Pneumatic Spray Coating without assistance of a surface with a Composition of Architectural Coating Water, viscose

摘要

A process, apparatus and Coating composition for Coating by Spraying without Air Assistance (e.g. without air) of a surface with a Composition of Architectural Waterproof Coating, viscose(For example a Painting appropriate to hide marks on surfaces where said composition shows a non Newtonian Flow and contains a Polymer Binder and more than 30% by weight of Solid ingredients (especially those that are selected as thickeners, opacifiers,Pigments and Extenders) where the composition is expelled from an opening in a Nozzle under a pressure of between 2.5 and 5 bars that can be generated by a manual Pump or Electric. An appropriate composition has a viscosity of at least 0.5 pa.seg Brookfield and preferably does not exceed 50 PA.SEC and contains predominantly associative Thickener to spray through a circular or oval Hole or as an alternative has an apparent extensional viscosity of between 0.05 and 0.5 pa.seg. Preferably, the nozzle has the means to exert a lateral force on the composition in such a way that it enters the hole with a whirling Motion.