TRANSEAL® TG65 Transformer Gaskets

TRANSEAL® PREMIUM NITRILE FOR TRANSFORMER GASKETS

TG65 Transformer Grade Nitrile Rubber – Engineered for Superior Sealing Performance

Munaco Sealing Solutions proudly offers TRANSEAL® TG65 Transformer Grade Nitrile Rubber, a premium material specifically developed to meet the demanding sealing requirements of power and distribution transformers. Designed with deep expertise in sealing science, TG65 delivers exceptional performance where reliability and longevity are critical.

Formulated for excellent resistance to transformer oils and elevated temperatures, TG65 maintains its integrity under continuous exposure to harsh operating conditions. Its optimized 65-durometer hardness provides the ideal balance of flexibility and compression set resistance, ensuring long-term sealability and minimizing the risk of leaks.

TG65 is engineered to perform in both new installations and retrofit applications, offering consistent sealing performance across a wide range of environments. Its durability helps reduce maintenance intervals, extend equipment life, and improve overall system reliability.

At Munaco, we combine material expertise with precision manufacturing to deliver transformer gasket solutions trusted around the world. With global supply capabilities and a commitment to quality, TG65 Transformer Grade Nitrile Rubber stands as a reliable choice for critical sealing applications in the power industry.

Munaco Sealing Solutions — powering performance through advanced sealing technology.

TG65 TRANSEAL® is a registered trademarked product of the America Biltrite corporation.

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Click Here to Download TR-65 TRANSEAL® Nitrile Transformer Gasket Material Data Sheet

Click Here to Download TRANSEAL® TR65 Nitrile Transformer Gasket Material Brochure

BENEFITS

TRANSEAL® gaskets outperform cork in joints with recesses or grooves because Premium Nitrile conforms better to surface imperfections.

Premium Nitrile is non-porous, eliminating the need for additional sealants or coatings.

TRANSEAL® gaskets are easy to remove and replace across temperature extremes and maintain integrity in both hot and cold conditions.

They remain resilient under expansion, contraction, and vibration, ensuring a lasting seal.

Exceptional compression set performance. 20% maximum compared to 45–75% for standard nitrile and cork materials.

Strong resistance to applied loads, system blowouts, and vacuum conditions.

Longer shelf life: Premium Nitrile lasts up to 5 years under ambient conditions, unlike cork nitrile’s 2-year limit.

Excellent resistance to silicone-based oils, among the most aggressive fluids in use today.

APPROVALS

Conforms to Hydro Quebec transformer gasket specification SN-14.1 (product was tested by Hydro Quebec and approved for use).

Approved and used by Tennessee Valley Authority and found to be superior when compared to other products.

Engineered specifically for electrical transformers, meets or exceeds G.E. and ABB M4094E spec

TRANSEAL® TG65 Transformer Gaskets

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BENEFITS

APPROVALS

Seal & Gasket Design

Emergency Support

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