PDA

View Full Version : How can I change the colour of plastic?



b@sh_n3rd
July 11th, 2009, 07:27 AM
Hey I've got this crazy idea. I use Jaunty on a 1998 Dell Dimension XPS D266. It's exterior is white-plastic and I got it second-hand for a cheap price. The white-plastic is scratched up and stuff (was so when we got it. It's been shipped from the states as junk so I'd suppose the shipping gave it a rough ride). Now I've modded the inside (got Jaunty with an awesome theme) but anyone know how I could coat the plastic in some kind of black? :D Thanks for any ideas on this. It's a very good PC, starts up in 31:05 seconds with Jaunty and holding on without a speck of trouble. I'd like to do my part for it :D

PS: I'd finish it off with a "Powered by Ubuntu" sticker after removing the existing, "Designed for Windows NT/95" :D

linuxguymarshall
July 11th, 2009, 07:33 AM
Take the parts out, spray paint it and rebuild it

PurposeOfReason
July 11th, 2009, 07:37 AM
Take the parts out, spray paint it and rebuild it
This. Depending on exactly what you want (flat, gloss, mirror, rustic, etc.) I can help with that. Either way, you're going to want to sand/prime first.

b@sh_n3rd
July 11th, 2009, 07:45 AM
Hey thanks for your quick replies,

Take the parts out, spray paint it and rebuild it
Yeah even my dad suggested spray-painting but would the paint work on plastic?

This. Depending on exactly what you want (flat, gloss, mirror, rustic, etc.) I can help with that. Either way, you're going to want to sand/prime first.
Well, I was thinking of flat. Is it possible to get Gloss/Mirror on a plastic subject? BTW, I haven't really painted anything myself :D...How would the other effects, apart from flat, look like on plastic? I think I need a picture of my PC...

zipperback
July 11th, 2009, 07:45 AM
Krylon makes a spray paint called "Fusion" which should work for your needs.

Here is the link for it.
http://www.krylon.com/products/categories/plastic/

Rustoleum also makes paint which is intended for painting on plastic which should also work for your needs.

Here is the link for it.
http://www.rustoleum.com/CBGProduct.asp?pid=121

I hope this will help you with your project.

When you get done, if you wouldn't mind posting some images online it would nice to see what you've done.

Thanks!
- zipperback
:popcorn:

PurposeOfReason
July 11th, 2009, 07:48 AM
Hey thanks for your quick replies,

Yeah even my dad suggested spray-painting but would the paint stick?


Well, I was thinking of flat. Is it possible to get Gloss/Mirror on a plastic subject? BTW, I haven't really painted anything myself :D...How would the other effects, apart from flat, look like on plastic? I think I need a picture of my PC...
It would be harder, but totally possible with enough polish and sanding. It also depends on the plastic, skill of painter, and effort. I can't say "they'd all look great!!11!eleven!1" not knowing what you can do.

bartos
July 11th, 2009, 01:14 PM
I know a guy who dismantles his laptop every few months and just spray paints it.

Most of the time it looks good ;)
Jason, you know who you are!

b@sh_n3rd
July 11th, 2009, 02:16 PM
zipperback, thanks for those links. I checked em out and it does reassure me with a thought of mine. And sure, I'll post images of it when I'm done :D

PurposeOfReason, I wanted to just change the colour of the panels without removing the existing texture of the plastic. I think it's rustic. The thing is, a too thick coat would make it really flat. Oh and I'd suppose my dad would paint it while I accompany him as he's more experienced in this aspect :D

bartos, well that post certainly strengthened me in the aspect that my PC would look good :D. But how is it possible to dismantle the case of a laptop and paint it? And is the case plastic or metal or what? I don't really like laptops so I'm not very good at "laptop-know-how" :D

Anyways, I've attached pics of my PC and my desktop. I apologise for the crude arrangement around my PC though. Now compare the pic of my PC and the screenshot of my desktop and tell me, does that go? :D

koleoptero
July 11th, 2009, 02:59 PM
There exist stickers for laptops that cover the entire surface. Google it.

tjwoosta
July 11th, 2009, 06:30 PM
I painted one of my machines once with some regular black gloss spray paint from wallmart, but after three weeks of curing the paint on the keyboard would still rub off onto my hands. So I highly reccomend going with one of those paints zipperback mentioned.

swoll1980
July 11th, 2009, 06:33 PM
Clean it, sand it, clean it again, spray paint it.

MaxIBoy
July 11th, 2009, 06:37 PM
You might be able to get away with decals.

Or, depending on how much heat the thing puts out, you could stash it somewhere out of sight.




Thought I might suggest an alternative.

jonian_g
July 11th, 2009, 06:48 PM
There exist stickers for laptops that cover the entire surface. Google it.

+1

Easy, fast and it will have better results since you don't have painting experience.

bartos
July 11th, 2009, 07:02 PM
b@sh_n3rd


well that post certainly strengthened me in the aspect that my PC would look good . But how is it possible to dismantle the case of a laptop and paint it? And is the case plastic or metal or what? I don't really like laptops so I'm not very good at "laptop-know-how"


Laptops are easily disassembled for repairs. My friends is a Dell Inspiron. His looked best RED.

