6643 Modified Polyester film/polyester non-woven flexible laminate is a three-layer 100% saturated flexible composite insulation paper apho icala ngalinye lefilimu yepolyester (M) idityaniswe ngomnye umaleko wepolyester non-woven fabric (D), ngoko ke ziqatywe nge-F-class yombane insulating resin. I-6643 i-DMD isetyenziswa njenge-slot insulation, i-interphase insulation kunye ne-liner insulation kwiklasi yombane ye-F, ilungele ngokukodwa inkqubo yokufaka i-slot yomatshini. I-6643 F-iklasi ye-DMD iphumelele uvavanyo lwe-SGS lokufumanisa into eyityhefu kunye neyingozi. Ikwabizwa ngokuba yi-DMD-100, i-DMD100 yephepha lokugquma.