Sealants
3M Aerospace Sealant AC-380 (Class B)
SKU: AC-380
Brand: 3M
Pricing on request
Specifications
| Part Number | AC-380 |
|---|---|
| Material | two-part, manganese dioxide-cured polysulfide, solvent-free |
| Compliance | Meets AMS3281 Rev. F, Type 2, Class B (low-density, fuel-resistant polysulfide integral fuel-tank/fuselage sealing compound) |
Description
A fast-cure, solvent-free, low-density polysulfide integral fuel-tank and fuselage sealant that cures at room temperature to a resilient fuel-resistant rubber. Its low specific gravity (~1.1) makes it roughly 30% lighter than conventional fuel-tank sealants, saving aircraft weight. Applied by extrusion, injection gun or spatula for fillet sealing of seams, joints and fasteners in fuel tanks and other critical structure.
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-380
- Chemistry: two-part, manganese dioxide-cured polysulfide, solvent-free
- Specific gravity: ~1.1 (low density; ~30% lighter than conventional fuel-tank sealants)
- Color: brown (mixed)
- Application life classes: B-1/2, B-2, B-4
- Cure: room-temperature, fast cure; low shrinkage
- Service: intermittent use to 360 degF (182 degC) per AMS3281
- Form: thixotropic paste; resistant to aviation gasoline and jet fuel
- Compliance: Meets AMS3281 Rev. F, Type 2, Class B (low-density, fuel-resistant polysulfide integral fuel-tank/fuselage sealing compound)
Frequently asked
What are the key specifications?
Chemistry: two-part, manganese dioxide-cured polysulfide, solvent-free; Specific gravity: ~1.1 (low density; ~30% lighter than conventional fuel-tank sealants); Color: brown (mixed); Application life classes: B-1/2, B-2, B-4; Cure: room-temperature, fast cure; low shrinkage; Service: intermittent use to 360 degF (182 degC) per AMS3281; Form: thixotropic paste; resistant to aviation gasoline and jet fuel.
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.
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