Which TotalBoat High Performance Hardener Do I Need for My Project?
High Performance Fast Hardener – Use High Performance Fast Hardener for the fastest cure and shortest working time at room temperature, or for an overnight cure in low temperatures (minimum 55°F).
High Performance Medium Hardener – Use High Performance Medium Hardener for most common applications, or for an overnight cure at room temperature (77°F).
High Performance Slow Hardener – Use High Performance Slow Hardener for extended working time and cure time at room temperature, or when working in warmer temperature conditions. If you are new at working with epoxy resin, the slow speed hardener will give you more working time, which you may find helpful.
Even better, you can customize pot life and cure time further by combining the different hardeners with each other. Just remember to always maintain the proper ratio of 2 parts resin to 1 part hardener by volume.
High Performance Medium Hardener Details
- For use with TotalBoat High Performance Epoxy Resin only.
- Provides a medium-speed cure time at room temperature that is adequate for most common applications.
- Can be combined with other TotalBoat High Performance Hardeners to customize or fine-tune working properties and cure time.
- Color: Clear
- Sizes: Group Size A – Pint (15.4 fl. oz.), Group Size B – Half Gallon (62.9 fl. oz.), Group Size C – Gallon (127.4 fl. oz.)
- Medium hardener is also available in a 26.1 gallon container, for use with drums of High Performance Resin. Please contact us for pricing.
- Note: Hardener sizes correspond to group sizes of TotalBoat High Performance Epoxy Resin (sold separately).
| Properties (Admixed) | High Performance Fast Hardener | High Performance Medium Hardener | High Performance Slow Hardener |
| Color | Clear/amber | Clear | Clear |
| Mix Ratio by Volume (Resin:Hardener) | 2:1 | 2:1 | 2:1 |
| Mix Ratio by Weight (Resin:Hardener) | 100A:46B | 100A:45B | 100A:45B |
| Gel Time at 77°F (150g mass) | 10 min. | 25 min. | 40 min. |
| Tack-Free Time at 77°F | 2 hrs. | 3 hrs. | 5 hrs. |
| Full Cure at 77°F | 2 days | 3.5 days | 5 days |
| Minimum Recommended Temperature | 55°F | 55°F | 55°F |
| Tensile Strength | 7,700 psi | 8,000 psi | 7,300 psi |
| Tensile Modulus | 380,000 psi | 390,000 psi | 360,000 psi |
| Tensile Elongation | 7.5% | 7.0% | 6.7% |
| Flexural Strength | 11,600 psi | 11,600 psi | 10,200 psi |
| Flexural Modulus | 330,000 psi | 360,000 psi | 330,000 psi |
| Compressive Strength | 9,500 psi | 9,900 psi | 8,900 psi |
| Volumetric Shrinkage | 84 | 83 | 83 |
| Hardness, Shore D | 84 | 83 | 83 |
| Intended for Clear Coating Applications? | YES | YES | YES |
| Maximum Pour Depth, Per Layer** | Less than 1/8″ | 1/8″ |
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**NOTE: For 2:1 Slow Hardener maximum pour depth: Helping to dissipate heat from the cure will generally promote a more clear, smooth surface. If heat is not allowed to dissipate sufficiently from a mold or casting, it is still possible for pours, even with these guidelines, to generate enough heat to leave an imperfect surface or a slight yellow cast in the cured product.
- Application Temperature/RH: Minimum of 55°F, relative humidity 0-90%
- Recommended Temperature for Dispensing by Pump: 60-70°F
- Application: Brush, Roller, or Syringe; can also be poured and spread with an epoxy spreader.
- Pot Life @ 77°F: 25 minutes
- Tack-Free Time @ 77°F: 3 hours
- Full Cure @ 77°F: 3.5 days
- Safety Information: Work in a well-ventilated area and wear protective eyewear, protective clothing, and suitable gloves.
- High Performance Epoxy Resin Color: Clear
- High Performance Medium Hardener Color: Clear
- Mix Ratio by Volume: 2A:1B (2 parts epoxy resin to 1 part hardener)
- Shelf Life: At least one year (under proper storage conditions)
High Performance Epoxy Slow Hardener
High Performance Epoxy Fast Hardener
