Pietenpol-List Digest Archive

Sat 09/17/05


Total Messages Posted: 1



Today's Message Index:
----------------------
 
     1. 07:30 AM - Re: Re: Re: DF weight (Rick Holland)
 
 
 


Message 1


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    Time: 07:30:25 AM PST US
    From: Rick Holland <at7000ft@gmail.com>
    Subject: Re: DF weight
    The PolyFiber people at Oshkosh gave me an estimate of around $3000 for a full PolyFiber job on an Aircamper (sounds high but thats what they said). If I spend around $4500 on the airframe without covering and $4500 on the corvair engine that comes to 25% of the cost. My current house was built 8 years ago and was painted with latex. I live at 6400 ft. (2000m) in Colorado with around 330 direct sunlight days per year. UV radiation intensity increases 10% per 1000 meters so I get 20% more than you lowlanders. The house gets no shade. Not only does the paint still look like new but I am unable to tell exactly where I touched up some spots last year with the original paint. If my hangered Piet is exposed a total of 100 hrs per year than I should be able to go 87.6 years and have it's latex paint see no more UV damage than whats currently on my house (I will be 142.6 years old then). And my house has also had to put up with rain, hail, snow, 60 mph winds, temps from 105 to -10, etc the whole time. On 9/16/05, Gordon Bowen <gbowen@ptialaska.net> wrote: > > --> Pietenpol-List message posted by: "Gordon Bowen" <gbowen@ptialaska.net > > > > Living as I do in an unpainted log cabin in AK, last latex paint I put on > the outside of a house was some years ago, but the exterior grade latex > paints seemed to be designed to all want to "chalk", therefore bleeding > out > some of their fillers/and or polymers over the years so the house remained > white or at least looking somewhat freshly painted until the next time you > had to repaint. You repainted when the paint looked kinda thin or started > to peel. > > Painting and/or recovering now 5 airplanes in my lifetime, I recall the > average cost of coatings for a fabric plane has been about $600.00, > including a good solvent based polyurethane/acrylate finish coat. In the > case of the Piete, the coatings costs was about 5% of the cost of building > the plane, due to using Stits as the filler coats. In the case of the > Osprey it was about 2%, and the Cozy less than 1%. Putting on a good > protective paint designed to last 20 years or more was the easiest and > cheapest part of building the airplanes. Many of the guys building > ultralights and some homebuilder designs like the KR use a solvent based > polyurethane over the fabric directly (no Stits or dope), it seems to work > fine. To each his/her own, we love the adventure of trying new ideas. > Gordon Bowen -Homer Alaska > Cozy IV N64CY > Osprey II N64SY > Pietenpol N-1033B > " There are no passengers on spaceship Earth, we are all crew", McLuhan > > ----- Original Message ----- > From: <bike.mike@charter.net> > To: <pietenpol-list@matronics.com> > Sent: Friday, September 16, 2005 10:42 AM > Subject: Re: Re: Pietenpol-List: Re: DF weight > > > > --> Pietenpol-List message posted by: <bike.mike@charter.net> > > > > > > > > > > From: "Gordon Bowen" <gbowen@ptialaska.net> [snipped] > > > > > > Still not sold on idea of putting latex paint on as the fabric > coating, > ain't latex paint water soluble? > > > > > No. Latex based paint is suspended in water until it sets. When the > water is allowed to evaporate out of the paint (paint drying), it sets and > becomes a large molecule polymer whose bonds are not breakable by water > immersion. > > > > If it were water soluble, latex exterior house paint probably wouldn't > sell very well, would it? > > > > Mike (one of many on the list) > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- Rick Holland




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