SSPC Surface Preparation Standards for Hand and Power Tool Cleaning Flashcards
Hand Tool Cleaning
Hand tool cleaning removes all loose mill scale, loose rust, loose paint, and other lose detrimental foreign matter. It is not intended that adherent mill scale, rust, and paint be removed by this process. Mill scale, rust, and paint are considered adherent if they cannot be removed by lifting a dull putty knife.
SSPC-SP 2
Power Tool Cleaning
Power tool cleaning removes all loose mill scale, loose rust, loose paint, and other loose detrimental foreign matter. It is not intended that adherent mill scale, rust, and paint be removed by this process. Mill scale, rust, and paint are considered adherent if they cannot be removed by lifting a dull putty knife.
SSPC-SP 3
Commercial Grade Power Tool Cleaning
A commercial grade power tool cleaned surface, when viewed without magnification, shall be free from visible oil, grease, dirt, dust, coating, oxides, mill scale, corrosion products, and other foreign matter, except as noted in Section 2.2. Random staining shall be limited to no more than 33% of each unit area of surface. Staining may consist of light shadows, slight streaks, or minor discolorations caused by stains of rust and paint may also be left in the bottom of the pites if the original surface is pitted.
SSPC-SP 15
Power Tool Cleaning to Bare Metal
A steel surface cleaned with power tools to bare metal, when viewed without magnification, shall be free from visible oil, grease, dirt, dust, coating, oxides, mill scale, corrosion products, and other foreign matter. Slight residues of rust and paint may also be left in the bottom of the pits if the original surface is pitted.
The surface profile roughness shall be a minimum of 25.4 um (1.0 mil) as measured in accordance with Method C of ASTM D 4417 or other mutually agreed upon method. The peaks and valleys on the surface shall form a continuous pattern with no smooth, unprofiled spots in between.
SSPC-SP 11
