Pro Glas 4:1 Epoxy Hardener- Part B

$26.95 $0.00( / )
  • Low viscosity
  • High clarity
  • Good chemical resistance
  • Used in conjunction with Epoxy Resin 1300 Part A
  • Available in fast, medium and slow speeds
  • Ships within one business day
  • Slow
  • Medium
  • Fast
  • 8 oz
  • Pint
  • Quart
  • 1/2 Gallon
  • Gallon
  • 5 Gallon
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 These hardeners are meant to be used with 1300 epoxy resin- Part A. The mix ratio is 4 parts resin to 1 part hardener. It comes in three speeds- fast, medium and slow. Features low odor and low mixed viscosity. It also has low shrinkage and good chemical resistance.

Slow Hardener gel time: 35-45 minute at 72 deg F with set time of 4 hours at 77 deg F. Medium Hardener gel time: 20-25 minute gel time at 72 deg F with set time of 6 hours at 77 deg F. Fast Hardener gel time: 10-15 minute gel time at 72 deg F with set time of 4 hours at 77 deg F.

This resin is used in many applications including hand layup, laminating, marine construction, tooling, epoxy face coats, kit aircraft and vacuum bagging.

Prop65 Warning Icon WARNING: This product can expose you to chemicals including ethylene oxide and propylene oxide which is known to the State of California to cause cancer and developmental problems. For more information go to


DOWNLOAD: Fast Hardener: TDS Medium Hardener: TDS Slow Hardener: TDS | Fast Hardener: SDS Medium Hardener: SDS Slow Hardener: SDS


Slow, Medium, Fast


8 oz, Pint, Quart, 1/2 Gallon, Gallon, 5 Gallon