Polyonics polyimide tapes are dimensionally stable at high temperatures so they remaining intact during the numerous temperature cycles batteries experience. The tapes also insulate the batteries from external high temperature heat sources within the device. In addition, the halogen free (including bromine and chlorine free), flame retardant tapes prevent the propagation of fire.

Polyonics tapes include both single coated tapes for masking and double coated tapes for bonding and are REACH and RoHS compliant.