How to distinguish between good and bad quality of mica board?

The first thing is to look at the appearance of the mica board. The appearance of the mica board should be lubricated and flat. Those with dents, scratches or other marks are basically inferior. Likewise, the appearance around the cross cut should be neat. Some rough surrounding appearance will have burrs and some will stick. Mica sheets are available in aqua green, yellow, black, white and other colors. Mica sheets should look uniform and full. Mica board has high strength and good compression resistance. In the process of testing its characteristics, you can also test whether it has a slight bending or force, weak and easy to bend the quality is not good. Mica board is waterproof, chemically resistant, and can work properly under wet and cold conditions. Therefore, this can also be used to test its characteristics. As an insulating material, it is necessary for the insulation function to be outstanding and non-conductive, even in harsh environments.　　

The quality of mica board basically depends on the above points. It is assumed to be outstanding if it has beautiful appearance and outstanding physical and chemical functions. Many defective mica boards can be seen from the exterior. In the mixed market, when you need any product, you also need to learn the corresponding common sense to avoid being scammed by others.