Manufacturing & Industrial


CSL520 Silicone Potting and Encapsulating Sealant

CSL520 Silicone Potting and Encapsulating Sealant

A durable electrical and electronic encapsulant for a wide range of applications.


CSL520 is a two-part, room temperature vulcanizing (RTV) electronic grade silicone sealant/adhesive.

CSL520 silicone potting and encapsulating sealant is a pourable base which, with the addition of a catalyst becomes a firm, flexible sealant when cured at room temperature.

CSL520 is easily mixed and poured without preheating, cures in any thickness without heat and is easy to repair.

CSL520 can be used in corrosion-sensitive electronic equipment with no adverse effects.

CSL520 remains flexible from -60°C to 200°C (-76°F to 392°F).


  • Recognized under the Components Program of Underwriters Laboratories Inc.®
  • Neutral cure formulation will not corrode copper, brass or silver
  • Cures to any thickness without heat and in confinement
  • No shrinkage

CSL520 can be used as a durable, general purpose encapsulant in a wide range of electrical and electronic applications. Various combinations of base and catalyst allow a wide range of working times and cure rates that satisfy a wide range of potting and encapsulating needs.





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