Avoid shaking the containers before mixing
Steady handing during mixing can prevents the increased under mixing of air bubbles
it can be helpful if you preheat the resin and hardener in the container in a warm water
before processing
4. Some objects can sometimes release air bubbles into the resin during the casting process.
This can be prevented by sealing these objects in advance with a thin layer of epoxy resin.
5. In difficult cases you can also remove the air bubbles with a vacuum pump
UniSil provides a type of easy bubble release epoxy resin. In any case you are interested, you could contact with us for details: