Epoxies and polyurethanes are thermosetting polymers that can be formulated for various uses. When formulated for form coating, these materials differ slightly.

A form coating epoxy can only be applied by brush or roller, whereas a urethane form hard coat can be applied by low pressure, high pressure, or Qwik Spray equipment.

The epoxy is harder than the urethane and has greater tensile strength. It is moisture-insensitive, meaning it can be used in damp and humid environments. Urethanes have a shorter pot life but also have a shorter cure time than epoxies for quicker turnarounds on projects.