Hi I am a NEWBIE sot I may of missed something on the website. Here are some question I cannot find the answer to

1. What is the flexural stiffness  and effectivedensity of the sheets  (fibre+resin fill) ?

2. What do the above parameters change to for wet lay up material ?

3.  I understand that the gibres are at 0/90 deg.    Can layers  +/- 45 deg fibres also be introduced ?

4.  What is the impact of using kevlar/carbon material on the flexural/density  properties.  I understand that the increased toughess is useful in KAYAKS, helmets etc.