SEALANT: KIT 25,MC 650 B-1,24CS, NAFTOSEAL,AIMS 04-05-001

Naftoseal® MC-650 Class B is a two-component, manganese-dioxide cured polysulfide polymer system providing excellent 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. Part 50600245 has a minimum application time of 1 hour.
Naftoseal® MC-650 Class B 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-650 Class B Techkits can be mixed by MCI-Mixer or by appropriate 2- component mixing and dosing systems. The mixed compound is a thixotropic paste easily applied by extrusion, injection gun or spatula. It has excellent tooling properties.
For a good surface finish Naftosmooth can be used after application. The curing time may be reduced considerably by increasing the temperature (up to 60 °C / 140 °F max).

SPECIFICATIONS

• Colour: Brown
• Specific gravity: 1,65 g/ccm max
• Ultimate shore A Hardness: 60 max
• Service temperature: -55 °C (-67 °F)/ +130 °C (+266 °F)
• Tensile Strength:  2,0 N/mm²
• Elongation Ca. 270 %
• Peel Strength on Aluminum, Epoxy Primer, Top Coat and other Substrates:  150 N/25mm