The high-performance Ultem™ films are based on the proven Ultem resin technology. The Ultem™ polyetherimide resin (PEI) is an amorphous high-performance polymer, distinguished by many excellent characteristics.
Properties
high resistance to temperature
low absorption of humidity
good dielectric resistance, in comparison to polyimide films
low dielectric constant
high flame retardancy, according to UL 94 VTM-0
good resistance against many chemicals, such as complete halogenated hydrocarbons, alcohol and aqueous solvents
heat-sealing capability, with itself and with many other materials
high metal adhesion with copper by the sputtering process and thermal-cast copper
You have questions about our products or would like to order a custom cutting? Our consultants are happy to help you and are looking forward to your request.