Manufacturing paint involves a variety of processes and equipment to ensure the desired properties of the paint are achieved. One such piece of equipment is a viscometer, which is used to test the viscosity of the paint. The viscosity is the measure of how thick or thin a liquid is, and it is important to ensure that the paint has the desired thickness for the intended application. Another important property of paint is its color. A spectrophotometer can be used to test the color of the paint and make sure it is consistent with the desired shade. Paint manufacturers also use various mixers to blend different colors together to create new shades. Finally, paint needs to have a certain level of durability to withstand weather and wear. To test this, manufacturers sometimes use abrasion testers to see how well the paint holds up against scratches and other damage.