The viscous type is generally simpler because it relies on hydrodynamic friction from fluids with high viscosity.

A hydrodynamic friction washing process allows for savings potential in plastics recycling and results in decontaminated plastic goods that are free from cellulose and adhesives.

When a TM protein is anchored to the membrane skeleton and immobilized, the viscosity of the fluid around it becomes higher, due to hydrodynamic friction effects at the surface of the immobilized protein.