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Surface Preparation

The document summarizes 11 surface preparation specifications from SSPC. It provides the specification number, title, and brief description of each specification for removing rust, mill scale, paint, and other contaminants from metal surfaces using methods like solvent cleaning, hand tool cleaning, power tool cleaning, and blast cleaning.

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Guru Gowda
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116 views1 page

Surface Preparation

The document summarizes 11 surface preparation specifications from SSPC. It provides the specification number, title, and brief description of each specification for removing rust, mill scale, paint, and other contaminants from metal surfaces using methods like solvent cleaning, hand tool cleaning, power tool cleaning, and blast cleaning.

Uploaded by

Guru Gowda
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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SUMMARY OF SURFACE PREPARATION SPECIFICATIONS

SSPC SPECIFICATION NO. TITLE DESCRIPTION

SP1 SP2

Solvent Cleaning Hand Tool Cleaning

SP3

Power Tool Cleaning

SP5 / NACE No. 1

Metal Blast Cleaning

SP6 / NACE No. 3

Commercial Blast Cleaning Brush Off Blast Cleaning Pickling

SP7 / NACE No. 4

SP8

SP10 / NACE No. 2

Near White Blast Cleaning Power Tool Cleaning to Bare Metal

SP11

Removal of oil, grease, dirt, soil, salts, and contaminants by cleaning with solvent, vapor, alkali, emulsion, or steam. Removal of all loose rust, loose mill scale, and loose paint to degree specified, by hand chipping, scraping, sanding and wire brushing. Removal of all loose rust, loose mill scale, and loose paint to degree specified, by power tool chipping, de-scaling, sanding, wire brushing, and grinding. Removal of all visible rust, mill scale, paint, and foreign matter by blast cleaning by wheel or nozzle (dry or wet) using sand, grit, or shot. (For very corrosive atmospheres where high cost of cleaning is warranted) Blast cleaning until at least two thirds of the surface area is free of all visible residues. (For conditions where thoroughly cleaned surface is required) Blast cleaning of all except tightly adhering residues of mill scale, rust, and coatings, exposing numerous evenly distributed flecks of underlying metal. Complete removal of rust and mill scale by acid pickling, duplex pickling, or electrolytic pickling. Blast cleaning to nearly White Metal cleanliness, until at least 95% of the surface area is free of all visible residues. (For high humidity, chemical atmosphere, marine, or other corrosive environments) Complete removal of all rust, scale, and paint by power tools, with resultant surface profile.

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