Simply, the higher the temperature of a coating, the less resistance there is to flow, and the lower the viscosity becomes. ![]() So What is the Problem with Viscosity?įirst of all, it MUST be understood that the viscosity of aqueous coatings is dependent upon temperature. ![]() Commonly used Zahn-type cups should only be used as a comparative tool to evaluate or adjust similar coatings, but should not be considered a viscometer. Other simpler, less expensive devices, called orifice viscometer cups, numbered according to hole size, are also used. The viscosity of Cork manufactured aqueous coatings is measured at 70 degrees F utilizing a Brookfield viscometer which yields an accurate, reproducible measurement in centipoise (cps). When we use coatings, we need to understand viscosity, because it is key to accurate application, and a finished coated product that achieves the target design. Coating viscosity is the property of a fluid that causes it not to flow easily because of the resistance of its molecules. Viscosity tells us how thick or thin a liquid is. Understanding and Testing of Viscosity in Coatings
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |