Quoted from MinnPin:I am mixing the portions of clear and hardener in one of those plastic automotive measuring/mixing quart containers, then pouring it into the reservoir on the gun and shaking it pretty well, which I understand creates bubbles. But I let it sit about 30 mins after shaking it up before spraying. I thought that would be long enough.
Don't Shake it, you need to use a paint stick to stir it together. That will eliminate your bubbles.