Replies

1. 
   jake_w | Sep 15, 2021 06:30pm | #1

   Saying you used epoxy is like saying you bought a piece of wood. Many different types of epoxy. If a vacuum chamber didn't help, find epoxy with a lower viscosity and a longer cure time. I would be looking at a cure time of over 45-60 minutes and a low viscosity, like thinner than honey (I assume you don't possess a viscoelastometer so i won't provide objective numbers)

2. 
   john_c2 | Sep 15, 2021 08:18pm | #2

   Most people use heat on the epoxy right after pouring to eliminate bubbles.

3. 
   hoovermd | Sep 15, 2021 10:52pm | #3

   West Epoxy 105 Resin with 209 hardener may be your friend....

4. 
   rob_ss | Sep 16, 2021 05:23am | #4

   Yes, you are missing something.
   If you put epoxy in a vacuum you will generate bubbles as the product gets hot during curing and the vacuum lowers the boiling point of the epoxy.
   When casting for turning, you need to use a pressure pot, not a vacuum. This results in minuscule bubbles or none at all.
   Don't be in too much of a hurry though - most resin casts are left overnight.
   Polyurethane resins bubble more than epoxies so are not suitable for decorative turnings.

1. 
   KennyBrown | Sep 16, 2021 04:23pm | #5

   AH! I did notice that the bubbling increased in the pot. Thanks!

5. 
   KennyBrown | Sep 16, 2021 04:23pm | #6

   Thanks everyone!