Shin-Etsu SES22251-40 Silicone Encapsulant

Description

Shin-Etsu SES22251-40 is a silicone encapsulant for electronics potting and protective fill applications where a compliant cured body is preferred over a rigid resin. It helps support components inside a housing, reduce direct movement, and protect the assembly cavity during normal handling and service.

Where this encapsulant is used

SES22251-40 fits electrical modules, sensor housings, small assemblies, and specialty manufacturing work where silicone potting is already qualified. The product should be ordered by exact grade because changes in a silicone encapsulation material can affect flow, cure, hardness, and inspection results. Use this row when the approved material list names the 40 grade specifically.

How this encapsulant is processed

Prepare the assembly before dispensing. Parts should be clean, dry, and held in a fixture that keeps components from moving while the fill settles and cures. Pour or dispense into the lowest point of the cavity, let air escape, and avoid overfilling around connectors or serviceable parts. Record the cure window used on the qualified build so production batches repeat the same process.

Product specifications

Use SES22251-40 when a qualified drawing, repair instruction, or production route calls for this exact Shin-Etsu grade. Browse related silicone potting compounds for adjacent silicones and accessories. For manufacturer background, visit Shin-Etsu Silicone.

Need Help?

Need help confirming potting material fit for your housing geometry? Call (800) 220-1966 or email [email protected].