n the manufacture of natural wooden flooring, the inevitable knotholes and cavities need to be filled and the surface of the wooden flooring needs to be smooth. Manufacturers overcome this by the application of UV filler putty which penetrates the cavities. However, it is important that the putty is applied smoothly and evenly and does not leave a build up on the applicator.

Manufacturers have found that the ideal solution is by using an FEP Belt as the applicator.