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3M™ Scotch-Weld™ Void Filling Compound EC-3524 B/A Off-White, 1 gal kit

Part # 048011-56923=32
Mfr. Part # 87250002794
UPC # 48011569239
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3M Scotch-Weld Void Filling and Edge Sealing Compound EC-3524 B/A is a fire retardant, void filling, edge-sealing, potting and complex gap-filling epoxy compound for aerospace weight reduction. It is also effective as an abradable compound in aircraft engines. EC-3524 B/A provides a 90 minute worklife and is fully cured within 48 hours at 75°F (24°C).


EC-3524 B/A is an ideal solution for void filling, edge sealing and as an abradable compound in aircraft engines. 3M formulated the two-part fire retardant epoxy compound with a 90 minute worklife to provide ample time to position parts for fit and keep processes moving forward. It achieves full cure within 48 hours at 75°F (24°C) and is available in blue, off-white or black when mixed. It is a malleable paste with an extended worklife that allows shaping for applications such as a fairing compound for aerodynamic flushness, and can also be used for bonding inserts. As a fire retardant epoxy compound, 3M Scotch-Weld EC-3524 can be used to create an effective seal. Its 100% solids content helps it hold shape as well.


Features and Benefits:

  • Sandable within three (3) hours of mixing
  • Strong, low-density material provides impact resistance and saves weight
  • Non-sag property allows application to multiple work pieces at one time
  • After mixing, blue, off-white and black color allows for preferred appearance
  • Meets aerospace fire retardancy regulations
  • Effective as an abradable compund in aircraft engines
  • Versatile formula can be used for bonding inserts


Edge and void filling
Edge finishing


14 CFR-25.853(a)(d)


Item currently out of stock
Cage Code
Country of origin
United States 
Schedule B
Dimensions (L x W x H)
7.375 x 7.375 x 12.5 IN
Total Shelf Life (days)
Hazmat Code
Package Weight
4.55 LB
FAA Approval Code
8130-3 Eligible
WARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE), CERAMIC FIBERS (AIRBORNE PARTICLES OF RESPIRABLE SIZE), GLASS WOOL FIBERS (INHALABLE AND BIOPERSISTENT) and TOLUENE which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

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