As of April 4, 2020, we have fresh material and are shipping domestically and internationally.


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

CS3202 Class B

CS3202: Optical Sealant

CS3202 from Flamemaster is an adhesive sealing compound suitable for use by injection in bonding metal to glass in optical instruments or fire control instruments. The cured sealant is resistant to aircraft fuels, lubricants, oils, water and/or weathering, and remains flexible at low temperatures.

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

Meets requirements of specification:  AA59293 formerly Mil-S-11031

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

Technical Data: Class B*
  • Cure Profile:
  • Application Life (hrs): 3
  • Tack Free Time (hrs): 16
  • Cure Time (hrs): 48
Shelf Life: 12 Months | Consistency: Paste | Color: Black

*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.
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Technical Data Sheets (TDS)

Safety Data Sheet (SDS)

NSL Product Guides

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