BARRY CHECK 6
Joined: 15 Mar 2011
Posts: 738
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 Posted: Sat Nov 05, 2011 2:30 pm Post subject: Weight of paint |
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Phil:
Read the side of the paint can. It will say the amount of SOLIDS in the paint. Everything else is MOBILIZATION AGENT.
Mobilization Agent - EVAPORATES.
Now Weigh the can of Paint - Unfortunately this will be a weight of BOTH the Paint & Can.
Getting critical here - Go to Lowe's or Home Depot and get an EMPTY Can.
Total weight - Can weight = Paint Weight
Paint weight * Percentage of solids = Weight of DRIED PAINT.
Primer Should weigh more than the top coat paint.
SAND the primer with Wet/Dry paper - WET.
And TWO THIN coats of primer with a sanding in between gives a better finish.
Better bond. Better finish. Less weight than only one coat.
Painting is Painting - The big difference is getting the paints to bond to aluminum.
Most people choose a ETCHING primer. The other way is to Chem Film Coat the aluminum. This is difficult since the plane is built. 
Barry
On Sat, Nov 5, 2011 at 2:47 PM, Philip Smith <madriver42(at)gmail.com (madriver42(at)gmail.com)> wrote:
[quote]
Been in a couple of arguements about the weight of a paint job on a 701.
Some say the the liquid evaporates and the resulting "skin" of paint is very light - probably the ones who don't do another weight and balance after painting and or installing the fire extinguisher, intercom, entertainment center, extra radios, GPS, interior seats and trim.
Others state about 20 to 25 pounds of weight is added to a CH 701 type. What have you personally seen and weighed on your plane. My 701 weighs 594 lb empty with no seats, trim etc..
I would do a class job with one coat of primer and a good top coat of finish. Any guidance out there. Is there one system that is lighter and or better etc.
Your valued thoughts on paint weight vs polishing with a minimal amount of trim paint...please.
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