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HomeShop SuppliesAdhesives, Tapes, & SealantsSealantsFuel Tank Sealant3M Aerospace AC-645 B-2 Fuselage & Fuel Tank Sealant - 6 oz Kit
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3M Aerospace AC-645 B-2 Fuselage & Fuel Tank Sealant - 6 oz Kit
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3M Aerospace AC-645 B-2 Fuselage & Fuel Tank Sealant - 6 oz Kit

Part#: 051141-58138
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Manufacturing
Country of Origin: USA
International Orders
Material Safety Information
Material Safety Data Sheet: MSDS1
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Fuel tank filleting is just one of the many important uses for 3M Aerospace AC-645 B-2 fuselage and fuel tank sealant from SkyGeek. This sealant also delivers proficient means for fuel tank and fuselage hole filling and cavity filling, in addition to fuel tank filleting applications. This manganese dioxide-cured, liquid polysulfide, low-density polymer system results from the combined action of the two components included in the kit. AC-645 Class B effectively minimizes the negative effects of jet fuel, chemicals and petroleum products generally found in the aircraft industry. Flexibility and bond strength are preserved on most metal substrates, even under the extremes of temperature, weathering and stress.

Features
  • 6-ounce kit
  • Two-component kit
  • Manganese dioxide-cured
  • Liquid polysulfide polymer system
  • Low density
  • Suitable for use in fuel tank and fuselage hole filling, cavity filling and fuel tank filleting applications
  • Effectively minimizes negative effects from jet fuel, chemicals and petroleum products
  • Preserves its flexibility and bond strength on most metal substrates
  • Perfect for aluminum, titanium, steel, stainless steel, and many coatings
  • Performs even under the extremes of temperature, weathering and stress
  • Mixed compound is a thixotropic paste
  • Readily applied by extrusion gun or spatula
  • Desirable tooling properties
Overall Rating for 3M Aerospace AC-645 B-2 Fuselage & Fuel Tank Sealant - 6 oz Kit
(based on 0 review)

3M Aerospace AC-645 B-2 Fuselage & Fuel Tank Sealant - 6 oz Kit
$0.03
 
Product Details
UOM : Kit
Size : 6 oz
Shipping Weight : 1 pounds
Manufacturer P/N : 051141-58138
ECCN : EAR99
Schedule B Code : 3214.10.0010
Approvals : STM 40-107
Disclaimer: While reasonable efforts have been made to ensure all information on this website is accurate, SkyGeek.com and Styles Logistics, Inc. do not assume responsibility for any errors or omissions. All specifications, illustrations, data and prices are subject to change without notice.
Specifications
Typical Physical & Application Properties
Color
Base
Accelerator

Off-White
Black
Mixing Ratio (by weight) 100 base / 10 accelerator
Nonvolatile Content 97%
Base Viscosity (Brookfield #7 Spindle @ 2 RPM) 8,000 - 12,000 poise
Application Life 2 hours
Typical Tack-Free Time 6-7 hours
Typical Cure Time 2-4 hours

Typical Properties of Cured Compound (AMS-S-83318)
Color Black
Specific Gravity 1.07
Hardness 55 Shore A
Service Temperatures -65 to +250F (-55 to +121C)
Low Temp. Flexibility No cracking, checking or loss of adhesion when tested at -65F (-54C)
Corrosion None
Repairability 12 piw / 100% cohesive failure to other STM 40-107 qualified sealants
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