Electrical insulation

Electrical insulation eliminates electrostatic or electromagnetic fields between two components.

It can also provide a thermal insulation function.

Gravic offers lamination, adhesive application, forming (folding, grooving) and cutting of a wide range of insulation materials.

More elaborate forms can combine this insulation function with a conductivity function, by adding copper or aliminium, or printing with conductive ink.

UL94 insulation (fire-retardant) 

The US standard UL 94, established by the Underwriters Laboratories, concerns the fire resistance of plastic materials. It classifies plastics according to their resistance to combustion over time, in a variety of orientations and thicknesses.

  • UL94 V0: combustion stops within 10 seconds, for vertical supports; no dripping permitted
  • UL94 V1: combustion stops within 30 seconds, for vertical supports; no dripping permitted
  • UL94 V2: combustion stops within 30 seconds, for vertical supports; some dripping of burning particles is permitted.
  • UL94 HB: Slow combustion on a horizontal support; burn rate of < 76 mm/min for a thickness of < 3 millimeters

There are other classifications which apply to low-density foam materials (HF-1, HF-2, HBF) and thin layers (VTM-0, VTM-1, VTM-2).

SPECIFICATIONS

TYPES OF APPLICATION

  • Packaging
  • Cowling
  • Technical parts
  • Engines
  • Electrical devices
  • Shielding
  • Outdoor equipment: lighting systems, etc.
  • Portable batteries for electric vehicles
  • Medical, security, defense sectors
  • Faraday cages

TYPES OF MATERIAL

  • Polyester
  • Polypropylene
  • Polycarbonate
  • FR700
  • FR60
  • FR65
  • Normex
  • Formex
  • Statex
  • Kapton, polyimide

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