This two-component polysulfide polymer sealant is designed for fuselage and fuel tank applications, offering excellent resistance to aviation fuels and chemicals. It maintains flexibility and bond strength on various metal substrates under extreme conditions. The low-viscosity formulation allows for easy mixing and application through multiple methods.
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WARNING: This product can expose you to chemicals including ETHYLBENZENE which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Overview
Naftoseal® MC-780 Class C is a two-component, manganese dioxide cured polysulfide polymer system with reduced density providing excellent fuel tank and fuselage seals, it is designed for interfay surface sealing and wet riveting of fuselage components and has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to the chemicals and petroleum products used in the aircraft industry, Naftoseal® MC-780 Class C maintains its flexibility and bond strength on most metal substrates like aluminum, stainless steel, steel, titanium, composite and many coatings under extremes of temperature, weathering and stress. Naftoseal® MC-780 Class C can be mixed by MCI-Mixer or by appropriate 2-component mixing and dosing systems. Naftoseal® MC-780 Class C combines low-viscosity, for ease of mixing, with a high thixotropy giving good application characteristics. It can be effectively applied by extrusion, by injection gun, or by using a roller coating technique. The low-viscosity means that it is easily squeezed from interfaying surfaces during the assembly process. It has a unique self-filleting characteristic. The curing time may be reduced considerably by increasing the temperature (up to 60 deg C maximum).
Features & Benefits
Excellent fuel tank and fuselage sealing capabilities
Low viscosity for easy mixing and application
High thixotropy for effective application properties
Outstanding resistance to aviation fuels and chemicals
Maintains flexibility and bond strength under extreme conditions
Short application time of 12 hours for efficient use
Specifications
Series: MC-780 C-12
Form: Liquid
Color: Beige
Odor/Scent: Polysulfide Solvent
Composition: 25 to 50% Polysulfide Polymer, 10 to 25% Polysulfide Polymer, 2.5 to 10% Xylene, 1 to 2.5% Ethylbenzene
Curing Time: =10 Days Time to Shore A 30• Viscosity: 250 pa-s
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Product information provided "as is", and Boeing may add, change, discontinue or remove product information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
