SEALANT: KIT 100,MC 780 B-1/2,4CS, NAFTOSEAL,AIMS 04-05-014

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. 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 short-term temperature of +182 °C(+360 °F). Part number 50572669 has a minimum application time of 30 Minutes. 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. It has excellent tooling properties. NAFTOSEAL®MC-780 Class B can be mixed by MCI-Mixer (Techkits as well as Semkits) or by appropriate 2-component mixing and dosing systems. The curing time may be reduced considerably by increasing the temperature (up to 60 °C or 140 °F max). Typical Physical and Application Properties Base Hardener Colour Grey Brown Viscosity at 23 °C, Brookfield RV, Spindel 7 1.000 (+-) 400 Pa.s (B-1) 1.400 (+-) 400 Pa.s (B-1/4, B-1/2, B-2, B-4) (2 rpm) 400 Pa.s max. (10 rpm) Mixing ratio by weight: 100 10 (B-1/2, B-1, B-2, B-4) 14 (B-1/4) Mixing ratio by volume 100 6,2 Non-volatile content (>=) 94% (B-1) (>=) 97% (B-1/4, B-1/2, B-2, B-4)