MC-780 Class B is a low-density, two-component polysulfide-based sealant designed for aircraft fuselages and fuel tanks.
It offers excellent resistance to aviation fuels, chemicals, and petroleum products, maintaining flexibility and adhesion on metals like aluminum, titanium, and steel.
Easy to apply by extrusion or spatula, it comes in multiple curing versions (B-1/2, B-1, B-2, B-4) with varying working and curing times.
Compliant with Airbus AIMS 04-05-001 and 04-05-012, it ensures high mechanical and chemical performance.
Available in Techkit and Unit formats, with a 6-month shelf life.