Shin-Estu

A thermal interface material fills the microscopic air gaps between a heat-generating component — such as a power semiconductor, CPU or battery cell — and its heatsink or enclosure. Still air conducts heat at only around 0.03 W/m·K, so even a tiny air gap can dominate the total thermal resistance of an assembly. Replacing that air gap with a silicone TIM rated 0.8–9.5 W/m·K lowers junction temperature and improves long-term reliability.

Insulating sheets and soft pads are solid, pre-formed and easy to handle but typically run thicker. Oil compounds (thermal grease) wet into the finest surface irregularities at the lowest bond line thickness but require careful dispensing. Gap fillers — SDP cure-in-place or CLG pre-cured gel — are designed to bridge larger uneven gaps, commonly 1–5 mm, while resisting pumpout under vibration.

Start with the gap geometry — even or stepped — then calculate the thermal conductivity and bond line thickness needed for your power dissipation and allowable temperature rise. Add electrical insulation, reworkability and flame-rating requirements, and this typically narrows the choice to one or two product families. See the step-by-step selection guide above, or contact Pantronics India for engineering support.

W/m·K (watts per metre-kelvin) measures how efficiently the material itself conducts heat — higher numbers move more heat per millimetre of thickness. Conductivity alone, however, doesn’t show the achieved thermal resistance at your actual installed thickness; a thinner, lower-conductivity TIM can sometimes outperform a thicker, higher-conductivity one. Match conductivity to your real BLT and contact area, not just the headline number.

BLT is the final, compressed thickness of the TIM once the component is clamped against the heatsink. A thinner BLT generally reduces thermal resistance for grease and phase change formats, while thicker formats such as soft pads and gap fillers are deliberately chosen to bridge larger mechanical tolerances between components of different heights.

Most series in this catalogue carry a UL94 V-0 flame rating and controlled low-molecular-weight (LMW) siloxane content. RoHS and REACH compliance documentation is available on request — confirm the specific grade’s certificate and SDS with Pantronics India before finalising your bill of materials.

Yes. Pantronics India, as an authorised Shin-Etsu distributor, provides datasheets and grade-specific samples so you can qualify thermal resistance, BLT and dielectric performance on your own assembly ahead of mass production.

EV battery packs typically use SDP cure-in-place gap fillers or CLG pre-cured gels (1.5–9.5 W/m·K) to bridge cell-to-cooling-plate tolerances, or TC-CA soft pads where a pre-formed, repositionable format is preferred. The right choice depends on gap size, vibration profile and assembly process — see the Gap Fillers and Soft Pads product pages for full datasheets.

Standard grades are typically dispatched from our Noida head office or Bengaluru regional office, with delivery scheduled across Delhi NCR, Mumbai, Pune, Chennai, Hyderabad, Ahmedabad and other major manufacturing hubs. Contact us for lead times on your specific grade and volume.