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Spray can problems

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  • Member since
    November 2005
Spray can problems
Posted by Anonymous on Saturday, June 28, 2003 6:09 AM
OK, I'm new to spray painting, and I have to spray outside due to strong spousal objections.
I have a large plastic model I already primed with Testors no problem, but when I sprayed on Testors Gloss White I got large spots of paint with the fine mist. Is that the way cans are, or is it me or the outdoor atmosphere?
I also have a small prepainted diecast that I had masked off and sprayed under the same conditions with Testors Gloss Black. This time I had tiny bubbles on the surface.
Both models were brought inside soon as they were painted. I'd really appreciate any ideas or suggestions.
Thanks

Jon
  • Member since
    February 2003
  • From: USA
Posted by Holley on Saturday, June 28, 2003 6:43 AM
Jon,
First before spraying, shake the paint vigorously, then shake it some more. Then you can soak the can in very warm water for a while to help heat it up. Then shake it some more. I assume that you are painting on a very clean surface, if not, you need to wash the model and let dry thouroghly. This will give you some time to shake the paint some more. If the spray nozzle is dirty, soak it in thinner to loosen up any dried paint. While the sprayer is soaking, shake the paint ! I hope this helps some, Did I mention to shake the paint ?????
Holley When all else fails, read the instructions!
  • Member since
    March 2003
  • From: Maine,USA
Posted by dubix88 on Saturday, June 28, 2003 9:16 AM
HEY,
This has happened to me alot. All i can say is shake it up. Soak and shake. You may still get a couple of bubbles but that just means you have to shake it more.

Randy
THATS MY VOTE "If a woman has to choose between catching a fly ball and saving infant's life, she will choose to save the infant's life without even considering if there is a man on base." -Dave Barry In the words of the great Larry the Cable Guy, "GIT-R-DONE!!!"
  • Member since
    January 2003
  • From: Washington State
Posted by leemitcheltree on Saturday, June 28, 2003 7:14 PM
Jon,
The previous two posts are pretty much correct - shaking the can is very important for complete paint/gas mixing, and heating the can is very important as with the perfect gas laws, increase in temperature means increase in volume of the gas, which means a higher pressure inside the can, which means a greater atomization effect for the paint.
Always try to paint outside on days with very low humidity, and a rather low temperature differential between the outside and inside - if you paint outside and it's cold, then bring the painted object inside, it's like walking inside to a warm room from a cold outside when you're wearing glasses - what do they do? They fog up.
This can cause "blooming", or slightly discolored patches because of the humidity.
All this means you might need to paint only when the conditions are perfect, or why not try to make or buy a spray booth - they take the nasty fumes and vent them to the outside. I use one and we never smell anything inside.
Cheers,
LeeTree

Cheers, LeeTree
Remember, Safety Fast!!!

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