Define dry film thickness, theoretical coverage, and solids by volume, solids by weight,in relationship to Nationwide Products?
FILM THICKNESS: is measured in mils or microns. 1 mil = .001 inches = 25.4 microns. NationwideChemical Coatings uses mils as the mode of measuring film thickness. A 100% Solids Material applied at 100 square feet per gallon = 16 mils wet film thickness and 16 mils dry film thickness (since it is 100% solids, there is nothing to evaporate). Therefore a 50% Solids Material applied at 100 square feet per gallon = 16 mils wet film thickness and 8 mils dry film thickness. Theoretical Coverage or Theoretical Spread Rate: Allows for application loss (such as material lost while spraying), and surface irregularities when determining working requirements. SOLIDS BY VOLUME: the volume of the non-volatile portion of coating divided by the total volume, expressed as a percent. A 1 Gallon can of Paint that had 50% solids by volume would equal a 1/2 gallon of total solids. SOLIDS BY WEIGHT: the portion of a coating that remains as part of the dry film thickness expressed as weight. A 1 Gallon can of
