3M Aerospace Sealant 051141-58055 Dark Gray, 3.5 oz | 3M Industrial

3M AC350B1/4 Series class B non-sag aerospace sealant is ideal for use in fuel tank and fuselage applications. This intermediate density polysulfide sealant comes in two parts A and B. The liquid part-A catalyst is brown in color and has a flash point greater than or equal to 200 degrees F, while the paste part-B base is off-white in color and has a flash point greater than 230 degrees F. The slight odored part-A catalyst has a specific gravity of 1.58 and VOC contents of 3 grams per liter. The sulphurous odored part-B base has a specific gravity of 1.35 and VOC contents of 2.9 grams per liter. This solvent-free manganese dioxide cured sealant is supplied in a 3.5-ounce container and can be mixed in a 100 base/12.5 catalyst ratio by weight to form a dark gray color thixotropic paste. It requires 15 minutes for application and will be sufficiently cured after 1 to 2 hours. This sealant withstands temperature range of -65 to 250 degrees F.Features:Sealant offers excellent resistance to aviation gasoline/jet fuel and chemical products commonly used in the aircraft industryFast cure rate helps to meet various process demandsEfficiently maintains flexibility and bond strength on various metal, composite and coated substratesProvides low shrinkage results in less reworkDensity of 1.58 grams per milliliter for part-A catalyst and 1.35 grams per milliliter for part-B baseViscosity of 9000 to 12000 poise at 77 degrees F for part-B baseTensile strength of 250 psiBenefits:Suitable for use on most metal substrates including aluminum, titanium, steel, stainless steel and glassApplication of sealant is easy using extrusion, injection gun and spatulaApplications:Sealing integral fuel tanks and fuselagesRepairing integral fuel tanksSpecifications:AMS 3276