In larger operations pigs move on conveyor systems through scalding tunnels and dehairing machines with rotating rubber fixtures.

The birds are stunned prior to bleeding and then passed through either scalding water or a steam tunnel and through rotating devices with rubber scrubbers to remove feathers.

Pour the materials onto the base and use the rubber scratch board to make the surface flat and make the bottom materials permeate into the cement base. Do not leave some areas unpainted.