Sealants

3M Aerospace Sealant AC-350

SKU: AC-350

Brand: 3M

Pricing on request

Specifications

Part Number	AC-350
Material	two-part polysulfide, MnO2-cured, solvent-free
Compliance	Class B qualified to AMS-S-8802 Type II (distributor-reported)

Description

A two-part, manganese-dioxide-cured polysulfide sealant for sealing and repairing integral fuel tanks and fuselages. Solvent-free and highly resistant to aviation gasoline, jet fuel and petroleum chemicals while staying flexible on aluminium, titanium, steel and coatings. Class A is pourable/brushable; Class B is a non-sag paste.

Angad Aviation supplies this 3M product with full traceability and documentation — request a quote for current pricing, pack sizes and lead time.

Brand: 3M
Part No.: AC-350
Chemistry: two-part polysulfide, MnO2-cured, solvent-free
Class A (pourable) and Class B (non-sag paste)
Class B work-life grades: B-1/2, B-2, B-4
Color: brown; intermediate density
Compliance: Class B qualified to AMS-S-8802 Type II (distributor-reported)

Frequently asked

What are the key specifications?

Chemistry: two-part polysulfide, MnO2-cured, solvent-free; Class A (pourable) and Class B (non-sag paste); Class B work-life grades: B-1/2, B-2, B-4; Color: brown; intermediate density.

How do I get pricing and lead time?

Angad Aviation supplies this 3M product quote-first — request a quote and our team responds with current price, pack sizes, availability and lead time. Every order ships with full traceability and documentation.