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3M™ Aerospace Sealant AC-730 B-2, 3.5 oz Kit, 24 per case

Part Number AC-7303M Product Number AC-7303M ID 70005203933
  • Non-chromate corrosion inhibitive formula helps comply with chromate reduction initiatives
  • Easier application – requires less mixing time and less tooling to apply
  • Available in Class B and C to meet a range of requirements
  • Low shrinkage results in less rework
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Specifications
Attribute Name
Value
Application
Corrosion Protection, Sealing
Application Life
2 Hour
Brand
3M™
Capabilities
Aircraft Maintenance & Production Efficiency, Aircraft Sustainability, Aviation Safety Enhancement
Color
Brown
Cure Type
Standard Cure
Product Form
Kit
Product Volume
3.5 Ounce
Storage Environment
Room Temperature
Product Details
  • Non-chromate corrosion inhibitive formula helps comply with chromate reduction initiatives
  • Easier application – requires less mixing time and less tooling to apply
  • Available in Class B and C to meet a range of requirements
  • Low shrinkage results in less rework

3M™ Aerospace Sealant AC-730 is a polysulfide fuselage sealant formulated for easy tooling. Our corrosion inhibitive, manganese dioxide cure product is highly resistant to aviation fuel and chemicals common to the aerospace industry. It provides an effective barrier against corrosion on aluminum and between dissimilar metals.

Technician with headlamp performing routine maintenance on aircraft floor
Engineers and maintenance professionals from companies around the world trust 3M™ Aerospace Sealants for sealing critical gaps and to help prevent corrosion
We engineered 3M™ Aerospace Sealant AC-730 specifically for fuselage applications, where it offers a number of advantages and benefits compared to traditional sealants. For starters, it is corrosion inhibitive yet contains no added chromate, which may help you comply with chromate reduction initiatives and OSHA requirements. AC-730 maintains flexibility and bond strength on aluminum, and between dissimilar metals under extremes of temperature, weathering and stress. Designed for easy tooling, it has outstanding resistance to jet fuel, chemicals and petroleum products common throughout the aerospace industry.

Use with:

Class Distinction
3M™ Aerospace Sealant AC-730 Class B is a two-component thixotropic paste. AC-730 Class B maintains flexibility throughout its service life. It is easily applied by extrusion, injection gun or spatula, and exhibits superb tooling properties. Our Class B version has no added solvents, which minimizes shrinkage to help reduce rework and improve processes.

3M™ Aerospace Sealant AC-730 Class C is a flowable, fay surface material, easily applied by spatula, brush, roller or extrusion gun. It also maintains flexibility and bond strength on metal substrates under extremes of temperature, weathering, and stress.

Product Class Application Life* Typical Tack Free Time* Typical Cure Time*
(30 Shore A Hardness)
Specific Gravity Applications
3M™ Aerospace Sealant AC-730 B-1/2 1/2 hour 4 hours 6 hours 1.52 Non-Chromated
Correction Inhibitive
B-2 2 hours 16 hours 24 hours
B-6 6 hours 48 hours 72 hours
B-12 12 hours 108 hours 120 hours

*Measured at Standard Condiitons (77°F / 25°C anf 50% Relative Humidity)


Product Class Application Life* Typical Tack Free Time* Typical Cure Time*
(30 Shore A Hardness)
Specific Gravity Applications
3M™ Aerospace Sealant AC-730 C-8 (24) 8 hours 24 hours 7 days 1.50 Non-Chromated
Correction Inhibitive
C-48 (168) 48 hours 168 hours 5 weeks

*Measured at Standard Condiitons (77°F / 25°C anf 50% Relative Humidity)

Applications
  • Seals faying surfaces of mating parts
  • Seals joints from passage of liquid or air
  • Prevents corrosion and channeling leakage

Smart Sealants, Robust Results
When you use 3M Sealants, you're applying science, ingenuity, aerospace expertise and cost saving solutions. They have outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. 3M™ Aerospace Sealant AC-730 is carefully formulated for customers in the aerospace industry. Always read the SDS and Tech Data Sheet along with your internal governing documents prior to use.

Compare More 3M Aerospace Sealants (PDF, 1.06 Mb)

Our Best for Your Best
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Creating efficiencies, reducing process times and lowering aircraft weight is how we execute our never-ending mission to offer best-in-class adhesives, sealants and other products that effectively reduce costs on multiple fronts. Professionals across the industry know the numerous advantages of 3M Aerospace. Our brand is widely recognized for the highest standards of quality and performance, adding value to the final results. By engineering reliability, longevity and performance into all of our products, we have a history of saving money by reducing waste, rework and time.

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