Protective Coatings Application - Unit 3.2.1: Mechanical and Hand Preparation Standards

Objective: To understand that mechanical and hand preparation standards exist in the protective coatings industry and these standards will be specified on contracts.

  • Some contracts will specify mechanical and hand preparation as opposed to abrasive blast cleaning.
  • The process is used extensively for previously coated steel, but never on mill scale as mechanical hand preparation will not remove mill scale from the surface.