Effect of Dilution of Material and Application Tool on Thickness of Fluid-Applied Polyurethane Membrane

Abstract

The thickness of fluid-applied polyurethane membrane is mainly affected by the viscosity and application tools. Then, the four levels of viscosity were prepared by changing the adding ratio of diluent from 0 to10%. Polyurethane membranes were applied on substrate by various trowels and paint rollers. After curing the membrane, thickness was measured at 50mm intervals for all areas of the membrane. Based on the experimental results, the proper combination of diluent ratio and application tool for making a good membrane of having sufficient thickness was proposed.