Our Solutions
Electrical Insulation
PNA offers electrical insulation materials fabricated to the customers’ dimensions. Insulation materials are selected by their temperature class which ranges from class Y (90 degrees C) up to class H (180 degrees C).
Electrical insulation materials are utilized widely in all electrical and electronic equipment. This includes, electric motors, transformers, appliances, office equipment and wire insulation. Please contact PNA directly to discuss your unique requirements.
Applications
- Aerospace
- Communications
- Defense
- Avionics
- Automotive
- Medical
- Electronics
PNA Stocks Materials from the Following Suppliers:
LEXAN® Polycarbonate Film
LEXAN® polycarbonate films have UL94 V-0 or VTM-O ratings, are chemical resistant, with excellent dielectric strength, low moisture absorption and high dimensional stability. Printable and available in a selection of textures and gauges.
Kenpro 369 Self Amalgamating Tape
Kenpro 369 self-fusing silicone rubber tape, has been produced in order to resolve the need for a waterproof tape that will withstand operating temperature in excess of 200°C and enhances its electrical insulation levels. An added feature of this tape is its ability to self-amalgamate within 24 hours creating a total weatherproofing shield.
Kapton® polyimide film
Kapton’s® ability to maintain its excellent physical, electrical and mechanical properties over a wide temperature range has opened new design and application areas for plastic films.
Formex™GK™ Fire Retardant Insulating Material
FORMEX™ GK is a flame-retardant grade of polypropylene extruded into sheet and roll form. It offers a good low-price alternative for a variety of flame-retardant sheet materials.
Dielectric materials, cut
to your dimensions.
PNA converts electrical insulation materials fabricated to your exact dimensions. Grades are selected by thermal class — from Class Y (90 °C) through Class H and beyond (180 °C+) — and put to work across motors, transformers, appliances, and wire insulation. Polyimide, aramid, polyester, polycarbonate, and self-fusing silicone, die-cut into the barrier your design needs.
ISO 9001:2015 · ITAR Registered · UL 94 V-0 · Made in USA
Thermal class range
Class Y through N
Peak dielectric
strength (polyimide)
Flame-rated grades
available
Quote turnaround
no minimum order
Engineered
dielectric stack
Class Y–N · 90–200 °C
Up to 300 kV/mm
Kapton · Nomex · Mylar · Formex
±0.005″ std · ±0.002″ tight
24-hour quote · no minimum
Stand off voltage,
hold up to heat.
Electrical insulation materials are used across all electrical and electronic equipment — electric motors, transformers, appliances, office equipment, and wire insulation. The right grade is chosen for dielectric strength and thermal class, then converted to your dimensions.
Insulation is chosen on two axes at once — how much voltage it must stand off, and how hot it will run.
PNA stocks a broad range of dielectric films, papers, and tapes and converts them into slot liners, phase and layer insulation, barriers, washers, and fold-up 3D insulators — cut precisely, accurately, and repeatably.
Grades are specified by IEC 60085 thermal class, from Class Y (90 °C) through Class N (200 °C) and higher, so the insulation is matched to the hotspot temperature and dielectric requirement of your application.
01
A dielectric barrier
High breakdown strength blocks current between conductors at close spacing — the film stands off voltage where insulation clearance is tight.
02
Rated by thermal class
Materials are selected by IEC 60085 class, from Class Y (90 °C) to Class N (200 °C), matched to the winding hotspot and service temperature.
03
Flame retardance built in
UL 94 V-0 and VTM-0 grades meet enclosure flammability requirements without adding a separate barrier or coating.
04
Fabricated to your dimensions
Die-free Zünd conversion cuts slot liners, barriers, washers, and fold-up 3D insulators to exact print geometry — prototype through production.
The right class
for the hotspot.
Insulation is rated by the maximum temperature it can endure over its service life. We select and convert materials across the full IEC 60085 range — matched to the winding hotspot your design runs at.
IEC 60085Untreated cotton, silk, paper90 °CLegacy low-temperature insulation and general low-voltage service.
IEC 60085Impregnated cotton, some polyester105 °CGeneral appliance and small-motor windings.
IEC 60085Polyester films, epoxy resins120 °CMotors, small transformers, commercial equipment.
IEC 60085Mica, glass fiber, polyester film130 °CIndustrial motors and general-purpose windings.
IEC 60085Upgraded mica / glass, aramid155 °CTraction and industrial motors, higher-load service.
IEC 60085Silicone, aramid (Nomex), mica180 °CHigh-temperature motors and transformers.
IEC 60085Polyimide (Kapton), silicone200 °CAerospace and high-temperature electronics.
