I’ve been testing a new material:
SRPP: Self Reinforced PolyPropylene
This is a composite where both the matrix (resin) and the fibres are PolyPropylene.
It is the same material that samsonite uses for the new suitcases (branded as “Curv”): http://www.youtube.com/watch?v=zu8FFkCghUo
I found that sanding the stuff is extremely hard! I used a random orbit sander and it took me forever to sand these guys, and they still don’t look smooth. I tried 60, 120 and 240 grit pads.
So I would not recommend this material for building fins, but I wanted to share this.
So now the pics!
finFoil Output and fin panel:
Layers routed (of double foiled test):
The double foiled:
The single foiled:
Single foiled left, double foiled right:
And a special layup still to be tested with Textreme carbon inside (http://www.oxeon.se/index.php?page=textreme):
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