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mirror finish on plastic

Now that is brave. painting laptop's..... wow Good luck! I would think you would need some kind of primer/sealer for the plastic before you attempt spray painting. I dunno sanding the plastic would help much if at all? sorry for the lack of help...
 
I suggest using a primer if you plan to have a very smooth surface. Follow that up with a good wet sanding, and then you can begin adding thin layers.
 
I've done plastic...

shinymouse02.jpg


sand away ALL paint currently on it (600 grit)... apply primer
sand primer smoothe (600 grit again) - first coat of paint
sand paint (1000 grit) - second coat
sand paint (1500 grit) - third coat
sand paint (2000 grit), rubbing compound, polishing compound


I don't know about metallic paint, but that works for plain glossy paint...
 
sanding is important, especially with plastic... the paint needs something to bite into. I also use aerosol adhesion promotor when spraying plastic. I have not yet had paint chip off of one of my projects.

Check out the pimp rig guides:
http://guides.pimprig.com/

Insomniac knows a ton about this stuff. His polishing techniques are based on using high speed polishers, though, but the prep sections would be good to follow.

Here's his working with plastics how-to:
http://guides.pimprig.com/pimprig_paintshop/how_to_work_with_plastics.php
 
If Krylon fusion comes in the colour you want, I recommend that. It says you don't need to sand the surface or strip it of existing paint; and you don't, but I would anyway for better results. Check out your local home depot and see if they have a demo of krylon fusion. The one near me took one of those plastic patio chairs, and painted half with krylon fusion red. It was hard to tell from anything but mere inches away which half was the original colour(and the only reason you *could* tell is you could see the seam, if they'd painted the whole chair, you'd NEVER know it was originally white).
 
Originally posted by That_Sound_Guy
Now that is brave. painting laptop's..... wow Good luck!
Click to expand...

hes not nearly the first person to do it...its not hard, you take it apart, paint the plastic, put it back together
 
Not hard, maybe, but painting a laptop's enclosure is far more of a commitment than painting a desktop case. Plus, you can't typically replace those cases for $50-150 in the worst-case scenario (assuming, of course, this isn't some 10y/o lappie).

Prep is a lot more important as well, due to the high-abuse and highly-handled nature of laptops.
 
just a note on metal flake paints. Always clear coat BEFORE wetsanding. Never sand metal flake paint directly, it will upset the tiny metal (actually plasitic) flakes and ruin the finish.
 
Originally posted by Caffeinatedsoap
Tawnos did you put a clear coat on that? How did it feel on your hand?
Click to expand...

no clearcoat, though in retrospect I prolly should have

and it feels surprisingly good... it takes a good 4-6 hours to get that slimy sweaty feel.... and I have sweaty palms when mousing...soooo
 
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