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So.. does anyone know anything about painting?

post #1 of 5
12/30/11 at 1:23am
Thread Starter 

Anyone a bit of a hobbyist for painting and crafts? Auto repair, whatever, etc. 

 

I'm looking to COMPLETELY strip everything off this receiver's cover/coating and repaint it. It's pretty much gray on the inside (metal) and the outside is black. It's got some scratches and stains on the side. Not that looks are important to me but I'd like strip off the current layer and repaint it rather than paint over it. 

 

 

imag0339ey.jpg
 

 

I know the very basics like car painting but I've never done it before. I'd rather ask instead of running into problems with my very beloved receiver. This receiver is old but high quality so i don't want to damage the cover. That would suck.. no replacement parts. 

 

 

I'm thinking a basic wetsanding and stripping off the black paint. Spray primer. Sand it down. Paint over it with 1 coat of black. Sand. Another coat. 

 

Not sure what kind paint is needed for electronics but the color would be best if it stayed matte black. I might consider gloss black cause the front panel is glossy but I'd like to know if anyone has any input here?

 

 

 

Would anyone recommend against using airplane paint stripper instead of sanding it down? I messed around with this stuff years ago when I bought a used motorcycle and the previous owner had painted the rims red. :o Yeah, I just took the rim and sprayed airplane paint stripper until the paint literally started to melt off. Not sure what kind of damage it does though.. 


Edited by pancakeplease - 12/30/11 at 1:32am
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post #2 of 5
12/30/11 at 1:59am

 

Well my brother is a spraypainter, might still be an apprentice, don't know if he's a fully qualified tradesman as of yet.

 

Either way I think a proper 2 pack spray or powdercoat or similar would be the way to go, not really DIY though.

 

I know he sprayed a metal jiffy box for me once to see how it would turn out.

 

Was going to be a stomp box to match a guitar in the same finish for my sister, however she gave it up before I'd finished.

 

It was a pretty complex spray with multiple coats, it was primer, a metallic orange base coat, then glitter, then the clear coat. The corners were by far the hardest and didn't work out 100% as when sanding between coats they were sanded back slightly too far as it was very easy to do. Would have been possible but extremely annoying and painful to fix.

 

I think you may run into trouble on the corners and especially those vents, but it could be okay.

 

Either way I'm interested to see how it turns out.

 

What's wrong with the current finish ?


Edited by splaz - 12/30/11 at 2:03am
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post #3 of 5
12/30/11 at 7:50pm
Thread Starter 

Hmm I might call around and pay like $20 for someone to do it for me or just leave it. It has some scratches and stains and smells a bit odd so I wanted to redo the covering. 

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post #4 of 5
12/31/11 at 2:31am

dont know for sure, but unless you actually know someone in a spray shop who might do it for a slab of beer, i wouldnt think 20 bucks woiuld get you far in a developed nation for a process that involves machinery, setup, 2 lots of materials, perhaps masking etc

 

here 20 wouldnt come close

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post #5 of 5
1/5/12 at 6:21am

I've done a bit of spraying.

 

My first recommendation would be to get it bead (or shot or sand) blasted and professionally powder coated.

 

You can get a good finish using spray cans but you have to take a lot of care with getting everything absolutely clean, priming, rubbing down, priming, rubbing down, priming, rubbing down, wiping with prepaint cleaner, spraying, rubbing down, spraying... until you're satisfied with the finish, and of course you have to wait between coats for drying. Even then it will be a while before the smell goes away and you need to take care with a mask, work in a well ventilated, warm environment, don't breathe the solvent it'll kill your kidneys...

 

The big problem with an item like the one in the picture is all the ventilation holes. Paint will tend to pull away from the cut edges and puddle a short distance away so you have to apply it very sparingly in several coats.

 

It looks pretty much OK. You could give it a good clean with warm water and washing up liquid, leave it to dry, and fill in the scratches with a Sharpie permanent marker smile.gif


Edited by wakibaki - 1/5/12 at 6:23am
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