Re: Os film covering adhesive

From: Don Slusarczyk <don_at_slusarczyk.com>
Date: Fri, 03 Jan 2014 18:09:04 -0500

Yes 4 thinner to 1 glue for start for OS film or maybe 3:1 to start , it
is always easier to add more solvent! I use a thinner mixture ratio for
Y2K2. The solution will have no real tackiness when you feel it on your
fingers, that is why you have to wait about 30 minutes to let the
solvent evaporate completely and see what is left holding the wood to
the film and the strength of it. I cover with plastic exactly like I do
with microfilm using a brush to apply the mixture around the outline and
the wing upside down and then use tape to slack the edges. I wait a good
30 -45 minutes before cutting out but before I do, I flip the frame over
and look from the top side down to ensure I can visually see the film
attached to all the outline. If I see a questionable spot I apply more
mixture. As far as weight saving you can actually easily over do it by
saturating the wood with too much solution and you add dead weight. Kind
of like the old condenser paper days and too much shellac. The dilute
spray solution for me works best on Y2K or Y2K2 film as it acts much
like microfilm when you apply the solution it wicks in and you can watch
the wicking action then you apply the next drop a few inches away. I
find OS film a bit thicker (at least my roll is) and I have to use a
stronger mixture and it does not wick very well so can easily be over
applied which I did to my F1L wing. My current preference with OS Film
actually is to just use spray adhesive then drop onto the film that is
on a frame. Then if I mess up putting it on the film I can run straight
thinner around the edges and reposition as needed, kind of a hybrid
cross of the two methods.

Don S




> Thanks Don Is that 4 parts thinner to 1 part adhesive? Any other
> pointers do i apply just fame on film and run adhesive around frame
> like we used to do with microfilm before we started using film on
> frame metod. How long is drying time before trimming. Do you find
> waight savings by using this method Vlad
>
> __._
Received on Fri Jan 03 2014 - 15:07:36 CET