Bont Formulated a resin for ice speed skates that is super stiff, yet becomes moldable at low temperatures. In addition a fast cure time which is critical. Bonts resin becomes soft at just 60°C (140°F) which is the lowest in the industry. Once you heat the resin, mold the boot, and let it set, it is permanently set without the need to remold. Furthermore you can also reheat the resin as many times as needed.

The temperature of the air and the amount of humidity are critical in determining the amount of hardener that needs to be added to the resin.  Bont uses a computer that mixes the resin and hardener together and dispenses the resin after measuring the air temperature and humidity.

In contrast most other manufacturers use a process known in the industry as pre-preg. This is where the resin is “pre-impregnated” into the carbon fiber. In virtually all applications, and then the resin is chosen by the carbon fiber manufacturer, not by the skate manufacturer. The Boot manufacturer has no way of altering the resin to meet the heat mold ability requirements of modern skate boots. Moreover that is why they require very high temperatures just to make the boots slightly heat moldable.

Thermo mouldable Carbon Shin guards heat molding instructions here