Glastory 
One of the most burning topics in the glass industry is whether anisotropy is a defect or not? The industry is puzzled because of a lack of standardization. What can we do?
Markets demand increasingly more quality from glass suppliers. Sometimes, you can see weird strain patterns or rainbow-colored streaks in the glass, especially when viewed at a close angle and in polarized light. This is called glass iridescence. And here’s how to get rid of it.