Protective coating for electronics. Dow SYLGARD 182 Silicone Elastomer Clear is a two-component, heat-curing encapsulant used as a protective coating for electrical applications, including power supplies, transformers, sensors, amplifiers, and connectors. It provides flexibility, low stress, easy repairability, long pot life, and good dielectric properties.
Handling and mixing. SYLGARD 182 uses a 10:1 mix ratio by weight or volume, giving straightforward proportioning. Its long pot life allows generous working time before cure, which is useful when potting complex assemblies or working through several parts in a single batch.
Cured performance. Once cured, the clear elastomer delivers flexibility and low stress on delicate components, together with good dielectric properties that support its role as an insulating protective coating. Its clarity also allows visual inspection of the encapsulated components after cure.
Serviceability. The material is described as easy to repair, meaning cured encapsulant can be reworked to access underlying components when needed. Combined with its long pot life and heat-cure processing, this makes SYLGARD 182 practical for both production and maintenance of protected electronics.
Key properties: Flexibility, low stress, easy to repair, long pot life, good dielectric properties
Container size: 3.9 kg kit, 19.9 kg kit
Primary Industries
Electronics and PCB manufacturing
Power supply and transformer manufacturing
Sensor and connector manufacturing
Industrial electronics
Standards and Certifications
None specified by source
FAQs
What is SYLGARD 182 used for?
It is a two-part, heat-curing silicone encapsulant used as a protective coating for electrical assemblies, including power supplies, transformers, sensors, amplifiers, and connectors. It cures to a clear, flexible elastomer with good dielectric properties, protecting components while allowing visual inspection through the transparent material.
What mix ratio does it use?
SYLGARD 182 uses a 10:1 ratio, and Dow notes that this ratio can be measured by weight or volume, which simplifies proportioning. Accurate measurement of the base-to-curing agent ratio helps ensure consistent cure and mechanical properties, so careful metering is important for repeatable results across successive mixes and batches.
Does SYLGARD 182 have a long working time?
Yes. It is noted for long pot life, giving generous working time before the material begins to cure. That extended working window is helpful when potting complex assemblies or processing several parts in a single batch, reducing the risk of the material setting up before the work is complete.
Can encapsulated parts be repaired later?
Dow describes SYLGARD 182 as easy to repair, meaning the cured encapsulant can be reworked to access underlying components during servicing. This serviceability, combined with its low stress on delicate parts, makes it suitable for assemblies that may need maintenance or component replacement over their life.
How is it cured?
SYLGARD 182 is a heat-curing system, so the mixed material is cured by applying heat rather than at room temperature. Cure time depends on temperature and section thickness. Consult the product datasheet for the recommended cure schedule and confirm the settings suit your components and process equipment.
