Waterborne polyurethane dispersions (PU dispersion) is the modern class of filming materials. Polyurethane dispersions create stable colloidal system. In PU dispersion systems water acts as dispersion medium, polyurethane urea acts as the dispersion phase.
Polyurethane dispersions combines ecological safety (no solvents), one-component system (curing is performed by water evaporation process) and high physic-mechanical properties (abrasion resistance, adhesion, tensile strength, elasticity).