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3M AC-380 B-1/2 Aerospace Sealant 3.5oz Kit

Silmid P/N: P0190338
No Stock - Standard lead time 66 business days
Please order in multiples of 24

This 3M™ Aerospace Sealant AC-380 B-1/2 is a family of Class B polysulfide sealants formulated for easy tooling.

Technical Information

  • UN Number 3082 CL9
  • Commodity Code 32141010
  • Country of Origin United States

Data Sheets

Download the 3M AC-380 B-1/2 Sealant technical data sheet (TDS) and the 3M AC-380 B-1/2 Sealant safety data sheet (SDS) from Silmid today. Once you have logged in or signed up, the datasheet will be visible for download if one is available.

Product Properties

Pack Size
3.5oz Kit
Product Colour
Off-White | Black
Manufacturer Name
Manufacturer Part Number
Sealant Class
Class B
Application Time
30 Minutes

Product Information

Our 3M Aerospace Sealant AC-380 B-1/2 is a family of Class B polysulfide sealants formulated for easy tooling. Their quick cure and low density contribute to faster process times and less weight. These two-component, manganese dioxide cure sealants have outstanding resistance to aviation gasoline, jet fuel and chemical products common to the aerospace industry.

3M Aerospace Sealant AC-380 B-1/2 offers a number of advantages and benefits compared to traditional sealants. We designed this family of sealants to save time through its fast cure and save weight through its low density formula. Our manganese dioxide cure product is also highly resistant to aviation fuel and many chemicals common to the aircraft industry, making it ideal for fuel tank and fuselage sealing applications.


  • Helps reduce shrinkage and rework for total cost reduction
  • Excellent tooling properties for easy application
  • Quick cure allows increased throughput
  • Low density formula weighs 34 lbs. less per gallon than traditional sealants
  • Colour - Brown

Additional Content

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3M Brochures
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Shipping information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £12.00*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £30.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.