3M AC-350B1/4 Aerospace Sealant 70005202489 Dark Gray, 25 g | 3M Industrial

3M AC350B1/4 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. With greater than or equal to 200 degrees F flash point, the slight odored part-A catalyst has a specific gravity greater than or equal to 1.58 and VOC contents of 3 grams per liter. With greater than 230 degrees F flash point, the sulfurous odored part-B base has a specific gravity of 1.35 and VOC contents of 2.9 grams per liter. This sealant is supplied in a 25-gram container and can be mixed in a 100 base/12.5 catalyst ratio by weight to form a dark gray color mixture. It requires 15 minutes for application and will be sufficiently cured after 1 to 2 hours. The product withstands a temperature range of -65 to 250 degrees F.Features:Fast cure rate helps to meet various process demandsEfficiently maintains flexibility and bond strength on various metal, composite and coated substratesEasy to apply using spatula, extrusion gun or injection dispenserProvides 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 12,000 poise at 77 degrees F for part-B baseWithstands a tensile strength of 250 psiBenefits: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, stainless steel and glassApplications:Sealing integral fuel tanksRepairing integral fuel tanksSealing fuselagesSpecifications:AMS 3276