40-D Mica Powder

This mica powder is a coarser  powder with a small scale shape. It is a classic product of Huajing  for many years.

As a functional enhancement additive, mica is a key component of rubber and forms an impermeable barrier with a high diameter to thickness ratio layer structure superior to other minerals, reducing the permeability of air and liquids in rubber compounds. Generally speaking, the better the layered structure of mica, the lower the permeability, so it is especially suitable for tire lining, medical plugs, membranes and hoses.