[kenzo]

Guyz i need ur help, since's u guyz are DIY experts, i mess up my paint job on my gen2 door panel, here's wat i did.

1. i wash the panel and clean it properly and dried it.
2. i then sprayed the coating and left it to dry under the sun for 10 mins
3. then i sprayed the black paint on the door and left it under the sun for 10 mins
4. and i sprayed the coating and dried it under the sun for also 10 mins
5. then sprayed back the black paint and dried it under the sun for 10 mins
6. and another 1 more time coating and under the sun for 10 mins

took me 4 hours and i was happy with the results, but the paint was peeling off abit by bits, and a scracth could see the original colour again,and one more thing is after i sprayed the coating, the paint started to be rougfh, wat should i do?? i used the anchor spray can and the colour code is H2...it's RM18 per can! ur help is much appriciated, thanks guyz!

 

[kenzo]

my door panels, i just like it to be black, the size are just the same as any gen2 door panels...

 

[DarkAccoon]

honestly, i dun think u washed it enough, or during the drying process after washing, u gotta make sure no dust falls on top

H2.. if not mistaken that is matte black, or also called flat back rite??

what is this coating that u are talking about?
clear coat or something else?

ken yeang, ps. i think he meant the door panels inside the car

 

[ken yeang]

Dark accoon and Kenzo

If Kenzo meant inside panel, then just ignore my post no 4.

 

[kenzo]

yea, its the inside panel, wat clear coat can should i get? thanks alot guyz....

 

[ashton]

how do u guys do ur own paint?i thot theyre supposed to use that sprayer machine to paint?!

 

[FoarGeez]

i dunno much bout paint cuz i basically didn learn about it deeply, but if u planning to do it again nex time, i would suggest using a 'Primer' b4 gettin the color on.. this basically acts like a glue n also enchance the color for the final result.

but primer its kinda hard to find a spray can type, most of the shops selling in liquid type bcoz most of car paint shops use airbrush for finer smooth finishing... theres only one brand i know which is 'Matahari' brand..

i did a small diy recently using those.. will post it soon if got d time.. cheers...

 

[imoloq]

Yes what FoarGeez said was right. You need to use a primer 1st before spraying on the actual coats of paint. Last time I was DIYing my grille, I used a primer before the actual coat and it turned out fine. Just remember to follow the instructions on the primer.

Try Ace Hardware. They usually sell this kind of stuff.

 

[pening99]

use fine grade sand paper to remove the old paint that u have spray to the panel. make sure u sand all the black paint n then wash it with soap wait until it dry n then spray again with only black paint layer by layer until u puas hati

sory im not good with english but im learning

 

[kenzo]

thanks alot guyz, will try it again! :D

 

[howiechoo]

i tot there's something to be apply first before spray on plastic? is it gold oil? sorry dunno wa tit call

 

[khguan]

if u do not want to use primer paint for plastic or cant find it.. u can just use the paint for plastic... u can get this kinda paint from ACE Hardware... brand is Krylon... but not cheap oh... around RM30 per can if not mistaken....

 

[vyruzj]

Primer = Enamel paint??

Guys,

Currently i have a can or enamel which is bought frm Ace hardware. Is this thing similar to primer?

I have tested the enamel spray on a clean surface. The enamel felt sticky when i touch it. Can i use it on plastics?

 

[jswong]

KHGuan,

Yeah, Krylon Fusion sticks damn well on plastics. It's not cheap, but there's absolutely no mistake. It's next to impossible to overspray with Krylon, believe me. Try it once and you'll see it's a great investment. You can be spraying continuously on one single spot, and it won't drip or smudge. Krylon is THAT good.

The enamel thing is not really a primer, but it's good enough as one. I use it as a primer. Not all enamels are created equal. That enamel from Ace has some adhesive for the base or solvent, that's why it's so sticky. The flash-off time is around 15 minutes, but you can still leave your fingerprint if you touch it a little harder. It's within this period that you can spray a thin, even coat of normal acryllic paint over it. Somehow I find that it bonds to the enamel very well. Since the solvents are different, you won't get the thinner-versus-thinner problem as when you spray acryllic on acryllic. So, you won't get bubbles from under the surface, or the black underlayer rising to the top.

It'll stick to just about anything. Even wood. But it drips damn easily, and it also smudges easily because it's sticky. Lay thin, even layers, that'll do the trick.

 

[lanlee]

paint job

told by somebody that primer can't be mix with other paint with not the same brand. try to use same brand of paint products. 3 type of paint, enamel, lacquer and urethane. all those type of paint can't mix together. to paint a plastic surface, must add flex addative or the paint will be crack(with spraygun). spraying using canspray, a thin layer at a time or the finishing will be rought. always finish with clear coat to get that shining surface.

 

[vyruzj]

Thanks for the info guys. Appreciate it!

 

[jswong]

The main reason why paints can't mix is because of the solvent.

Let's say you want to spray acryllic-on-acryllic. Let's say both types use thinner as the solvent. If the bottom layer flashed off but not fully dried (i.e. the thinner hasn't fully evaporated), and you spray on the next layer, the thinner from the bottom layer will try to escape to the top and end up creating bubbles or uneven paint surface.

The other possibility is the thinner from the upper layer seeping through to the bottom layer, or 'attacking' the bottom layer. Another scenario is when the thinner at the bottom layer needs to evaporate, and the thinner at the top is attacking the lower surface. You end up with the layers not sticking together, uneven surface, paint creep and other such symptoms.

Hence, the need to spray really thin layers at a time, first and foremost. A primer is just a layer for the desired paint to stick on. Choosing a primer also depends on what surface the primer can adhere to. Generally, once you get a primer that can stick on a surface, your job should be easy from there. If you have a problem of your paint not sticking on the primer, then you have to experiment with introducing the paint onto the primer surface during flashing, right before or right after flash-off. Let the surfaces bond together due to the solvent action.