Parylene

What is the poly-para-xylylene (parylene) films ?

Poly-para-xylylene (parylene) have been used in the conformal coating industry to protect electrical devices and mechanical parts from outer stresses, such as chemical reactions or physical stress. Compared to conventional polymer films, parylene films can be polymerized on a surface directly from the gas phase under the vacuum condition. The resulting pinhole-free parylene films have a number of advantages, including high chemical and electrical resistance, high transparency, and low gas permeability.