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3M Aerospace Sealant AC-735 (Class B)

Sealants

3M Aerospace Sealant AC-735 (Class B)

SKU: AC-735

Brand: 3M

Pricing on request

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Specifications

Part NumberAC-735
Materialtwo-part, manganese dioxide-cured polysulfide; non-chromate corrosion-inhibitive
ComplianceMeets MIL-PRF-81733 Type II, Class B (non-chromate, corrosion-inhibitive); also reported to meet AMS3265

Description

A non-chromate, corrosion-inhibitive, fast-cure, low-density two-component polysulfide fuselage sealant used for fuselage sealing, void filling and corrosion control. The manganese dioxide-cured, thixotropic paste (Class B) is applied by extrusion, injection gun or spatula; a companion Class A pourable/brushable liquid is also offered. Its low density is roughly 25% lower (about 3-4 lb/gal lighter) than traditional sealants.

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-735
  • Chemistry: two-part, manganese dioxide-cured polysulfide; non-chromate corrosion-inhibitive
  • Density: low density (~25% lower; ~3-4 lb/gal lighter than traditional sealants)
  • Form: thixotropic paste (Class B); Class A is a pourable/brushable liquid
  • Application life classes: B-1/2, B-2
  • Applications: fuselage sealing, void filling, corrosion control
  • Compliance: Meets MIL-PRF-81733 Type II, Class B (non-chromate, corrosion-inhibitive); also reported to meet AMS3265

Frequently asked

What are the key specifications?

Chemistry: two-part, manganese dioxide-cured polysulfide; non-chromate corrosion-inhibitive; Density: low density (~25% lower; ~3-4 lb/gal lighter than traditional sealants); Form: thixotropic paste (Class B); Class A is a pourable/brushable liquid; Application life classes: B-1/2, B-2; Applications: fuselage sealing, void filling, corrosion control.

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.