Potting & Electronic Protection.
Potting compounds and protective lacquers protect electronics against moisture, vibration, heat, and media. Epoxy, polyurethane, or silicone: the right choice determines protection, heat dissipation, processing, and repairability.
Overview
Basics
When potting and encapsulating, a curing resin encloses the assembly and protects it from environmental influences. Epoxy resins offer high strength as well as chemical and temperature resistance, but are hard and difficult to repair. Polyurethanes are tough-elastic and impact-resistant, ideal for mechanically stressed potting compounds. Silicone potting compounds are permanently elastic, temperature- and UV-stable, low-stress, and partially repairable, making them the first choice for electronics subjected to temperature cycling. For thermal management, thermally conductive types are available. Thin conformal coatings protect printed circuit boards over their entire surface with low weight. The mixing ratio, pot life, exotherm, shrinkage, and the required electrical properties are decisive for selection; the technical data sheet is binding.
Product range
Products & Brands
Epoxy casting resins, PU resins, silicone potting compounds, electrical casting resins, and conformal coatings, along with hardeners and static mixers for processing: you will find the right material for potting, encapsulation, and coating directly in the shop. Technical data sheets and safety data sheets are available to support your decision-making.
Knowledge
Popular content
Guides and comparisons from the Knowledge Center: from selecting the right potting compound, through conformal coatings, to thermal management.
Overview
All Articles in This World
Automatically updated, all relevant technical articles at a glance.
Conformal Coatings: Protective Lacquers for PCBs Compared | SILITECH
Potting Electronics: Step-by-Step Guide
Electronic protection against salt, fog, and fluctuating humidity
Epoxy Resin Basics: Mixing, Processing, Common Mistakes
Exothermic Reaction in Epoxy Potting: Risks with Large Volumes
Protecting PCBs from condensation: why IP protection alone is not enough
Potting vs. Encapsulation: Differences and Applications in Electronics | SILITECH
Cracks in Potting: Causes and Material Selection
SILIRESIN Biothane
Thermal Interface Materials: Gap Fillers, Pads, and Pastes vs. Potting Compound
Thermally Conductive Potting Compounds: λ-Values Explained | SILITECH
Avoiding Potting Defects: Bubbles, Delamination, Shrinkage, Pot Life
Potting compound for high-voltage components
Potting compound for LED drivers: heat, moisture and electrical insulation
Potting compound for outdoor sensors
Potting compound for connectors and cable outlets
Potting compound for inductive components: coils, chokes and transformers
Potting compounds & electrical casting resins for electronics: epoxy, silicone, or PU?
Thermally conductive potting compound for batteries and BMS
Areas of application
For which industry?
Potting compounds, casting resins, and conformal coatings are used, among others, in these industries.
FAQ
Frequently asked questions
Epoxy, Silicone, or Polyurethane: Which to Choose?
Epoxy offers high strength and media resistance, polyurethane is suitable for tough-elastic, impact-resistant potting compounds, silicone for electronics subjected to temperature cycling and UV exposure with low mechanical stress and partial repairability. The final suitability is determined by the technical data sheet and a test on the actual component.
What does thermally conductive mean?
Such potting compounds contain fillers that dissipate heat from components, specified as thermal conductivity in W/mK. Higher values mean better heat dissipation, usually at the expense of viscosity and elasticity. The value for the specific product is given in the technical data sheet.
Conformal Coating or Full Encapsulation?
Coating for lightweight, repairable basic protection against moisture with minimal weight. Full encapsulation when maximum protection against media and vibration is required and the additional weight is acceptable.
Contact
Material question still open?
Describe your application, component, and load conditions to us. We will evaluate suitable resin systems, technical data sheets, and possible alternatives.