Quote Originally Posted by bob joyce View Post
These tips might help (i make surfboards) For your bubbles... the best way to get rid of them is not to introduce them. Don't shake your resin (obvious) Stir your hardener in your resin by the "scientific" method. Slowly move the stick down the side, then across the bottom then up the side, rotating around the cup. Also scrape the side in a complete circle. Put your resin in the kitchen sink and warm it up.
Also Surf Source (on your side of the world) sells a surf board resin that does not need hardener. Just pour it and let the day light activate it.
for getting rid of bubbles get/build a vacuum chamber...and evacuate the resin for a few minutes after mixing and after pouring in the mold.

or if you do not have a vacuum pump let it cure in a preassurized chamber