
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.



