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3M™ Scotch-Weld™ Fuel Resistant Coating EC-776

Part Number EC-7763M Product Number EC-776
Products
  • Resists oil, gasoline, and aromatic fuels to protect against exposure to fuel
  • Excellent low-temperature flexibility
  • Meets aerospace industry customer specification requirements
  • Amber color helps identification
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Specifications
Attribute Name
Value
Application
Specialty Coating
Brand
Scotch-Weld™
Capabilities
Aircraft Maintenance & Production Efficiency
Chemical Base
Elastomer
Color
Clear Amber
Cure Temperature
Room Temperature
Density
0.9 g/cc, 0.9 Gram Per Litre
Percent Volatile
76 Percent
Product Type
Urethane Coating
Storage Environment
Room Temperature
Product Details
  • Resists oil, gasoline, and aromatic fuels to protect against exposure to fuel
  • Excellent low-temperature flexibility
  • Meets aerospace industry customer specification requirements
  • Amber color helps identification
  • Provides good adhesion to synthetic rubber, metal, glass and many plastics

We developed 3M™ Scotch-Weld™ Fuel Resistant Coating EC-776 as a general purpose, solvent based adhesive coating that provides good adhesion to synthetic rubber, metal, glass and many plastics. Our fuel and oil resistant elastomer based coating provides good flexibility, retaining its flexibility across a range of temperatures.

aircraft in flight
Resists oil, gasoline, and aromatic fuels to protect against exposure to fuel
3M™ Scotch-Weld™ Fuel Resistant Coating EC-776 is an ideal solution for protecting many aircraft components that may be damaged or their performance diminished by coming in contact with aviation fuel. Any vulnerable component such as those adjacent to refuel/defuel fittings, fuel dump valves, drain ports, access panels, system plumbing and fuel tank vents will be better protected against pre-mature failure caused by exposure to fuel. Our fuel resistant coating can also be used to coat aluminum or steel fuel tanks using the fill and drain method. Certain additives and other chemicals in aviation fuels can increase the erosion of the fuel tank top coat inside the fuel tank. Inner fuel tank top coatings can peel and generate chips and particles that clog engine fuel filters, increasing maintenance costs and prolonging aircraft downtimes. 3M™ Scotch-Weld™ Fuel Resistant Coating EC-776 can help reduce periodic fuel tank maintenance requirements, costs and downtime.

We engineered 3M™ Scotch-Weld™ Fuel Resistant Coating EC-776 to meet customer specification requirements for performance and flexibility in the aerospace industry. Under normal atmospheric conditions this coating becomes tack free in about 20 minutes and should thoroughly dry in approximately 24 hours. It may be applied by brush or flow applicator depending on the needs of your process.

Product 3M™ Fuel Resistant
Coating EC-776
3M™ Fuel Resistant
Coating EC-776SR
Base Oil Resistant Elastomer Oil Resistant Elastomer
Net Weight 7.3 lbs/gal 7.2 lbs/gal
Consistency Thin Syrup Thin Syrup
Solvent Blend MIBK and Ethanol MIBK
Flash Point (Closed Cup) 55°F (13°C) 73°F (23°C)
Viscosity 1500 ± 500 cps 1200 ± 800 cps
Color Transparent Amber Transparent Red
Solids Content (Approx.) 24% (by weight) 19% (by weight)
Brookfield Viscometer RVF #2 spindle @ 20 rpm RVF #2 spindle @ 10 rpm


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 3M executes its 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. The 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 its products, 3M has a history of saving money by reducing waste, rework and time.

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