3M™ Aerospace Sealant, Polysulfide, Liquid, Dark Brown, Slight, 3.5 oz

3M™ aerospace sealant AC-350 class A are fast cure, intermediate density two-component, manganese dioxide cure, brushable, polysulfide fuel tank and fuselage sealants. 3M™ AC350 class A sealants have outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. 3M™ AC-350 class A sealants maintain flexibility and bond strength on most metal substrates such as aluminum, titanium, steel, stainless steel and many coatings under extremes of temperature, weathering and stress. The mixed compound is a pourable liquid easily applied by brush or roller. It has excellent tooling properties.

Features
• Sealant resists aviation fuels and chemicals commonly used throughout the aviation industry
• Various work lives and cure rates help meet a variety of process demands
• Maintains bond strength on many metal, composite and coated substrates
• Low shrinkage results in less rework
• Class A version is mixed, it provides a smooth pourable liquid that spreads evenly with a brush or roller to cover large areas quickly

Technical Information
• AMS S8802 Type II and AMS 3276

Specifications
• Series: AC-350 A-1
• Container Size: 3.5 oz
• Base Type: Polysulfide
• Form: Liquid
• Color: Dark Brown
• Odor/Scent: Slight
• Composition: 30 to 50% Manganese Dioxide, 30 to 45% Hydrogenated Terphenyl, 0 to 10% Partially Hydrogenated Polyphenols, 0.5 to 5% Terphenyl, 0.5 to 5% Water, 0.5 to 5% Zeolites, 0 to 5% Natural Amorphous Compound, 0.1 to 2% Dipentamethylenethiuram Hexasulfur, <2% Sodium Hydroxide, 0.1 to 1% Ferbam, 0.1 to 0.6% Dispersing Agent, <0.1% Lead
• Curing Time: 8 hr
• Flash Point: >=200 deg F
• Specific Gravity: >=1.58
• Viscosity: 250 to 500 poise
• Density: 1.58 g/mL
• VOC Content: 0.9 to 1 g/L
• Applicable Materials: Aluminum, Stainless Steel, Steel, Titanium
• Temperature Rating: -65 to 250 deg F Service
• Application Life: 1 hr
• Tack-Free Time: 5 hr
• Hardness Rating: 48 to 53 Shore A
• Shelf Life: 9 months
• Non-Volatile Content: 88 %

Applications
• For sealing integral fuel tanks repairing integral fuel tanks sealing fuselages