3M™ Class B Aerospace Sealant, Manganese Dioxide/Polysulfide, Paste, Dark Brown, Slight, 1 qt

3M™ aerospace sealant AC-380 Class B are fast cure, 1.1 specific gravity, solvent-free, low shrinkage and high temperature integral fuel tank sealants. This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. It offers as much as thirty percent weight savings, per unit volume, over traditional sealants with similar purpose. The cured sealants have outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. The sealants will resist limited contact to diphosphate ester based hydraulic fluid.
Features
• Helps reduce shrinkage and rework to allow for process improvements and cost reductions
• As much as 30% lighter than traditional sealants to reduce weight
• With excellent tooling properties, easy application and quick curing AC-380 can help to reduce cost
Technical Information
• AMS 3281
Specifications
• Series: AC-380 B-1/2
• Container Size: 1 qt
• Base Type: Manganese Dioxide/Polysulfide
• Form: Paste
• Color: Dark Brown
• Odor/Scent: Slight
• Composition: 30 to 45% Manganese Dioxide, 30 to 45% Hydrogenated Terphenyl, <10% Partially Hydrogenated Polyphenols, <5% Terphenyl, <5% Water, <5% Natural Amorphous Compounds, <3% Dipentamethylenethiuram Hexasulfide, <2% Nuc to Zeolites, <2% Sodium Hydroxide, <1% Dispersing Agent, <1% Ferbam, <=0.1% Lead, <0.005% Cadmium
• Dry Time: 5 hr
• Density: 1.58 g/mL
• Specific Gravity: 1.1
• Viscosity: 10000 to 14000 poise
• VOC Content: 2.6 g/L
• Application Method: Spatula, Extrusion, Injection Gun
• Applicable Materials: Aluminum, Stainless Steel, Steel, Titanium
• Shelf Life: 9 months
• Storage Temperature: <80 deg F
• Flash Point: >110 deg C
• Application Time: 1/2 hr
• Temperature Rating: -80 to 250 deg F