Clears are mostly categorized to dualistic kinds which are glossy and matte. Likewise, some clears are not water-based and use paint thinner as a diluent. The benefit of water-based clears over other paint thinners that are watered down with paint thinner is that they do not cause different cancers. Some clears are for wood while others are for metals, cement and exterior surfaces of the structure, each of which is used in a different way depending upon the chosen surface. Some clears should be applied with a brush on the chosen surfaces and others are in hand as spray. Water-based clear used as a protective coating on wood surfaces makes a strong coating on painted surfaces and keeps the surfaces away from water, sunlight and weather circumstances. This product is watered down with water and straightforwardly applied on wooden surfaces with a brush.