MAS Epoxies Slow Hardener
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MAS Epoxies Slow Hardener

  • Use with MAS Epoxy Resin, Mix Ratio 2:1
  • Extends Working and Cure Times in Diverse Range of Climate Conditions
  • Size: Gallon (3.8 L)
  • Item #: 
    MAS Epoxies
    Model #: 
    Shipping Weight: 
    8.70 Lbs.




    Warning This product ships ground only

    MAS Epoxies Slow Hardener is a phenol-free resin hardener that provides high reactivity and extended gel time allowing for controlled and extended application periods.


    • Optimized for composite wet lay-up, hardware and secondary bonding, moisture-exclusive coating and surface fairing
    • Cures blush-free and eliminates the need for time-consuming wash downs during ongoing laminations and repetitive coat builds
    • Good UV stability
    • Excellent osmotic resistance
    • Cures under high temperature and humidity conditions
    • Ideal for fast wet-out of reinforcing fabrics
    • MAS Fast Hardener may be added to MAS Slow Hardener to accelerate / adjust curing times

    Handling characteristics:

    • Mix ratio: (2) parts resin : (1) part hardener
    • 30 Minute pot life
    • 4 Hour working time at 70° F
    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to


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