Thermal class temperatures follow IEC 60085 and represent the maximum hotspot temperature for a nominal service life. Actual grade selection depends on voltage, mechanical duty, and environment. Send your requirement — we’ll confirm the material and class against your application.
The right film
for the barrier.
We stock and convert insulation from trusted manufacturers across the polyimide, aramid, polyester, polycarbonate, and silicone families — the material your specification calls for is the material we cut.
Polyimide Film
Maintains excellent physical, electrical, and mechanical properties across an exceptionally wide temperature range — opening design space no other film reaches.
Aramid Paper
Calendered aramid paper with high dielectric strength and thermal endurance — the standard for Class H slot, phase, and layer insulation.
Polyester Film
Tough, low-cost polyester film with strong dielectric strength and dimensional stability for barrier, wrap, and layer insulation.
Flame-Retardant Polypropylene
Flame-retardant polypropylene sheet — a low-cost, formable barrier that die-cuts and folds into rigid 3D insulators.
Polycarbonate Film
UL 94 V-0 / VTM-0 polycarbonate film — chemical resistant, excellent dielectric strength, low moisture absorption, and printable.
Self-Amalgamating Tape
Self-fusing silicone rubber tape that amalgamates into a seamless weatherproof shield within 24 hours and withstands service above 200 °C.
Material comparison — at a glance
Values are representative and vary with grade, thickness, and test method. Dielectric strength, thermal class, and flammability are all specified per your application. Send your service conditions — we’ll confirm the material against voltage, temperature, and flame requirements.
Insulation built
to spec.
Published capability across dielectric films, papers, and tapes. Thermal class, dielectric strength, and flammability are verified against your voltage, temperature, and clearance requirements.
Unusual requirement?
We regularly deliver
custom insulators and
fold-up 3D barriers.
Send your print and service conditions. If we can convert it, we’ll quote it.
Where our
insulation ships.
Electrical insulation is used across all electrical and electronic equipment. PNA converts dielectric barriers for programs where isolation and thermal endurance are not optional — from traction motors to avionics.
01 / 06
Aerospace & Avionics
- LRU insulation barriers
- Harness & wire protection
- High-temp polyimide films
- Low-outgassing grades
02 / 06
Defense Electronics
- Enclosure isolation
- High-voltage standoff
- Ruggedized assemblies
- Compliant dielectric films
03 / 06
EV & Automotive
- Traction motor slot liners
- Busbar isolation
- Battery pack insulation
- On-board charger barriers
04 / 06
Motors & Transformers
- Slot & phase insulation
- Coil & layer wraps
- Class F / H aramid
- Wedges & top sticks
05 / 06
Medical Devices
- Dielectric barriers
- Isolation films
- Compliant materials
- Cleanroom-packaged parts
06 / 06
Electronics & Appliance
- PCB insulating barriers
- Insulating washers
- Wire & cable insulation
- Office & consumer equipment
Proficiencies
& performance.
Deep engineering capability, materials in stock, and a quality system built around defense and aerospace compliance from day one.
Field proven
Thousands of designs integrated into battle-harsh and commercially challenging environments — insulation that holds up where it counts.
Proven track record
Orders delivered on time and to specification, from prototype quantities through full-scale production runs.
Continuous improvement
Driven to maintain a zero-return rate. Every lot is inspection-closed before it leaves the floor.
Deep engineering
Expert knowledge of dielectric materials and thermal-class selection, collaborating from concept through completion.
More from the
PNA capability set.
Electrical insulation is one family on a single CAD-driven production floor. Explore the rest of what we convert.
01 / 06
Conductive elastomer shielding gaskets converted to print — silver, copper, and nickel-graphite fills per MIL-DTL-83528.
02 / 06
Electrically conductive elastomer O-rings for EMI shielding in threaded and flanged enclosures.
03 / 06
Gap pads, phase-change, and adhesive TIMs that dissipate heat and conform to uneven surfaces.
04 / 06
Conductive elastomer flange gaskets for avionics LRU sealing, radar modules, and enclosure joints.
05 / 06
High-performance environmental gaskets converted from silicone, EPDM, Viton, and neoprene grades.
06 / 06
Tier-one stocking relationships across the leading EMI, thermal, and sealing material manufacturers.
Need custom
insulation? Quotes in 24 hours.
Include the voltage or dielectric requirement, thermal class or temperature, material, quantity, and any flammability spec. We’ll respond within 24 business hours with feasibility, lead time, and price.
Die-cut to print · slot liners · fold-up 3D insulators · rapid turnaround