What is SSPC SP11?
SSPC-SP11 Power-Tool Cleaning to Bare Metal. This surface preparation standard is similar to that some less aggressive blast cleans. The standard requires the surface to be free from all visible oil, grease, dirt, dust, rust, coating, oxides, mill scale, corrosion products, and other foreign matter when viewed without magnification.
What is SSPC SP1 solvent cleaning?
SSPC-SP1 Solvent Cleaning The method of solvent cleaning is intended to remove all visible oil, grease, soil, drawing and cutting compounds, and all other soluble contaminants from steel surfaces. The specification calls for the removal of dust before solvent cleaning by the use of a stiff bristle brush.
What are the SSPC standards?
What are these and which ones are important to the industry? The Society for Protective Coatings (SSPC) publishes and maintains many standards relevant to the coating industry. Standardized subjects include requirements for paints, standards for evaluating the qualifications of contractors, surface preparation standards, and other topics.
What is the difference between SSPC-sp 5 and SSPP-SP 10?
In SSPC- SP 10, the 5% staining in each 9 SQ inch is allowed, and that is a big difference between SSPC –SP 10 and SSPC –SP 5. When is SSPC-SP 5 White Metal Blast Cleaning (NACE No. 1) used?
What does SSPC-SP stand for?
SSPC: The Society for Protective Coatings.
What SSPC 6?
3) SSPC-SP 6 Commercial Blast Cleaning (NACE No. 3) is a standard used for blast cleaning put forth by the Society for Protective Coatings (SSPC) and NACE International Standard.
What is SSPC SP2?
Oxide. Coating. SSPC-SP2- Hand Tool Cleaning. Hand tool cleaning refers to surface preparation that uses non-power handheld tools to clean a steel surface. Hand tool cleaning is intended to remove all loose mill scale, rust, paint and other contaminants that may be detrimental to a coating application.
What is the definition of SSPC-SP 7?
SSPC-SP 7 Brush-off Blast Cleaning (NACE No. 4) is a standard used for brush-off blast cleaning put forth by the Society for Protective Coatings (SSPC) and NACE International Standard.
What SSPC 10?
SSPC-SP 10 near-white metal blast cleaning (NACE No. 2) is a standard used for near-white metal blast cleaning put forth by the Society for Protective Coatings (SSPC) and NACE International Standard.
What is an SP 6?
SP 6 does allow, on one-third of each square inch of surface area, for minimal streaks, discolorations, or shadows caused by mill scale oxides, stains caused by rust, or minor resides of remaining coating or paint. The remaining two-thirds of each square inch of surface area must be free of all visible residues.
What is SSPC SP12?
SSPC-SP12 / NACE 5 Surface Preparation and Cleaning of Steel and Other Hard. Materials by High- and Ultra High- Pressure Water Jetting Prior to Recoating. This standard requires water jetting at high- or ultra high-pressure to prepare a surface for recoating using pressure above 10,000 psi.
What is sp2 cleaning?
Removes all loose mill scale, loose rust, loose paint, and other loose detrimental foreign matter by hand chipping, scraping, sanding, and wire brushing. Prior to the use of hand tools, remove visible oil and/or grease by power or hand washing.
What is SA 2.5 blasting?
A. SA2.5, also known as near-white blast cleaning is a method of preparing steel surfaces which, when viewed without magnification, shall be free of all visible oil, grease, dirt, dust, mill scale, rust and paint / coatings.
What SSPC 11?
SSPC-SP11 Power-Tool Cleaning to Bare Metal The standard requires the surface to be free from all visible oil, grease, dirt, dust, rust, coating, oxides, mill scale, corrosion products, and other foreign matter when viewed without magnification.
What is the difference between SA 2.5 and SA 3?
The relationship between the standards Sa3 and 2.5 is practically identical except that a 2.5 allows for staining or traces of contamination i.e. Very thorough blast cleaning.
What is St2 surface preparation?
Preparation with hand or power tools When you prepare a steel surface by hand tools or power tools, the standards reached are classified as St2 and St3. The official descriptions are that St2 is achieved by 'thorough hand and power tool cleaning' and St3 by 'very thorough hand and power tool cleaning'.
What is SSPC SP2?
The preparation for painting and powder coating over a hot-dip galvanized coating, as well as the repair of damaged and uncoated areas, use SSPC-SP2 as a standard surface preparation procedure . The specifications for preparing hot-dip galvanized steel for paint and powder coating ASTM D6386 and D7803 respectively list hand tool cleaning as an acceptable method for smoothing the surface and removing zinc high spots of newly galvanized and partially weathered coatings. Hand tool cleaning also acceptably cleans a hot-dip galvanized surface before surface profiling according to D6386. ASTM A780 also uses SSPC-SP2 as an acceptable preparation method for repair by the use of paints containing zinc dust.
What is SSPC in hot dip?
