Developed by The Gund Company, PolyPro FR® is a UL Listed flame retardant Polypropylene extruded for electrical insulation applications in electrical and electronic power systems equipment
End User applications
- Solar Inverters and Combiner Boxes
- UPS / Data Centers
- AC Management and Climate controls
- Low and Medium Voltage Switchgear and Power Distribution equipment
- DC Power / Rectifiers / Telecom
- White goods and appliances
- Medical Applications
- Power Electronics and Power Supplies
- Consumer Electronics
- Battery Chargers and Battery Packs
Made in the USA
- Sold directly from The Gund Company and manufactured in the US, readily available in 7 locations in 4 countries.
- PolyPro FR® from The Gund Company is a UL certified product: E228440
- UL 94 V-0 rated in full thickness range of 0.010” – 0.125”
- Extremely low water absorption
- Suitable for outdoor use with respect to exposure to Ultraviolet Light, Water Exposure, and Immersion in accordance with UL 746C
- Excellent fabrication and formability characteristics
- Available in Black or White as a roll, sheet or fabricated part
- Offers temperature resistance to 110 °C per UL testing
- Provides a lower cost alternative for designs incorporating the use of materials such as Formex®, Nomex® 410, Valox, Mylar Polyester Film, Vulcanized Fibre, Voltoid, and Quin-T products
- Excellent Dielectric Breakdown strength
How can you process/convert PolyPro FR®?
- Die Cutting – Steel Rule Die, Rotary Dies
- Laser or Water Jet Cutting
- Heat Forming
- Thermoforming
- Machining – CNC Mills and Turrets
- Printing
- Welding
- Joinery Methods
- Lamination, Pressure Sensitive Adhesives (PSA), Aluminum and Copper foil
The Gund Company offers all the conversion processes mentioned above in 7 of our facilities across 4 countries
Common Applications for PolyPro FR®
- Phase-to-Phase Barriers
- Fuse Board Insulation
- Switch Insulation
- Terminal Insulation
- Fuse Clip Insulation
- Air Duct Baffles
- Formed Channels
- Ground Insulation
- Chassis / Enclosure Liner
- PCB Insulators / Liners
- Insulating Spacers
- Insulating Shields
- Bus Bar Insulation
- Capacitor Insulation
PolyPro FR® from The Gund Company is a UL equivalent to ITW Formex GK®. PolyPro FR® offers a significant cost advantage as well as numerous other advantages over common flexible materials in the industry.
| PolyPro FR | ITW Formex GK® | Vulicanized Fibre | Duroid D-100 FR | Mylar PET FILM | Nomex Aramid Paper | Valox | Lexan FR 700 Polycarbonate | |
|---|---|---|---|---|---|---|---|---|
| Flammability | UL 94 V-0 | UL 94 V-0 | UL 94 HB | UL 94 V-0 | UL 94 HB | UL 94 V-0 | UL 94 V-0 | UL 94 V-0 |
| Dielectric Strength | 2,000 VPM | 1626 VPM | 215 VPM | 200 VPM | 1,400 VPM | 700 VPM | 400 VPM | 1500 VPM |
| Tensile Strength | 5,200 psi | 4,400 psi | 14,000 psi | 12,000 psi | 25,600 psi | NA | 7,500 psi | 11,000 psi |
| Temperature Index | 110°C | 115°C | 110°C | 90°C | 130°C | 220°C | 140°C | 130°C |
| Water Absorption | 0.01% | 0.06% | 66% | 40% | 0.01% | 20% | .04% | .28% |
| Relative Cost | 100% | 129% | 106% | 123% | 127% | 687% | 276% | 238% |