LIGHTWEIGHT FUEL TANK & FUSELAGE SEALANT
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. The C-4 denotes that this product has a 4 hour application time.
| Category | Sealants | Brand | Chemetall |
| Part No. | NAFTOSEAL MC 780 C4 | OEM Part No. | Not Avaliable |
| Alt Part No. | Not Avaliable | Country of Origin | Not Available |
| Pro Category | Not Available | Is Return | Yes |
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.
Additionally, it was developed for a service temperature between -55 °C (-67 °F) to +130 °C (+ 266 °F) and withstand a shortterm temperature of +182 °C (+360 °F).
Naftoseal MC-780 Class C maintains its flexibility and bond strength on most metal substrates like aluminium, stainless steel, steel, titanium, composite and many coatings under extremes of temperature, weathering and stress.
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 and it has a unique self-filleting characteristic.
The curing time may be reduced considerably by increasing the temperature (up to 60°C or 140°F max).
NAFTOSEAL MC 780 C4
