KR> Slick finish.

2010-02-17 Thread Dene Collett
Hi Mike
Over here we have been using the dry micro method over the layup for the 
construction of all Whisper motorglider wings, stabilizers and rudders. The 
surface is covered in a light "sacrificial layer of glass to cover any gaps 
in the weave of the heavier biaxial structural layer underneath. we then 
pour on a generous amount of dry micro and lightly massage it into the weave 
of the top layer. This goes a long way to eliminating pinholes and after 
sanding the wing down with a "longboard" untill roughly halfway through the 
sacrificial layer an 8m long wing can be faired to final coat stage with 
less than 1kg of resin/micro mix.
Regards
Dene Collett
Avlec Projects cc
Port Elizabeth
South Africa 



KR> Slick finish.

2010-02-15 Thread Mark Langford
Mike Sylvester wrote:

>The reason I ask is I attended a composite class while at Sun N Fun and the 
>speaker recommended, after wetting out the glass and sqeegeing off the 
>excess to pour dry micro balloons over the wing and brush it around to fill 
>in the weave.<

That method is mentioned in the old newsletters, so it must work.Micro 
is pretty cheap stuff, and that sounds awfully easy, so I'd say it's worth a 
try.  Who knows...you might reinvent another wheel for us...

Mark Langford
N56ML "at" hiwaay.net
website at http://www.N56ML.com