Transformer-Grade Nitrile | Gaskets for Transformers

Transformer-grade nitrile for gaskets in transformers and electrical equipment. Dielectric oil resistance, low swell, and 70-75 Shore A. Get a quote in 24 hrs!

Looking for a reliable material for transformer gaskets and oil-submerged electrical equipment? Transformer-grade nitrile is the solution you need. This specially formulated elastomer offers superior resistance to dielectric oils, excellent mechanical properties, and low swell, making it essential for transformers, power switches, and substation equipment.

With a swell resistance of only 1.75% maximum in ASTM3 oil and a wide temperature range of -28°C to 120°C, transformer-grade nitrile is ideal for gaskets, seals, and components in electrical distribution equipment where compatibility with dielectric oils is critical. Its 70-75 Shore A hardness and 2,350 psi tensile strength guarantee durability in demanding applications.

Available in rolls and sheets of transformer-grade nitrile with ASTM certification. Need transformer gaskets? Keep reading to discover all the advantages of our transformer-grade nitrile.

Transformer-Grade Nitrile - Everest Group

Transformer-Grade Nitrile Properties

Transformer-grade nitrile stands out for its exceptional properties in dielectric oil environments, ideal for transformer gaskets and electrical equipment:

  • Excellent dielectric oil and hydrocarbon resistance: Superior compatibility with transformer oils, ensuring durability in oil-submerged electrical equipment.
  • High mechanical strength (2,350 psi minimum): Withstands demanding loads in transformers, power switches, and substations.
  • Wide temperature range (-28°C to 120°C): Maintains its properties in varying conditions, ideal for electrical distribution equipment.
  • Low swell in ASTM3 oil (1.75% maximum): Minimal deformation in contact with dielectric oils, ensuring reliable sealing.
  • Excellent vibration absorption and sealing properties: Reduces noise and vibrations in transformers and power equipment.

These properties make transformer-grade nitrile an indispensable material in transformers, power switches, substation equipment, and any application requiring compatibility with dielectric oils.

PHYSICAL PROPERTIES
PARAMETERS METHOD SPECIFICATIONS
SHORE A HARDNESS, Points ASTM-D2240 70 - 75
TENSILE STRENGTH, psi ASTM-D412 2350 MINIMUM
ELONGATION, % ASTM-D412 325 MINIMUM
TEAR RESISTANCE, KN/m ASTM-D624 35 MINIMUM
TEMPERATURE RANGE, °C ASTM-D573 -20 TO 120
WEATHER RESISTANCE - GOOD
ACOUSTIC INSULATION - VERY GOOD
VIBRATION ABSORPTION - VERY GOOD
IMPACT ABSORPTION - VERY GOOD
COMPRESSION SET - GOOD
MECHANICAL & OPERATIONAL PROPERTIES
PARAMETERS METHOD SPECIFICATIONS
COMPRESSION SET (%), 22 hours @ 100°C ASTM-D395 35 MAXIMUM
CHANGE IN TENSILE, in ASTM3 oil, @ 100°C, 72 hours (%) ASTM-D471 -27 MAXIMUM
CHANGE IN ELONGATION, in ASTM3 oil, @ 100°C, 72 hours (%) ASTM-D471 -35 MAXIMUM
CHANGE IN VOLUME, in ASTM3 oil, @ 100°C, 72 hours (%) ASTM-D471 1.75 MAXIMUM
OPERATING TEMPERATURE, in ASTM3 oil (°C) ASTM-D471 -28 TO 120
CHEMICAL RESISTANCE
SUBSTANCES METHOD SPECIFICATIONS
GREASES, OILS & HYDROCARBONS ASTM-D471 EXCELLENT
CHEMICAL RESISTANCE ASTM-D471 GOOD

Transformer-Grade Nitrile Applications

Transformer-grade nitrile is ideal for transformer gaskets, power switches, substation equipment, and any application requiring dielectric oil resistance. Its low swell (1.75% maximum) ensures reliable sealing and a long service life in oil-submerged electrical equipment.

Transformer-Grade Nitrile Applications | Uses in Electrical Equipment

Discover the sectors where transformer-grade nitrile is essential for gaskets and sealing in electrical equipment

Transformers

Transformer-grade nitrile is ideal for gaskets and seals in oil-submerged transformers. Its low swell (1.75% maximum) ensures reliable sealing and a long service life.

Power Switches

Transformer-grade nitrile is the preferred choice for components in power switches and oil distribution equipment. Its dielectric oil resistance ensures durability in demanding applications.

