3M™ Aerospace Sealant AC-770

Lightweight, Effective Sealing
3M™ Aerospace Sealant AC-770 offers a number of advantages and benefits compared to competitive sealants. Its lighter weight formula, 25% lower density than traditional sealants, saves vital aircraft weight. AC-770 is available with a 1 hour and 2 hour application life and typical cure times of 6 hours and 11 hours, respectively. Its light weight and low density make it ideal for fuselage sealing and void filling applications. Our manganese dioxide cured product is also highly resistant to aviation fuel and many other chemicals common to the aerospace industry.

Use with:

• 3M™ Adhesion Promoter AC-132
• 3M™ Adhesion Promoter AC-160
• 3M™ Mix & Dispense Equipment - Dispensers and Accessories

A Sealant Triple Play — Flexible, Strong, and Time Saving
3M™ Aerospace Sealant AC-770 Class B is a two-component thixotropic paste and is lighter than traditional sealants, weighing an average of 3—4 lbs. less per gallon. AC-770 maintains flexibility and bond strength on various substrates under extremes of temperature, weathering, and stress. It is easily applied by extrusion, injection gun or spatula, and exhibits superb tooling properties. Our Class B sealant has no added solvents, which minimizes shrinkage to help reduce rework and improve processes.
 

Learn More about the 3M Aircraft Corrosion Prevention System (PDF, 922.8 Kb)

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-770 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.

Our Best for Your Best
3M is proud to partner with organizations across the spectrum of aerospace and related industries. Enabling efficiencies, reducing process times and lowering aircraft weight is how we execute our never-ending mission to offer best-in-class adhesives, sealants, surface protection products and composite resins 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 value into all of our products, we have a history of saving money by reducing waste, rework and time.