High Performance Epoxy Medium Hardener

TotalBoat High Performance Epoxy Resin and High Performance Non-Blushing Hardeners can be poured (to measure by weight or volume), or dispensed in exact measure using TotalBoat 2:1 Epoxy Pumps. Our 2:1 Epoxy Pumps are intended for use only with TotalBoat High Performance Epoxy Resin and Hardener containers, and they will not fit other marine 2:1 epoxy resin and hardener containers. 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). Need fiberglass cloth, spreaders, or other supplies for your project? Build your own resin and fiberglass kit with our interactive bundle tool. 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″ 1/4″, up to 75°F, for larger pours, slabs 1/8″, over 75°F, for larger pours, slabs 3/8″, up to 75°F, for smaller castings using up to 1 oz. of epoxy 1/4″, over 75°F, for smaller castings using less than 4 oz. of epoxy **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.