“Sealer” means a coating formulated for application to a substrate to prevent subsequent coatings from being absorbed by the substrate or to prevent harm to subsequent coatings by materials in the substrate.

Source. #8695, eff 7-27-06, ss by #10736, eff 1-1-15 (formerly Env-A 4202.01(bc)); ss by #14202, eff 2-26-25