Sunday 21 March 2010

Pinholes and thermofoam

Hi,

I'm back at work, slow but steady. Latest news, I changed carbon form twill to unidirectionl ; it's two layers of unidir at +/- 45° sewn together. It avoids the pinhole problem. Remember the youtube vid where there put an extra layer of kevlar to assure water tightness. The reseller said it'll be a bit more difficult to use though.



I also ordered Airex R63 thermoforamable foam, it seems to be the best solution, but I'll tell you as soon as I get it and do a test.

I'll do the curing at 60° myself, so I bought polystyrene boards to build the oven, that'll need testing too !

On  more point : if you choose to do this, don't copy me and skip the male mould to build a female mould from scrap. It's so much harder to carve concave shapes and to make it slick...

Spring's already near, but I'll be sailing on my 470 in stead of a moth for a while more.

thank's for reading.