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Formex™: Fire retardant insulating material


FORMEX GK is a flame retardant grade of polypropylene extruded into sheet and roll form.

Formex can be found in a variety of applications:
  • Transformer insulation
  • Instrumentation housing
  • Automotive parts
  • Lighting and switches
  • Barrier material

Formex can be supplied as standard roll, slit tape, sheet or die-cut parts. Formex GK is available in white or black.

  • Low cost, durable electrical insulation material
  • High dielectric strength
  • Low moisture absorption
  • UL 94 V-0 flammability class rating, ( GK-10 is VTM-0 )
  • Complies with CSA, IEC, VDE, TUV, BSR or MITI standards
  • Suitable for die cutting
  • Exceptional scoring and bending characteristics


Formex offers a good low-price alternative for a variety of flame retardant sheet materials including polycarbonate, polyester, PVC and aramid papers.

Grade Thickness Thickness width master roll length sheet size yield

GK-10 0.010 0.25 610 609.6 n/a 3.64
GK-17 0.017 0.43 610 304.8 n/a 2.05
GK-30 0.030 0.76 610 182.9 n/a 1.23
GK-40 0.040 1.02 n/a n/a 610 x 1220 0.92
GK-62 0.062 1.57 n/a n/a 611 x 1220 0.60

Formex GK can be laminated with an adhesive backing and die-cut into components which may be mounted on a release liner.


Email: info.uk (at) lohmann-tapes.com

Please use the Contact Form

Fax: +44 01908 300969


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