This material is applied by a specially designed spray machine in which water is mixed with dry materials and made into a free flowing homogenous slurry. This fully wetted slurry is then pumped to a spray nozzle where it is atomised with air and sprayed effectively without rebound loss.

The main features of the machine are:-

• A large capacity hopper which is designed to accept 3+ tonnes of material.
• Automatic control of mixing and water additions to provide a high consistency of wet sprayed material.
• An automatic weighing system to provide the ability to programme precisely the amount of material required per tundish.
• A remote weight display unit that allows the operator to observe from the tundish position the amount of material applied during the spray application.