Superior Electrical Insulation & Metal Bonding: Momentive TSE-397 in Electronics Encapsulation

In modern electronics manufacturing and precision instrumentation, the reliability of components is paramount. Manufacturers face the challenge of ensuring both electrical insulation safety and robust bonding between dissimilar materials (such as copper, aluminum, and plastics). Furthermore, to improve production efficiency, single-component solutions that are primerless and low-odor are the preferred choice.

We recommend Momentive TSE-397, a one-component, room-temperature vulcanizing (RTV) silicone sealant. According to its Technical Data Sheet (TDS), this product is specifically designed to meet rigorous industrial demands.

• Primerless Adhesion

  TSE-397 offers excellent adhesion properties, bonding directly to various metals (including copper, steel, aluminum) and plastics without the need for a primer. This simplifies the process flow and reduces material costs.

• Excellent Electrical Insulation

  With a high dielectric strength of 22 kV/mm and an extremely low dissipation factor (0.005 @ 60Hz), it provides excellent insulation protection for electronic components, preventing short circuits and leakage.

• Fast Cure & Low Odor

  The product cures rapidly upon exposure to atmospheric moisture (Tack-Free Time: 10 minutes) and releases alcohol vapor during curing, resulting in low odor and an improved working environment.

• Broad Substrate Compatibility

  In addition to metals, it bonds well to glass, ceramics, and various engineering plastics (such as Nylon, PC, PBT), making it an ideal choice for bonding dissimilar materials.

• Insulating Adhesive Seal and Fixing

  Used for potting and fixing transformers, sensors, or circuit boards.

• LED Lighting Encapsulation

  Utilizing its good light transmission and thermal conductivity (0.18 W/m·K) for sealing protection.

With its primerless application, high insulation, and fast curing properties, Momentive TSE-397 has become a reliable partner for the electronics and electrical industries in enhancing product reliability and production efficiency.