3M AC-370B1/2 Aerospace Sealant 70005203131 Dark Gray, 3.5 oz cartridge | 3M Industrial

3M AC370B1/2 class B non-sag aerospace sealant comes in two parts which includes part-A catalyst and part-B base. The liquid part-A catalyst is brown in color, while the paste part-B base is off-white in color. This slight odored part-A catalyst has a specific gravity of 1.58 and VOC contents of 1.5 grams per liter. This sulfurous odored part-B base has a specific gravity of 1.23 and VOC contents of 2.5 grams per liter. The sealant is supplied in a 3.5-ounce cartridge and can be mixed in a 100 base/12.5 catalyst ratio by weight to form a dark gray color mixed compound. It requires 1/2 hour for application and will be sufficiently cured after 6 to 7 hour. The product withstands a service temperature range of -65 to 250 degrees F.Features:Efficiently maintains flexibility and bond strength on various metal and coated substratesEasy to apply using spatula, extrusion gun or injection dispenserUses low-density formula, which efficiently helps to minimizes final aircraft weightProvides low shrinkage results in less reworkQuick cure rate helps to achieve increased throughputDensity of 1.58 grams per liter for part-A catalyst and 1.23 grams per liter for part-B baseViscosity of 9000 to 16,000 poise at 77 degrees F for part-B baseWithstands a tensile strength of 250 psiFlash point greater than or equal to 200 degrees FBenefits:Sealant offers an excellent resistance to aviation gasoline/jet fuel and chemical/petroleum products commonly used in aircraft industrySuitable for use on most metal substrates including aluminum, titanium, steel and stainless steelApplications:Sealing integral fuel tanksRepairing integral fuel tanksSealing fuselagesSpecifications:AMS 3281 Type I, BAMS-552-002 PR 1