Painting

A place for general potato gun questions and discussions.
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Meat
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Mon May 09, 2011 10:39 pm

I've built spud guns before and I always have painted the PVC after it has been cemented and cured. I usually just lurk the forums, so I made an account just to post this question: Can I paint the separate parts before cementing them? It's probably yes, but I was wondering if the paint would do anything to upset the cementing process of the PVC... I could do a better job with individual parts, and I don't want it blowing up on me if the paint messes up the strength of the gun.
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Technician1002
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Mon May 09, 2011 11:13 pm

Keep the paint off the joints that you glue. The joint won't hold if you are gluing to paint. Simple masking tape on pipe and stuffing paper towels into sockets works for masking off areas to be glued. I presume you are trying to do something like this.
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Meat
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Tue May 10, 2011 11:09 pm

Yeah, basically, thanks :P
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hi
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Tue May 10, 2011 11:22 pm

Glue, then paint. The reason pvc cement works is because it binds the plastic together and that wont happen if there is paint in the way :lol:
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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saefroch
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Wed May 11, 2011 10:59 am

Or you could try dying it, I don't think that would interfere with the solvent welding process...
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Meat
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Wed May 11, 2011 10:42 pm

I think I'll just paint it after, I want two different colors, but I can mask it...


Thanks
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Gaderelguitarist
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Wed May 11, 2011 10:58 pm

Make sure you use a high quality plastic bonding enamel, or Rustoleum Professional Enamel, which I have found to work flawlessly for most any project.

Mask after the paint has fully cured. No need to have to repaint because you got impatience (like I do). Also I haven't personally tried it, but apparently Frog tape is the redbull of masking tapes. Blue painters tape is garbage.


On a side note, Meat, your avatar makes me smile.
so many muchness
shardbearer
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Thu May 12, 2011 6:48 pm

Vinyl dye can be applied, then glued, and is also the best spray paint possible for plastics. Not kidding.
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