Resins & potting compounds.
Potting compounds protect electronics from moisture, vibration, and heat; casting resins and silicones form precise shapes and components. Epoxy, polyurethane, or silicone: the right choice determines protection, processing, and repairability.
Overview
Basics
In potting and encapsulation, a curing resin completely encases components, protecting them 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 applications. Silicone potting compounds are permanently elastic, temperature and UV stable, low-stress, and sometimes repairable, making them the first choice for electronics subjected to temperature fluctuations. Thermally conductive types are available for thermal management. In mold making, addition-curing silicones allow for low-shrinkage, highly detailed molds; release agents ensure clean demolding. The selection process considers the mixing ratio, pot life, exothermicity, shrinkage, and the required electrical properties; the technical data sheet of the respective system is the determining factor.
Product range
Products & Brands
Epoxy casting resins, PU resins, silicone potting compounds and electrical casting resins, plus hardeners, static mixers and release agents for processing: you can find the right materials for potting, encapsulation and mold making directly in the shop. Technical data sheets and safety data sheets are available to help you make your decision.
Knowledge
Popular content
Guides and comparisons from the knowledge center: from choosing the right potting compound to mold making with silicone.
Potting Compounds & Casting Resins: Epoxy, Silicone, or PU?
Conformal Coatings: Protective Lacquers for PCBs
Silicone for mold making: The complete guide
Potting vs. Encapsulation: Differences & Applications
All articles about potting & electronics protection
All articles on mold making & molding
Molding & Casting: Molding casting resins
Overview
All Articles in This World
Automatically updated, all relevant technical articles at a glance.
Addition-curing silicone does not harden: identifying inhibitors
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
RTV-2 Silicones in Architectural Model Making | SILITECH
Cracks in Potting: Causes and Material Selection
SILIRESIN Biothane
Silicone for Mold Making: The Complete Guide. Material Selection, Processing, and Error Avoidance
Silicone mold for concrete: tear resistance, Shore hardness, and release agents
Thermal Interface Materials: Gap Fillers, Pads, and Pastes vs. Potting Compound
Thermally Conductive Potting Compounds: λ-Values Explained | SILITECH
Release Agents for Mold Making: Comparison of Wax, PVA, Silicone, and PTFE
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, electrocasting resins and molding silicones are used in these industries, among others.
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.
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.