4 cups of urea-formaldehyde Resin viscosity refers to the use of 4 cups to measure the viscosity characteristics of urea-formaldehyde Resin materials. Urea-formaldehyde Resin is often used in Coating, Adhesive and other fields, and its viscosity has an important impact on product performance. By pouring the urea-formaldehyde Resin sample into 4 cups of coating and observing its outflow time, information about the urea-formaldehyde Resin viscosity can be obtained to guide the optimization of the production and application process.