Electrical Insulation Gaskets
Electrical insulation gaskets help make finished products safer and more efficient
We convert flexible insulation materials to your custom requirements. These materials, such as 3M™ FRB, 3M™ ThermaVolt, Nomex, Formex and insulation paper, can provide electrical insulation for industrial, electrical, automotive and LED lighting applications.
Features and Benefits of Electrical Insulation Gaskets
3M™ Flame Barrier FRB-NT
3M™ Flame Barrier FRB-NT Series provides the high flammability resistance, arc resistance, and dielectric strength to help safely contain electrical hazards.
Key Features
- An inorganic-based, halogen free material (see regulatory section)
- UL 94-5VA rated – the most flame retardant UL 94 rating, even better than UL 94V-0
- Dimensionally stable – minimal to no shrinkage at elevated temperatures
- Available in thicknesses from 3 to 15 mil (0.08 to 0.38 mm)
- Densified for high dielectric strength and smooth surface
- Low volatile outgassing
Applications
The flame barrier FRB-NT series provides both electric shock and flame protection for electrical and electronic device applications such as:
- General purpose lighting luminaires (including LED type)
- Battery housing barrier (including electric and hybrid vehicles)
- Appliance enclosure (e.g., timers, actuators, switches)
Formulations
- FRB-NT076
- FRB-NT102
- FRB-NT127
- FRB-NT178
- FRB-NT254
- FRB-NT381
3M™ Flame Barrier FRB-BK
3M™ Flame Barrier FRB-BK Series is a low reflectance coated version of 3M™ Flame Barrier FRB-NT. The black coating provides less light reflectance, while the base 3M™ FRB-NT substrate material from 3M™ provides high flammability resistance, arc resistance, and dielectric strength to safely contain electrical hazards.
Key Features
- An inorganic-based, halogen-free material (see regulatory section)
- Coated to provide a low, 6% reflectance surface
- UL 94 5VA rated – the most flame-retardant UL 94 rating, even better than UL 94 V-0
- Available in thicknesses of 5.8 and 8.8 mil (0.145 and 0.225 mm)
- Dimensionally stable – minimal to no shrinkage at elevated temperatures
- Low volatile outgassing
Applications
The flame barrier FRB-BK series combines a low light reflectance surface to minimize light pollution with both electric shock and flame protection for lighting luminaires (particularly LED type).
Formulations
- FRB-BK145
- FRB-BK225
3M™ ThermaVolt Insulation Paper
3M™ ThermaVolt Insulating Paper meets the high performance requirements for high-temperature, dry-type transformers as major ground insulation in electrical systems rated through Class 220(R).
Key Features
- High thermal conductivity
- Long-term voltage endurance
- Low moisture absorption
- RoHS & REACH Compliant
- UL 94 V0 Rating
Benefits
- Potentially longer transformer life and greater overload capability
- Reduced conductor size and reduced or eliminated air gaps result in lower cost for same power rating
- Longer insulation life during partial discharge
- Coil assembly with reduced humidity control concerns
- Reduced human and environmental impact
- Excellent flammability performance
Applications
- Ground insulation
- Core and outer wrap
- Interwinding (or high-low) insulation
- Turn insulation
- Layer insulation
DuPont Nomex® 410
DuPont Nomex® 410, the original form of Nomex paper, has earned a global reputation for its ideal balance of properties and proven performance in a wide range of applications.
Key Features
What gives Nomex® 410 and the rest of the Nomex® 400 Series its superior characteristics is the ideal balance of five key properties:
- Exceptional thermal stability
- Outstanding mechanical toughness
- Broad chemical compatibility
- Excellent flame resistance
Benefits
- Temperatures up to 200°C have little or no effect on the electrical and mechanical properties.
- Strong and resilient with good resistance to tearing and abrasion.
- Withstands short-term electrical stresses of 18 kV/mm (457 mil) to 40 kV/mm (1,015 mil)
- Unaffected by most solvents and is unusually resistant to attacks by acids and alkalis.
Formulations
- Nomex® 410
Formex Polypropylene
Formex is composed of flame-retardant polypropylene that prevents electrically charged components from arcing. It can be converted into custom shapes and sizes to meet your specifications. Formex helps protect users, equipment and maintenance personnel.
Key Features
- UL 94V-0 Flame Class Rating meets global standards for safety
- Non-hygroscopic (ultra-low <0.06% moisture absorption)
Benefits
- Excellent dielectric strength shields against electrical surges
- Chemical resistance maintains mechanical and electrical properties
- Superior scoring, folding and bending capabilities — parts do not split or crack
- Competitive pricing
Formulations
- Formex GL
- Formex GS
- Formex GK
- Formex N3
Applications
Flame Barrier
EMI Shielding
Cloud Data Centers
Industrial Controls
Electrical Power Distribution
Medical & Consumer Electronics
Major Appliances
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