
Epoxy Potting Compound: A Guide for Electronics
Choose a potting compound by Tg, CTE and W/m·K, not by color. How epoxy, polyurethane and silicone differ, how to pour without voids, and what UL 94 proves.
Dielectric insulators, potting compounds and thermally conductive plastics for industrial power and LED.
3 articles


Choose a potting compound by Tg, CTE and W/m·K, not by color. How epoxy, polyurethane and silicone differ, how to pour without voids, and what UL 94 proves.

Thermally conductive plastic vs aluminum: one resistance decides the swap. Compare conductivity, weight, isolation and tooling, plus where aluminum still wins.

Choosing thermally conductive electrical insulators: sil-pad type pads vs mica, ceramic and grease stacks, judged by breakdown voltage, W/m·K, thickness and UL.
Tell our engineers your constraints — we'll recommend a ZIITEK grade and send a sample.