REFLECTOR: Awlgrip Painting

[Scott Derrick]

Ron,

Its been awhile but I remember throwing about a cup away.  .35 gallons 
is 70% efficiency(sic?) for a cheapo Harbor Freight HVLP sprayer.

I figured 3.5 to 4 gallons to paint my V, but I fudged and rounded up.  
I would hate to get all prepared, get 3/4 done and run out!

Scott

Ron Brown wrote:

> Scott,
>
> I calculate that you painted 70 sq feet  and that it should have used 
> 0.35 gallon assuming 100% of the paint ended up on your canard and 
> cowls.  Not too far off.  Did you throw any away or did you keep 
> shooting until your half gallon was gone?
>
> I'm planning to calculate how much paint I need by tracking the square 
> feet I will paint.  Did the same thing when laying up cloth and epoxy 
> - weighed the cloth then with my electronic scales, mixed the same 
> weight of epoxy - I didn't throw away much!!!
>
> The trick will be to see what the application efficiency is - how much 
> paint does it really take to cover per square ft?
>
> Ronnie
>
>
> ----- Original Message ----- From: "Scott Derrick" <scott at tnstaafl.net>
> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> Sent: Sunday, June 19, 2005 8:28 PM
> Subject: Re: REFLECTOR: Awlgrip Painting
>
>
>> Ron,
>>
>> I'm painting a Std and figured twice that amount of paint?
>> It took a 1/2gal.  mixed for me to paint my canard and the Cowls.  
>> maybe I waste a lot?
>>
>> Scott
>>
>> Ron Brown wrote:
>>
>>> Bob,
>>>
>>> Lots of great information!!!  Now you are making me nervous about 
>>> shooting it myself!!!!  At $200 a gallon, I don't want to be 
>>> "practicing" too much with this stuff.  But the boat folks say the 
>>> Awlgrip is the supreme paint for boats.
>>>
>>> Your wings are looking great!!!
>>>
>>> Are you using the standard reducer - T0003?  Are you having to use 
>>> any other additives?  You mention Florida several times - it can be 
>>> just about as hot and humid here in North Carolina this time of 
>>> year.  Did you stick with Awlgrip's recommended maximum 50% RH - or 
>>> have you been able to establish a higher RH that you have been able 
>>> to get away with?
>>>
>>> I think your statement "Coat continuation" means that you could 
>>> paint a portion of the a coat (like say the fuselage top), then 
>>> remove the walk boards, clean-up, and then continue completing the 
>>> coat onto the strakes and fuselage bottom, provided you don't wait 
>>> more than about an hour to continue on with the strakes and bottom.  
>>> Otherwise, the paint "seam" between the fuselage top and strakes 
>>> will not blend together."  is the key to painting the top of the 
>>> fuselage using a walk board, then the sides.  And bottom too. 
>>> Perhaps I need to include the ability to lift the nose and keep on 
>>> shooting until the bottom is done too.
>>>
>>> I would ask you how many gallons you have used, but with reworking 
>>> your wing, your count probably won't help much.  I think I will try 
>>> painting bottoms first - allows the wings to be kept flat with less 
>>> runs.  Like I said, if it turns out too ugly, I'll get a pro to 
>>> shoot the tops - but I have built the whole thing so far (well I 
>>> cheated and got fast build wings and fuselage - I HATE SANDING AND 
>>> FILLING - too many hours on sheet rock - although I am getting much 
>>> better at it!!!)
>>>
>>> The application guide says 210 sq feet per gallon of mixed paint and 
>>> converter and reducer.  So measuring the surface areas, I get 2.2 
>>> gallons of mixed paint or 1 gallon of color, one gallon of 
>>> converter, and 1/2 gallon of reducer = 2.5 gallons. That's assuming 
>>> using a good HVLP gun and getting most of the spray on the 
>>> surface.   (173 standard fuselage measures - approximately 475 sq 
>>> feet).
>>>
>>> For those of you considering the Awlgrip system, there is an on line 
>>> Application Guide at 
>>> http://www.awlgrip.com/pages/app_guide/chap1.htm (One of the boat 
>>> yards calls Awlgrip the Mercedes of marine paints). Extremely tough 
>>> and glossy with a long service life.  But difficult to repair 
>>> scratches, etc.
>>>
>>> Ronnie
>>>
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>
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