Product Description
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3M™ AC350B2 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 3.5-ounce container and can be mixed in a 100 base/10 catalyst ratio by weight to form a dark gray color mixture. It requires 2 hours for application and will be sufficiently cured after 7 to 8 hour. The product withstands a temperature range of -65 to 250 degrees F.
Features:
- Fast cure rate helps to meet various process demands
- Efficiently maintains flexibility and bond strength on various metal, composite and coated substrates
- Easy to apply using spatula, extrusion gun or injection dispenser
- Provides low shrinkage results in less rework
- Density of 1.58 grams per milliliter for part-A catalyst and 1.35 grams per milliliter for part-B base
- Viscosity of 9000 to 12,000 poise at 77 degrees F for part-B base
- Withstands a tensile strength of 250 psi
Benefits:
- Sealant offers an excellent resistance to aviation gasoline/jet fuel and chemical/petroleum products commonly used in aircraft industry
- Suitable for use on most metal substrates including aluminum, titanium, steel, stainless steel and glass
Applications:
- Sealing integral fuel tanks
- Repairing integral fuel tanks
- Sealing fuselages
Specifications:
- AMS-S-8802 and AMS 3276
- CMNP093 Type XIV or MMS332 Grade 2
