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Amber 250 ml Retaining Compound

Item #100869447
    Shipment Options

Product details

  • 250 ml Container
  • Amber Color


  • LOCTITE® 661 is an amber, anaerobic, low viscosity, high strength methacrylate retaining compound that also cures in the presence of UV light. It’s therefore ideal for applications where any migration of the adhesive from the joint must be prevented. Fixture time on steel is 4 min and maximum diametrical clearance is 0.15 mm. Service temperature is -55 to 175ºC.


  • 1-part product, requires no mixing
  • Dual-cure - anaerobic and UV light
  • High strength
  • Low viscosity, small gap filling


Cure Speed Full (Steel) 24 h
Gap Fill (Diametral) 0.006 in
Cure Speed Fixture 5 min
Temperature Range [Min] -65 °F
Container Size 250 ml
Application Where Fast Curing is Needed
Strength High
Viscosity (cP) 500
Color Amber
Temperature Range [Max] 350 °F
Shear Strength 15 N/mm2
Container Type Bottle
Recommended Primer T™, N™
Weight 0.71 LB
EAN or UPC 79340661417
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