Rotomech supplies complete Electrocoat/CED Coating Filtration systems.Ultrafiltration is a process for separating a portion of the low molecular weight component of the paint bath from the main paint stream.

In electro coat paint systems, the permeate produced by the ultra-filter contains water and paint solubilizers. The permeate is used in the paint line rinse section. This recycling method provides a closed-loop rinse system for recovering paint drag-out. The permeate can also be diverted to drain to control the conductivity of the paint. Impurities that might come due to pre-treatment like salt, solubilizers etc. can also be removed by ultrafiltration. Depending on the Molecular Weight Cut Off (MWCO) of the membrane used, macromolecules may be purified, separated, or concentrated in either fraction.