Substation Equipment

Transformer-grade nitrile is used in gaskets for electrical equipment in substations and power plants. Its high mechanical strength (2,350 psi) ensures reliable performance in demanding conditions.

More applications for transformer-grade nitrile

Transformer-grade nitrile is also used in electrical measurement equipment, transformer cooling systems, valves and connections in power equipment, and protection components in substations. Its dielectric oil resistance and low swell make it the preferred material for transformer gaskets and electrical equipment where reliability and durability are priorities.

Transformer-Grade Nitrile Benefits | Why Choose It?

Advantages that make transformer-grade nitrile the best choice for gaskets in transformers and electrical equipment

Excellent Dielectric Oil Resistance

Transformer-grade nitrile offers superior resistance to dielectric oils, greases, and hydrocarbons, ideal for transformer gaskets and oil-submerged electrical equipment.

Wide Temperature Range (-28°C to 120°C)

Operates efficiently from -28°C to 120°C in oil environments, maintaining its sealing properties in varying conditions.

High Mechanical Strength (2,350 psi)

With 2,350 psi tensile strength and excellent durability, it withstands demanding loads in transformers, power switches, and substations.

Low Swell (1.75% Maximum)

Only 1.75% maximum volume change in ASTM3 oil, ensuring reliable sealing and a long service life in electrical equipment.

Vibration Absorption & Damping

Excellent vibration absorption and damping properties, reducing noise and vibrations in transformers and power equipment.

Good Weather Resistance

Resistant to environmental degradation, ideal for substations and outdoor electrical equipment.

Reliability in Electrical Equipment

Transformer-grade nitrile from Everest Group combines dielectric oil resistance, low swell, and high mechanical strength to deliver exceptional performance in transformers, power switches, and substations. ASTM certified, it guarantees safety, durability, and reliability in the most demanding applications.

Transformer-Grade Nitrile Certifications & Standards

Materials certified under international standards for gaskets in transformers and electrical equipment

ASTM D2240

Shore A Hardness

Certifies transformer-grade nitrile hardness at 70-75 Shore A, ensuring the balance between flexibility and strength.

ASTM D412

Mechanical Properties

Certifies 2,350 psi tensile strength and 325% elongation, ensuring durability in transformers.

ASTM D471

Chemical Resistance

Certifies dielectric oil resistance and low swell (1.75% maximum) of transformer-grade nitrile.

ASTM D395

Compression Set

Certifies 35% maximum compression set, ensuring reliable sealing in electrical equipment.

Need a certified material for transformer gaskets? Our ASTM transformer-grade nitrile guarantees maximum reliability and durability in oil-submerged electrical equipment applications. Contact us for technical support.

Need Transformer-Grade Nitrile for Your Electrical Equipment?

At Everest Group, we have the solution you are looking for. From transformer-grade nitrile in rolls and sheets to custom transformer gaskets. Dielectric oil resistance, low swell, and high mechanical strength. ASTM certified. Get a quote in 24 hrs!

Frequently Asked Questions

Do you have questions about transformer-grade nitrile? At Everest Group, we have compiled the most common questions and their answers for you. Just select a question and you will see the answer immediately.

Transformer-grade nitrile is a specialized elastomer formulated to offer superior resistance to dielectric oils, low swell, and excellent mechanical properties. It is specifically designed for gaskets in transformers, power switches, and electrical equipment submerged in oil, ensuring reliable sealing and long service life.

Transformer-grade nitrile offers excellent resistance to dielectric oils, greases, and hydrocarbons per ASTM D471. Its low swell (only 1.75% maximum in ASTM3 oil) ensures the material maintains its shape and sealing properties even after prolonged exposure to transformer oils, making it the preferred choice for transformer gaskets and electrical equipment.

Transformer-grade nitrile operates in a temperature range of -28°C to 120°C in oil environments (per ASTM D471). This makes it ideal for transformers, power switches, and substation equipment operating under variable temperature conditions.

Transformer-grade nitrile is available in rolls and sheets in different thicknesses and sizes to suit each project's needs. We also offer custom cutting and custom transformer gasket fabrication. To learn about available options and receive a personalized quote, we invite you to contact us.

Yes. Everest Group's transformer-grade nitrile complies with ASTM D2240 (Shore A Hardness), ASTM D412 (Mechanical Properties), ASTM D471 (Chemical Resistance), and ASTM D395 (Compression Set). These certifications guarantee the quality, reliability, and safety of the material in oil-submerged electrical equipment applications.

Yes. Everest Group ships transformer-grade nitrile in rolls and sheets throughout the United States, Canada, Mexico, Central America, and Spain. Delivery time depends on location and product availability. Contact us for shipping times and costs to your location.

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