How to identify high alkali glass fiber
The simple method of testing is to put the fibers in boiling water and boil them for 6-7 hours. If the fibers are high alkaline, the fibers are boiled in boiling water, and the fibers are in warp and weft directions.
All dimensions are loose.
According to different standards, there are many classification methods of glass fibers, generally from the length and diameter, composition and performance of two angles to classify.