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

CS2415 Class B

CS2415: Aluminum Exterior Sealant

CS2415 from Flamemaster is a fuel resistant sealant intended for use on pressurized cabins. As an aluminum exterior sealant, it’s recommended for sealing external seams, depressions and gaps on aircraft to yield weather tightness and achieve aerodynamic smoothness. Learn more below or get a quote today.

Meets Requirements: MIL-S-38228 Ty1, DMS1819, and STM40-006 Class A

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

Cure Profile:B1/2B2
Application Life (hrs):1/22
Tack Free Time (hrs):<10<24
Cure Time (hrs):<48<72

Shelf Life: 9 monthsConsistency: PasteColor: 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.


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.

CS2415 Aluminum Exterior Fuel Tank & Fuselage Sealant

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Product Resources

Technical Data Sheets (TDS)

Safety Data Sheets (SDS)

NSL Product Guides