ITW Formex® flame retardant materials provide superior electrical insulation. The material is available in rolls and sheets and can be easily fabricated into a wide range of shapes. No other flame retardant, electrical insulating material can match the flexibility and performance of FormexTM for cost-effective fabricated parts. FormexTM has successfully replaced a variety of electrical papers, thermoplastic materials, and injected molded parts.

Features & Benefits
  • UL 94 V-0 Flame Class; RoHS Compliant
  • Score and Fold to Fabricate Economical 3-Dimensional Parts
  • Fold Repeatedly Without Cracking or Splitting
  • High Dielectric Breakdown Strength
  • Non-hygroscopic; Superior Chemical Resistance
  • Lower Overall Part Cost with Thinner Materials
  • Lightweight feature (specific gravity) 1.035
  • Volume justified special thicknesses and configurations available by request


  • Outstanding dielectric strength properties.
  • Patented materials are easily fabricated to provide low-cost solutions.
  • FormexTM GS grade available for static sensitive applications.
  • May be used as a substrate with metal lamination for EMI/RFI shielding.
  • FormexTM materials offer superior protection due to high dielectric strength, physical strength and flexibility.
  • Supplied in rolls or sheets that can be printed and will accept adhesives.
  • Formex’s unique material properties meet global standards for flame retardancy and provide superior chemical resistance.
Functional Parts
  • FormexTM materials provide new and unique options for the design and construction of low-cost internal mechanical components.
  • Fabricated internal parts, such as air flow baffles and wire harness organizers, are commonly used as cost-effective replacements for plastic injection molded or sheet metal components.


Formex™ GK
  • Comes in thicknesses of .005” .010” .017”
  • .030” .040” .062 and .094”
  • Superior dielectric strength
  • RTI temperature of 115°C
Formex™ GL
  • Comes in thicknesses of .010” .017” and .026”
  • Flame retardant
  • RTI temperature of 125°C
Formex™ GS
  • Comes in thicknesses of .010” .017” .030”
  • ESD Protection
  • Flame Retardant
  • RTI temperature of 115°C
Formex™ N3
  • Halogen Free
  • Flame Retardant
  • Multi-Layer Polycarbonate Sheet
  • RTI temp of 130°C
  • ITW Formex® is a cost-effective UL 94 V-0 flame retardant electrical insulator in:
  • Automotive
  • Computers, data centers and computer peripherals
  • Conventional and uninterruptible power supplies
  • Consumer products
  • TVs and appliances
  • Electrical and power distribution systems
  • EV/Batteries
  • Lighting X Medical equipment
  • Telecommunications equipment
Processing Methods
  • Die Cutting: Including steel rule, engraved, rotary and male/female dies.
  • Laser or Water Jet Cutting: Advancements in technology provide rapid prototyping as well as high-speed
  • production.
  • Heat Forming: Low-cost tooling and a simple process combine to produce parts with permanently formed angles.
  • Thermoforming: Produces complex, rigid, three-dimensional shapes.
  • Machining: Materials are easily fabricated with conventional machining techniques.

  • X
Product Catalog