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TotalBoat Fast Hardener is a low-viscosity epoxy curing agent for use when shorter working and curing times are needed. Our 5:1 Fast Hardener provides adequate working time at cooler temperatures. Use with both TotalBoat Traditional 5:1 Epoxy Resin and most other 5:1 epoxy brands.
At 75°F, TotalBoat Fast Hardener will have a pot life of 12 minutes. When combined with 5:1 Epoxy Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties.
Important: Not intended for clear coating applications. For clear coating applications, we recommend TotalBoat High Performance Epoxy.
Note: TotalBoat 5:1 Fast Hardener is also available in a 10.4 gallon container, for use with 55 gallon drums of 5:1 resin. Please contact us for pricing.
Hardener Color | Amber (not intended for clear coating) |
---|---|
Mix Ratio by Volume | 5A to 1B |
Mix Ratio by Weight | 100A to 18B |
Minimum Recommended Temperature | 40°F |
Pot Life at 75° F | 12 minutes |
Work Life at 75° F (Thin Film) | 60 minutes |
Set Time at 75° F (Thin Film) | 6 hours |
Cure Time at 75° F (Thin Film) | 1 to 4 days |
Tensile Strength | 8,000 psi |
Tensile Modulus | 410,000 psi |
Tensile Elongation | 3.5% |
Compressive Strength | 11,500 psi |
Flexural Strength | 14,400 psi |
Flexural Modulus | 460,000 psi |
Volumetric Shrinkage | 4.4% |
Hardness, Shore D | 84 |
For a side-by-side comparison of the physical and handling properties of TotalBoat Fast and Slow Hardeners, please click the 5:1 Epoxy Resin & Hardeners Tech Data link.
Important Safety Information
Always wear protective clothing and equipment to protect your eyes, skin, and lungs when working with TotalBoat Traditional Epoxy Resin and Hardeners. Personal protective clothing should include appropriate gloves, safety glasses or goggles, a proper respirator, and a proper apron or similar protective clothing.




