Conclusion? Spreading resin over panels
that have been delivered impoverished of resin from the factory
benefits the panels as far as I can tell. Because of the trapped
air in the lean panel resin, I would suggest the best result
would have been to have the panels fully resined in the beginning.,
but doing them up post delivery is better than nothing. If I
had it to do over again, I would deffinately have spent a few
days and a few hundred $$ worth of resin to be able to do it
on a flat, horizontal surface.
Since doing this experiment I have ground
off a lot of previous work on my first hull to expose panel surface
that I will cover with a thin bogg, resin mix (will only be using
bogg in the mix to help keep the mix from sagging out of the
weave where the surface is verticle) to try to fill as much as
I can below or near the water line. Then start over with the
bogg. This will all be done in evening hours of course.
If you have Duflex panels and are curious
about this aspect of them, you don't need the vacume pump and
bell jar. Simply using the tray and coloured water will indicate
if you have reason for concern. Just cut off one side of the
glass on any reasonable size piece of scrap and watch for an
Not all Duflex panels from ATL composits
have this resin shortage issue that I attribute to this kind
of permeability problem. My 19mm panels were filled beautifully.
Again.. see the "assumptions"
article, microscope shots. Heat used in the manufactoring to
speed curing may have a part to play in this problem as well.
Having resin rich panels will make them
heavier but the resin you have to install after the fact puts
any weight saved right back on.