Ford Cup is a Viscosity Cup commonly used for viscosity testing of coatings, inks, and liquid chemical products. It is a flow control cup designed according to ASTM D1200 standard to measure the flowability and viscosity of liquids. The Ford Cup works by filling the cup with the test liquid, then quickly inverting and rapidly lifting it to allow the liquid to flow out from the bottom.

By measuring the time taken for the liquid to flow out (known as the efflux time), the viscosity of the liquid can be determined. The Ford Cup has scale markings on its walls for measuring the efflux time and comparing it with specific viscosity ranges. The Ford Cup is available in different specifications and numbers, such as Ford No. 4 Cup, Ford No. 3 Cup, etc., with each number corresponding to a different cup orifice diameter and flow rate. Different Ford Cups are suitable for liquids within different viscosity ranges. By using the appropriate Ford Cup, viscosity of liquids can be quickly and relatively accurately tested. The Ford Cup is widely used in the production and quality control processes of coatings, inks, and liquid chemical products. It is a simple and user-friendly tool for rapid measurement of liquid flowability and viscosity, helping to ensure product consistency and compliance with specifications.
