Flamemaster has been consistently producing quality sealants for the aerospace industry since 1942.

CS3100 Class 1, 2, & 3

CS3100: Electrical Potting and Sealing Compound

CS3100 from Flamemaster is an electrical potting compound intended for potting and sealing electrical connectors and components for protection from moisture, fuels, dirt, and other contaminants. It is resistant to high humidity and known aviation fuels.

At room temperature, this two-part polysulfide cures to a flexible, resilient rubber. Learn more below or get a quote today.

Meets Requirements: MIL-PRF-8516G Class 1, 2, & 3

Packaging: Available in 2½ - and 6-oz. cartridges, pint, quart and gallon kits. Also available in premixed and frozen cartridges. Other-size packaging available.

Technical Data

Cure Profile:Class 1Class 2Class 3
Application Life (hrs):1-31-31-3
Tack Free Time (hrs):N/AN/AN/A
Cure Time (hrs):244872

Shelf Life: 9 monthsConsistency: Self-levelingColor: Tan

*Please consult the technical data sheet for specificities of environmental conditions that yielded the above data. Standard cure rates are based on industry curing standards.


Why don’t we have pricing on our product page? Because pricing is not a one-size-fits-all proposition. There are multiple variables determining product price, such as:

  • Part name, type, class, or manufacturer
  • Size
  • Quantity
  • Specification
  • Shelf life requirement
  • Purchaser type: Distributor or end-user?

Every quote is custom, created just for you and your specific needs. Please fill out the form on our CONTACT US page and we’ll be in touch ASAP.

CS3100 Electrical Sealant

Bulk In Stock

Product Resources

Technical Data Sheets (TDS)

Safety Data Sheets (SDS)

NSL Product Guides