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sandbag23(at)msn.com
Guest

Posted: Fri Mar 30, 2007 12:14 pm Post subject: Paint

No metalflake.  A hand-made mix of PPG Aerospace paints.



 	  Quote: 	
		  If there is no metallic in the blue, it will be a lot easier to

match the color.



Gary

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aa1bflyboy(at)msn.com
Guest

Posted: Fri Mar 30, 2007 2:41 pm Post subject: Paint

Ah, this I wasn't happy to hear. I was hoping to do some paint work on my 

cowl which is painted a dark metalic blue. What's the best way to tackle 

this then?



If I'm right I have no need to be angry;

If I'm wrong I have no right to be...

Steve Roberts - AA-1B N9664L (at) ILG



 	  Quote: 	
		  If there is no metallic in the blue, it will be a lot easier to

match the color.



Gary

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GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Fri Mar 30, 2007 8:07 pm Post subject: Paint

The biggest problem with metallics is that the metallic particles never 

lay down the same way twice.  Another problem is, the metalic that was 

used to paint the first time will have different characteristics than 

the paint you use the second time.  For example, if you painted with a 

metallic paint made by PPG (or anyone else) last year, and bought the 

exact same paint in the same quantity today and painted it eaxclty the 

same, it would be close, but, a good eye can see the difference.



There are a couple of tricks to hide the differences.



(1) Well, first, I hope you didn't come to this site looking for 

political correctness. . . .   Doing a Mexican blend can help to hide 

some of the differences in the metallics.  OK, so, what's a Mexican 

blend.   For a Mexican blend, paint the area you need painted, then, 

add about 20% clear to the paint (sometimes, adding reducer will work), 

fog into the rest of the panel about 25% of the way, add 50% 

clear/reducer to that, fog to about half way, add more clear/reducer 

and repeat until all you're shooting is basically clear.  By far the 

toughest 'fix' I ever did was a door on a 67 El Caminio.  It had been 

painted in dark metallic brown Imron.  The paint was about a month old. 

  Neither I or Big John, one of the best painters I ever met, could get 

the door to match.  We ended up painting the entire side of the car in 

a Mexican blend.



(2) Painting to a body-line will fool the eye into thinking it's a 

different light reflection.  The hard part is painting to the edge 

without leaving an edge.



(3) Repaint the entire panel



What portion of the cowling is it that you need to paint?  Often, 

leaving the panel chipped or unpainted looks better than a bad paint 

job.



If the paint is chipping from poor prep, well, strip the entire part 

and repaint the whole thing.



==========

On a similar note, my plane was painted with a scuff a shoot.  All of 

the original paint is underneath.  The prep was average.  The first 

time I flew in the rain, a large portion of the paint chipped off the 

leading edge on the left wing.  I'm currently in the process of 

replacing the windshield.  The coving around the windshield looks 

pretty good for the most part.  Still, a lot of paint chipped off when 

I was removing the windshield.  The previous owner drilled holes and 

put snaps all over the place for a canopy cover: so, there are 5 holes 

in the area around the base of the windshield.  Brilliant.  Mine is 

painted a metallic red.  It's a standard Imron color.  In fact, I 

painted my cowling with the same color.  it's close, but not exact.  

So, should I strip the entire area at this point and prime it for 

future paint or just leave it until that time?  I'll probably just 

leave it.

--

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

GrummanDude

Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA

Posted: Fri Mar 30, 2007 8:22 pm Post subject: Paint

Was your VW a custom mix also?



--

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_________________
Gary
AuCountry Aviation
Home of Team Grumman

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