Thickness required always depends on dewpoint differential and surrounding conditions. Dewpoint Chart or Dew Point Calculator.
Applicator must, at all times during use, wear a Bureau of Mines-approved, 2-stage (charcoal and cotton) paint spray respirator, designed for removal of organic vapors, or a fresh air-supplied type of respirator. Protective clothing and protective eye-wear (goggles) are recommended.
Do not apply over chlorinated rubber or where chlorinated rubber has been. Even after sandblasting, the chlorination can attack the solvents and brittle the coating.