What Does Solids By Weight Mean?
Solids by weight refer to the percent ratio of the mass of the non-fluid particles or dissolved solids in a given mixture relative to the total mass of said mixture or solution.
Solids by weight percentage calculations are often used when specifying or preparing paints and other coatings to be applied on a metal's surface to prevent corrosion. This is important because the solid portion of the coating is the fraction that will dry once the coating is applied; the fluid portion will often evaporate and is only present to facilitate ease of application. Therefore, it is vital to know what percent of the paint is solid.