Elektrisola developed a product based on a modified polyurethane with a life time acc. to IEC 60172 of 20.000 h at 180 °C, short designation P180. It is produced with multiple passes of individual covering of insulation and is in-line tested for high-voltage-continuity to assure the perfect insulation without any insulation defects.
FIW is defined with many grades, specifying different insulation thicknesses. FIW 3 is the smallest defined build, while FIW 9 is the biggest.