Parylene F PRODUCT PARAMETERS of our PARYLENE COATING Parylene F, the newest commercially available variant of Parylene Material, replaces the alpha hydrogen atom of the N dimer with fluorine. This variant of Parylene Powder is useful in high temperature applications (short term up to 450°C) and those in which long-term UV stability is required. Parylene F also has the lowest coefficient of friction and dielectric constant, and the highest penetrating ability of the four variants. Item Parylene F Cas No. 1785-64-4 Formula C16H8F8 Weight 352.2219 Appearance White powder MP/BP 321 ºCï¼?BPï¼? Purity 99% Min Purpose Optoelectronic Materials Storage Room temperature