Finishing

[David Flynt]

Lance,

Auto-air colors is not fuel proof, but the finish can be made fuel proof
with a polyurethane clear coat.

I have not used this for a pattern plane, but for foamies.  It has a few
downsides. For example it does not dry fast, and some of the colors require
heat to dry.  I could not get this stuff to atomize as well as the rc flying
colors that Radio South sells, and it definately does not stick as well
(masking can be very frustrating).  However, I think with experience, the
right reducer (not water) and absolute clean 600 grit prepped surface, it
will stick well enough for our needs.  I used it straight without reducer,
but the manufacturer sells a reducer for this.  I think that may make it a
little toxic, not really sure.

The upsides to this product is that there are so many nice colors, very
small quantities can be purchased, and it is safe enough to use with a dust
mask.  The isocyanates in the two-part clear on the other hand is quite
dangerous.  So if you are going to be exposed, then it does not really
matter that the colors are safe.  I also wonder whether it is truly much
lighter than say a base coat clear coat polyurethane, or even a single stage
paint such as the Radio South paint.  I recently covered a 2m Supreme with
less than 3 ounces of total paint of the RC flying colors, and that included
a clear coat over the colors.

It is interesting stuff, but I think I would choose a polyurethane because
it performs so well.

You should see the web site.  The example projects are impressive.
http://www.autoaircolors.com/

David


  -----Original Message-----
  From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
Behalf Of Lance Van Nostrand
  Sent: Sunday, December 11, 2005 8:28 PM
  To: discussion at nsrca.org
  Subject: Re: Finishing


  So this stuff is fuel proof?  Does it mix with a hardener or just cure
with heat and water evaportation?  I'm skeptical that something that doesn't
crosslink can be fuel proof, but maybe this stuff actually cures into
polymer chains like polyU glue?
  --Lance

    ----- Original Message -----
    From: Koenig, Tom
    To: discussion at nsrca.org
    Sent: Sunday, December 11, 2005 7:45 PM
    Subject: RE: Finishing


    Steve/all,

    I have clear coated a few planes for a friend of mine who uses the
createx stuff. I just used an automotive two pack clear coat. It comes up ok
but is very dependent on the skill of the 'createx' applicator! If it is
applied to dry and the prep work sucks-no amount of clear coat will make it
look good.
    Infact I was blamed for the paint job!!! Nowadays-he takes his planes to
a professional auto shop-and they charge him a packet of money with the same
result. Works for me as its less possible exposure to the nasty stuff.

    I also believe there may be some adhesion problems with createx if not
applied correctly.His stuff I've seen flake off ( i.e.; prep work!!!)

    My recommendation is to use the 'clear over base' system and just
minimize the clear as it now no longer serves as a fuel proofing agent.

    Tom
      -----Original Message-----
      From: discussion-request at nsrca.org
[mailto:discussion-request at nsrca.org]On Behalf Of Steven Maxwell
      Sent: Monday, 12 December 2005 12:24 PM
      To: discussion at nsrca.org
      Subject: RE: Finishing


       Nat over the last couple of years I have been playing with Createx
Auto Airs http://www.autoaircolors.com/ they are water base paints that is
used for airbrushing although they do need a clear coat to bring to a shine.
They are extremely light and easy to use they just look dull as applied.
They can be mixed and matched to anything and have 128 colors to choose
from, theres a dealer you'll find on there dealer page called Dixie Art
Supply in New Orleans http://www.dixieart.com/CreatexAutoAir.html I have
only cleared with Lustre Kote which is not recomended by them, but maybe for
the electrics you won't need the clear. Good luck.
       Steve Maxwell


        ----- Original Message -----
        From: Nat Penton
        To: discussion at nsrca.org
        Sent: 12/11/2005 10:28:25 PM
        Subject: Finishing


        I don't know whether to use polyurethane, latex, watercolor or
crayola. These electrics present all kinds of problems.
                                                                Nat
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