In Electronics, Potting is a process of filling a complete electronic assembly with a solid or gelatinous compound for high voltage assemblies by excluding gaseous phenomena such as corona discharge, for resistance to shock and vibration, and for the exclusion of water, moisture, or corrosive agents. Thermosetting plastics or silicone rubber gels are often used, though epoxy resins are also very common.

When potting a circuit board that uses surface-mount technology, low glass transition temperature potting compounds such as polyurethane or silicone may be used, because high glass transition temperature like epoxy potting compounds may break solder bonds through solder fatigue because by hardening at a higher temperature.

GOTECH offer  Silicone Potting compound as well as Polyurethane Potting compound. GOTECH’s dielectric potting and encapsulation materials are principally used to protect electronic components from moisture and harmful contaminants. These materials can help provide stress relief protection to circuits from thermal, vibration, and mechanical stress. GOTECH offers a range of materials including one- and two-part products and specialized grades that offer thermal conductivity, flame retardancy, and low volatiles.

We also supply Momentive’s Silicone Potting Compound. Momentive’s industrial gels and encapsulants offer higher performance, increased miniaturization and long-term dependability for potting, bonding and sealing applications designed to protect, isolate and embed delicate electronic circuitry. Momentive’s SilCool*, InvisiSil*, Silopren* and SilTRUST* gels and encapsulants, as well as our room temperature vulcanization (RTV) sealants, protect fragile components against mechanical and thermal shock. The products offer a range of benefits, including: fast room temperature cure, electrical stability, stress relief, thermal dissipation and high electro-conductivity in adhesives.

Momentive helps foster scientific advances in numerous manufacturing sectors, including the automotive, display, appliance, lighting, power, gaming and packaging industries. Another example is the solar industry, where Momentive’s SilTRUST E110 encapsulant can enable new cell and module technologies that are incompatible with more traditional encapsulation materials.