At 10:09 AM 1/5/2006, you wrote:
>         Ken Rand used waxed paper to do that. Peel ply is used
>to avoid sanding when joining two parts, Virg
>  I believe it is DACRON cloth
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++=

Use wax paper at your own peril !!  I used it ONCE and the da%* stuff
stuck to the glass.  I had to sand it off and that doesn't take into account
any wax it might leave if it does come off o.k.

The "deck cloth" is the only way to go for a top coat on a glass layup.
My entire KR is covered in deck cloth.  It comes in 50 or 55 inch
wide rolls (I forget which) so after I had the wing laid up on one
side I just covered it from root to tip with the deck cloth while the
resin was still wet.  The trick to getting out the wrinkles is to go
around the edges and pull them out.  After that use a dry brush
and brush down the entire layup.  Most of the resin needed to wet
out the deck cloth will be soaked from the layer below, depending
on just how much too much resin you used.  If you did the KR cloth
layup correctly and didn't use too much resin you may have to brush
on a bit of resin on any dry spots.  Covering the wood on the fuselage
with deck cloth, as I did,  puts a nice smooth finish on the wood
which will require little if any fill, adds a bit of strength and has not
cracked to date.  This insures a good moisture seal as compared to
paint that may crack and allow moisture in.  I'm sure it adds no more
weight than using other methods to seal the wood.

The deck cloth weave is about as fine as nylon stockings and needs
little if any fill.  Just shoot or roll on the primer and go.

On the peel ply,  use it on any joints where you have one layer overlapping
another or a where a glass layup ends such as wing to fuselage.
It will bring the two levels together and eliminate a lot of fill and sanding.
Brush it down on the glass until the peel ply is completely wetted out.

As always, your results may vary.  :-)

Larry Flesner


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