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air brush problems

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  • Member since
    November 2005
air brush problems
Posted by Anonymous on Saturday, April 26, 2003 6:43 PM
I am kind of new to using an airbrush. I have a model that unfortunately is extremely hard to find, and even more unfortunate it is molded in green. When i air brush the body there are parts of the model that don't seem to hold the paint. the flat surfaces work fine, but curved areas dont work. First is there anything i can do to salvage the model, maybe sand off the paint that is on there and try again??? any ideas?>?

thanks
  • Member since
    December 2002
  • From: USA
Posted by naplak on Saturday, April 26, 2003 6:51 PM
Did you prime it before painting?

First... clean the plastic with a mild soap solution; rince it completely, and let it air dry. Then prime it. I use Alclad Primer, but there are a lot of good primers. Chances are someone else here will tell you the same thing.

That should solve your problems.
www.naplak.com/modeling ... a free site for modelers www.scalehobby.com/forum/index.php ... a nice Modeling Forum
  • Member since
    November 2005
Posted by Anonymous on Saturday, April 26, 2003 8:22 PM
after posting this, i cleaned the plastic with some air brush thinner, and my model is down to bare plastic again. I will try to prime it tomorrow, then re-paint again. hopefully this will work...i have another model molded in the same color, i will try that first

thanks for your help
  • Member since
    February 2003
  • From: USA
Posted by Holley on Saturday, April 26, 2003 10:27 PM
Be sure to wash in gentle detergent first. Oil from your skin is almost as bad as mold release agent. I have had luck with using a flat light gray primer to give the final coat some 'teeth' to grab hold of.
Holley When all else fails, read the instructions!
  • Member since
    February 2003
  • From: New Zealand
Posted by nzgunnie on Sunday, April 27, 2003 4:10 AM
Instead of using detergent you might like to try Isopropyl Alcohol, it evapourates much faster than soapy water. But I have used both methods with success, just be sure to let the model dry thoroughly, nothing worse thank finding a litle bit of water traped in a corner somewhere, that will really give your paintjob problems!
  • Member since
    February 2003
  • From: East Bethel, MN
Posted by midnightprowler on Sunday, April 27, 2003 6:21 AM
Also, make sure your paint is thinned to the consistency of whole milk, if it is too thin, it will run and not cover properly.
Lee

Hi, I am Lee, I am a plastiholic.

Co. A, 682 Engineers, Ltchfield, MN, 1980-1986

1 Thessalonians 4:13-18 1 Corinthians 15:51-54

Ask me about Speedway Decals

  • Member since
    November 2005
Posted by Anonymous on Sunday, April 27, 2003 4:29 PM
Watch out!!!!!! Cleaning a model with thinner??????? If I where you, I won't try it again?
If you put your model in breakfluid for about 24 hours almost all the paint will be gone, and it's safe for your plastic.
Big Smile [:D]
  • Member since
    January 2003
  • From: Washington State
Posted by leemitcheltree on Sunday, April 27, 2003 9:04 PM
Rutan,
Cleaning the model with thinner should be ok if the thinner isn't "hot" like acetone or turpentine. ALWAYS experiment first.
Cleaning the model first is very important - as the others have said, detergents, rubbing alcohol and the like can prevent "fish eyes", little spots where paint won't stick. You can't often see it, but finger oils can cause these fish eyes.
A good light gray matt or white matt paint are probably the best primers - a light coat on plastic that's been carefully rubbed with 1000 wet or dry helps adhesion with the primer.
Good luck,
Tree

Cheers, LeeTree
Remember, Safety Fast!!!

  • Member since
    November 2005
Posted by Anonymous on Tuesday, April 29, 2003 6:05 AM
i decided to spray the car with blue paint the next day and the car came out almost perfect. i am very happy with it. I have spent another small fortune buying the same model again because i really want a yellow one...a lotus esprit 300 sport is the model. if you guys want i can take a picture of it... i have not buffed it yet because the paint is not quite ready for that, but it still looks great.
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