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Dapco 18-4F

Dapco 18-4F: Firewall Sealant

Dapco 18-4F from D Aircraft is a two-component, firewall sealant intended for use as a coating, sealant or filleting material in the construction, repair and maintenance of aircraft and is especially useful where fire resistance, exposure to phosphate ester fluids, and/or exposure to extreme temperatures -65°F (-54°C) to 400°F (204°C) are major considerations.

The sealant adheres well to a variety of substrates when primed with Dapco 1-100. Learn more below or request a quote today.

Meets requirements of specification:  BMS 5-63 TY 1 B4

Packaging: Available in pints, quarts and gallons.

Technical Data:  *
  • Cure Profile:
  • Application Life (hrs): 4
  • Tack Free Time (hrs): 24
  • Cure Time (hrs): <7
Shelf Life: 12 Months | Consistency: Paste | Color: Dark Green

*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. 

Technical Data Sheets (TDS)

Safety Data Sheet (SDS)

NSL Product Guides