I have made kiteboard using vacuum bagging
Stack was as follow:
matt which soak resin (I forgot eng name)
2 x 200 g/m^2 glass fabric
wood, second side symetrically
As resin I used epoxy (with styrene), room temperature 17 deg, after applying vacuum I started to heat with something like this
for about 5 hours (about 40 deg?)
This is how it looked like in bag photo
After opening it loocked like this: photophoto
What happened? can I rescue it somehow? Maybe covering with polyurethane varnish will bring it to life?
How should I avoid this next time?
One more thing, I realized, that heater turned off after 1,5 - 2 hours. Mayby that caused that resin shrinked?