If you are modifying your case, maybe add a window or some punched louvers before painting. The fronts from cd /dvd rom trays just snap off( pull up on them while pulling out the bottom.they slide up)Seize the moment.

b@sh_n3rd
July 11th, 2009, 07:09 PM
No opinion on my last Q? does my physical PC go with my Jaunty installation? :D Anyways,

tjwoosta, I'm curious, how did you paint your keyboard? And keep the lettering too?
swoll1980, hey can you really sandpaper the plastic panels of a PC? I'd thought not...Do I need to anyway? (might sound a dumb Q but I like this comp quite alot...too much you might say :D)
MaxIboy & jonian_g, if by any chance you guys think my PC's a laptop, it's not. It's a desktop :D. I don't quite like laptops anyway...they are rather limited too...

...maybe add a window or some punched louvers before painting...
What do you mean by this? My DVD-RW has an extra black bezel. It came with that but I switched it for the white coz my PC's white. So that's not a prob. Only prob is, my floppy drive (which I just remembered about). It came with the PC and that's white. Now if I make the whole PC black and that's white, that'd be simply awful right? any ideas on that? Thanks...

swoll1980
July 11th, 2009, 07:20 PM
swoll1980, hey can you really sandpaper the plastic panels of a PC? I'd thought not...Do I need to anyway? (might sound a dumb Q but I like this comp quite alot...too much you might say :D)


Sure you can, and you should if you don't want the paint to peel off. We're not talking about putting gouges in it. Some fine grit sand paper will be fine, and won't cause any damage.

tjwoosta
July 11th, 2009, 07:33 PM
tjwoosta, I'm curious, how did you paint your keyboard? And keep the lettering too?

lol, who needs lettering? I just disassembled the keyboard and painted each piece separately. I was just going without key lettering, but im sure you could get some keyboard stickers or something.

As far as sanding just use some fine grit sandpaper, just enough to scuff up the surface so the paint will adhere but not enough scratch grooves into it.

HappinessNow
July 11th, 2009, 07:38 PM
Well, I was thinking of flat.

I suggest sand blasting it for a nice matte/flat finish.

PurposeOfReason
July 11th, 2009, 07:43 PM
Whatever you do don't paint it, paint does not adhere to plastic well at all. What will inevitably happen is the paint will begin to flake and look worse then it does now.

I suggest sand blasting it for a nice matte/flat finish.
I have over 20 cases that disagree with you. Yeah, if you just go and paint it straight up it will flake, that is true of anything. Take time, know what you're doing, and you're fine.

b@sh_n3rd (http://ubuntuforums.org/member.php?u=798732), many thin coats will keep the texture. Thin as in don't even try to get color out of it. Just keep adding very small coats.

tjwoosta
July 11th, 2009, 07:47 PM
Like I said on the previous page, you dont want to use just any regular old spraypaint, use something made specificaly for plastic like zipperback pointed out. (assuming your case is plastic of course)

bartos
July 11th, 2009, 07:52 PM
Originally Posted by bartos
...maybe add a window or some punched louvers before painting...

Use a Dremel or rotary cutter to cut a window in the side the rivet or screw a piece of plexiglass in. Some machine shops can punch louvers in the side for you like what is on your washing machine back or old cars. A nice row on the bottom will help air flow and look cool. You can swap black and white tray covers but any other color and you are painting. I would disassemble the floppy to paint front and door.(And why do you still have a floppy. Replace it with a multi-card reader.)

P.S. Opinions are like heads, everyone has one.:lolflag:

DownTown22
July 11th, 2009, 07:54 PM
I've done a lot of paining of plastic - mainly for car/truck interiors.

What you want to do is give it a sanding (I used Scotch-Brite pads - abrasive plastic) to rough up the surface and remove any gloss, etc that might be on there. Then I give it a cleaning, to remove any leftover dirt, etc. Then to paint it, you have to use a paint for plastics - usually they're a very thin paint.

To do my painting, I had a small paint gun (about the size of a fist) that I hooked up to an air compressor with a regulator in between to turn the pressure down.

I usually ended up giving things 2-3 coats, depending on how much of a colour change there was. Also, with most of those plastic paints, the more you paint them, the darker they get.

b@sh_n3rd
July 11th, 2009, 08:22 PM
Originally Posted by bartos
...maybe add a window or some punched louvers before painting...

Use a Dremel or rotary cutter to cut a window in the side the rivet or screw a piece of plexiglass in. Some machine shops can punch louvers in the side for you like what is on your washing machine back or old cars. A nice row on the bottom will help air flow and look cool. You can swap black and white tray covers but any other color and you are painting. I would disassemble the floppy to paint front and door.(And why do you still have a floppy. Replace it with a multi-card reader.)
P.S. Opinions are like heads, everyone has one.:lolflag:
Great idea, but I might have a prob. Anyway, I do have a nice grill at the front...Oh and as I said before it's an old PC. To convince you, Manufactured Date: 06/06/1998 Metal Frame MfgD: 15/05/1998.

Something tells me no one checked out the pic. That would have shown if my PC was plastic and how old it was :D