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DyFilm®

DyFilm® and DyFilm® HB HBB/HCC/HTK

DyFilm® is a polyester film obtained by the condensation between ethylene-glycol and terephthalic acid (PET). Thanks to its excellent physical, chemical and dielectric properties, Dy­Film® is particularly suitable for applications in the field of electrical insulation in machines up to class B (130°C). These films are used for in motors, transformers, capacitors and cables, and the manufacturing of tapes and laminates. It is available as hazy (medium transparency) or milky white film, featuring high slipperiness and tear strength.

DyFilm® HTK is a multi-layer PET-based laminate designed to achieve substantial final thicknesses, produced by laminating multiple layers of high electrical grade PET film. It has been specifically engineered for the production of barrier cylinders between the LV and HV windings of transformers.

DyFilm® HB-HBB is a polyester film of electric grade chemically treated on one side (HB) or two sides (HBB) with a special process giving the material a higher surface tension (over 58 dynes).

DyFilm® HCC is a polyester film of electric grade corona treated on two sides (HCC). These processes guarantee a perfect adhesion of resins and varnishes used in the industry of electric insulation.

Coveme insulating materials are UL Underwriters Laboratories certified and recognized by all major certification bodies worldwide.
Moreover the IATF certifies Coveme as qualified supplier specifically for the automotive industry.

IATF certified company
UL
DuPont Nomex distributor
DuPont Nomex qualified laminator
PRODUCT NAME STRUCTURE THERMAL CLASS TREATMENT/COLOUR THICKNESS IN MICRON
DyFilm® Pet film , electrical grade B: 130°C Medium transparency film 12, 23, 36, 50, 75, 100
DyFilm® Pet film , electrical grade B:130°C Milky white film 125, 190, 250, 300, 350
DyFilm® HTK Two or three layers laminate high thickness B:130°C Milky white laminate 390-1070
DyFilm® HB Pet film, electric grade B:130°C One side pre-treated Pet film  12,23,36,50,75,100 transparent 125,190,250,300,350 milky white
DyFilm® HBB Pet film, electric grade Pet film, electric grade Two sides pre-treated Pet film 12,23,36,50,75,100 transparent 125,190,250,300,350 milky white
DyFilm® HCC Pet film, electric grade Pet film, electric grade Two sides corona treated Pet film 12,23,36,50,75,100 transparent 125,190,250,300,350 milky white
DyFilm
  • DyFilm®
DyFilm HBB
  • DyFilm® HB HBB
DyFilm HCC
  • DyFilm® HCC
DyFilm HTK(PPP)
  • DyFilm® HTK(PP or PPP)

Notes and certifications

Available Widths 4-2190mm
Thermal Classes B
Available Thickness 12-1070μm
DyFilm® is Coveme's registered trademark.

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