PRESENT in a coating. The figure is usually expressed as a percentage. The non-volatile material, the material in the dried film, is represented by pigment and binder.As PVC increases, density and hiding ALSO increase. However, performance properties such as durability, scrub ability, stain resistance, and corrosion resistance typically decrease.As PVCN↑ ⇒ Durability and gloss of the paint ↓ Important note:The range of PVCN RECOMMENDED for paint of exterior surfaces of the house is 28-40.The range of PVCN recommended for paint for the prime COAT on METAL is 25 - 40.There is another ratio called pigment/binder ratio which is the weight ratio of the sum of the pigments and fillers to the binder (solids)