If NASA can't get its foam right on the shuttle what chance have we puddle
jumpers??
I used the cheaper powdery refrigeration urethane foam on my turtle deck and it
is behaving the same as Mark's, that is, the resin and micro soaked component
is tearing away from the rest leading to bubbles. As fast as I repair one
another appears somewhere else.
On the other hand, I used expensive quality Divinylcell on my wings and have
had no problem except in one spot where I think paint thinner got through a
pinhole and dissolved a little bit leading to a "negative bubble" as though a
kid had pushed his thumb down. I can't recommend Divinylcell enough. You can
warm it and bend it to approximate wing profile to minimise sanding and it can
be bought with slots cut across it to allow even more curvature. It comes with
a light fibreglass backing that just needs a resin paint to seal. It surfoams
and sands really well. For Aussies, there is a Divinylcell manufacturer and
distributor in Sydney.
We seem to hear a lot about bubbles in KRs so I reckon use the best foam you
can get and minimise labour and repairs later.
John Martindale
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA
phone: 61 2 66584767 (H)
61 2 66869094 (W)
mobile: 0417 584767
email: johnja...@optusnet.com.au
web: www.members.optusnet.com.au/johnjanet/Martindale.htm
