There are two roller applications:
1) Roller coater in automatic coating lines, made up of a pair of two rollers, a spreading and a gripping one. By changing the pressure of the spreading roller on the wood, as well as its speed, the basic weight of the product applied changes as well.
2) Revolving brush for the manual application of coatings, suitable to be used on flat surfaces. Consisting of a cylinder covered with synthetic or natural bristles rotating on the central pin fixed to the handle.