MIL-PRF-85322 Coating, Elastomeric, Polyurethane, Rain-ErosionThis specification establishes the requirements for rain erosion coatings with a maximum volatile organic compound \(VOC\) content of 420 grams/liter \(g/L\) \(3.5 pounds/gallon \(lb/gal\)\) for use on exterior aircraft structures. The antistatic component \(if applicable\) will have a maximum VOC limit of 720 grams/liter \(g/L\) \(6.0 lb/gallon \(lb/gal\)\).