AIRCRAFT SEALNT
Naftoseal MC-780 Class B is a two-component, manganese-dioxide cured polysulfide polymer system with low density providing excellent fuel tank and fuselage seals. The B-2 denotes that this product has a 2 hour application time.
| Category | Sealants | Brand | Chemetall |
| Part No. | NAFTOSEAL MC-780 B2 | OEM Part No. | Not Avaliable |
| Alt Part No. | Not Avaliable | Country of Origin | Not Available |
| Pro Category | Not Available | Is Return | Yes |
It 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 B 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. The mixed compound is a thixotropic paste easily applied by extrusion, injection gun or spatula and has excellent tooling properties.
The curing time may be reduced considerably by increasing the temperature (up to 60 °C or 140 °F max).
Surface Preparation:
NAFTOSEAL MC-780 B2
