The first thing I would recommend is getting rid of the peel ply supplied
with the Kit and replacing it with peel ply from Aircraft Spruce, in
several widths. i.e. 2" and 3" . The larger widths are great for the
wing skin lay ups and other od shaped pieces that require a complete
covering of peel ply. The stuff from Aircraft Spruce wets outs out just
like a layer of glass cloth, you can see if the peel ply either too wet
or dry...very nice indeed. You will find that it also is free from
frayed ends/sides and it is easily removed after cure.
The second layer of glass needs to be approximately 1cm shorter than the
first layer anytime a subsequent layer of glass will be bonded to it
after cure or a transition is desired, hence the need for peel ply. i.e.
when laying up the first side of the fin you would stagger the glass by 1
cm to allow a nice transition for the glass from the second side of the
lay up.
To get rid of the excess cured resin as a result of using the peel ply
supplied with the Kit I would recommend using a razor blade held
perpendicular to the skin and scrapping it along the affected areas.
What's nice about the razor blade is that it only shaves the high spots.
Once you reach glass you will notice it immediately, then stop. You can
then finish up by sanding to get a uniform surface.
As far as the blue strands are concerned, try and remove as many of them
as possible. However, if you are going to bond another layer of glass
over the area I wouldn't worry about a few strands here and there. Using
the above razor blade technique also seems to work quite well in removing
the strands. First and foremost get rid of the blue peel ply and try the
stuff from Aircraft Spruce. You won't believe the difference it makes
it's incredible!!!
Well I hope the above help you with your project. Keep at it , it's well
worth the effort.
Erich Trombley
Builder A28
Tucson, AZ
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