birdwatcher
Well-Known Member
I read that water must be used to prevent dust from floating up and into the lungs, and also to prevent overheating of the acrylic. But would water be absorbed into the acrylic? Or would the polishing remove it faster than the water can seep in? I want to build a lens, which probably requires different optical tolerances than most windows, but I could not think of anyone who would be more of an expert on this topic. Maybe I should use a mold instead, but I'm worried about introducing air bubbles into the liquid acrylic.
