DAPCO 18-4F is a two-component, solvent-free, thixotropic silicone paste. DAPCO 18-4F is most commonly used as a coating, sealant, or filleting material in the construction, repair and maintenance of all types of aircraft. The product can be applied using a variety of methods 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.
Approvals/References/Specs
Boeing Specification: BMS 5-63 Rev. N Form B, Class B-4, Type 1
This was my first time using it, and it worked great! I had plenty of work time, and just 24 hours later it was fully cured and ready to go. Excellent product with fast service. Pilots HQ is now my go-to source for epoxy—it’s the best because it’s strong and reliable.