The Society for Protective Coatings (SSPC) publishes and maintains many standards relevant to the coating industry. Standardized subjects include requirements for paints, standards for evaluating the qualifications of contractors, surface preparation standards, and other topics. The ASTM specifications relevant to the hot-dip galvanizing industry often reference these surface preparation standards. Here is a list and brief summary of the surface preparation standards used in the hot-dip galvanizing industry with a brief summary of each.
What is solvent cleaning?
The method of solvent cleaning is intended to remove all visible oil, grease, soil, drawing and cutting compounds, and all other soluble contaminants from steel surfaces. The specification calls for the removal of dust before solvent cleaning by the use of a stiff bristle brush.
What is surface preparation standard?
This surface preparation standard is similar to that some less aggressive blast cleans. The standard requires the surface to be free from all visible oil, grease, dirt, dust, rust, coating, oxides, mill scale, corrosion products, and other foreign matter when viewed without magnification.
Is SSPC-SP5 a hot dip galvanizing standard?
SSPC-SP5 is not specified often in standards for the hot-dip galvanizing industry. However, A780 uses the white metal blast as the surface preparation standard for repairing a zinc coating using sprayed zinc.
Can you clean SSPC SP11?
The power-tool cleaning method of SSPC-SP11 will provide an adequate profile for a paint system to adhere to. This fact makes power-tool cleaning an acceptable method for surface preparation of a hot-dip galvanized coating after it has been cleaned. D6386 states that painting should be performed as soon as possible after power-tool cleaning or surface grinding. A780 allows uncoated areas to be power-tool cleaned before repair with zinc rich paints in areas of less critical field exposure conditions.
What is SP 1?
SP 1 is a prerequisite to the other SSPC abrasive blasting specifications. The standards specify numerous methods for solvent cleaning. The most common method – and the least effective – is washing with soap, water and a rag.
When did SSPC and NACE merge?
In 2000, SSPC and NACE issued joint standards in anticipation of a merger between the organizations, whose memberships largely overlapped. The merger fell through, but NACE’s new order, which mapped NACE No. 1, 2, 3, 4 onto SSPC SP 5, 6, 10, 7, persisted.
What is ISO 8501?
ISO 8501 is a pictorial standard showing the appearance of different rust grades at various levels of cleanliness, although it also contains text descriptions of the cleanliness levels . ISO 8501 ranks cleanliness levels in order of increasing work required. Sa 1 Light Blast Cleaning. Sa 2 Thorough Blast Cleaning.
When was surface prep written?
In North America, the original surface prep standard was written by an architectural group in the 1960s for steel workers in Pittsburgh. The Society for Steel Painting Structures formed around the standards. The SSPC standards are text descriptions, not pictorial, although they are accompanied by visual guides (VIS) with photo references.
Is cleanliness compatible with rust?
Despite the differences, the grades of cleanliness are generally thought to be compatible. They reflect similar permissible levels of stains and tightly-adhered rust, mill scale and coatings, and can be summed up with a chart:
Is SP 10 near white?
The two versions were not equal: Sa 2.5 permitted stains, streaks and shadows from rust, mill scale and coatings to remain on up to 15% * of the surface, whereas SP 10 allowed for only 5%.
What is NACE/SSPC?
This NACE International (NACE)/SSPC: The Society for Protective Coatings standard represents aconsensus of those individual members who have reviewed this document, its scope, andprovisions. It is intended to aid the manufacturer, the consumer, and the general public. Itsacceptance does not in any respect preclude anyone, whether he has adopted the standard or not,from manufacturing, marketing, purchasing, or using products, processes, or procedures notaddressed in this standard. Nothing contained in this NACE/SSPC standard is to be construed asgranting any right, by implication or otherwise, to manufacture, sell, or use in connection with anymethod, apparatus, or product covered by Letters Patent, or as indemnifying or protecting anyoneagainst liability for infringement of Letters Patent. This standard represents current technology andshould in no way be interpreted as a restriction on the use of better procedures or materials.Neither is this standard intended to apply in all cases relating to the subject. Unpredictablecircumstances may negate the usefulness of this standard in specific instances. NACE and SSPCassume no responsibility for the interpretation or use of this standard by other parties and acceptresponsibility for only those official interpretations issued by NACE or SSPC in accordance withtheir governing procedures and policies which preclude the issuance of interpretations by individualvolunteers.
What is joint standard?
This joint standard covers the use of blast cleaning abrasives to achieve a defined degree of cleaningof steel surfaces prior to the application of a protective coating or lining system. This standard isintended for use by coating or lining specifiers, applicators, inspectors, or others who may beresponsible for defining a standard degree of surface cleanliness.
What is SSPC SP 6?
SSPC-SP 6 Commercial Blast Cleaning (NACE No. 3) is a standard used for blast cleaning put forth by the Society for Protective Coatings (SSPC) and NACE International Standard. Commercial blast cleaning is to be used for a defined degree of cleaning unpainted and painted steel surfaces prior to protective coating or lining systems. SSPC-SP 6/NACE No. 3 commercial blast cleaning allows for stains or shadows up to 33 percent of each unit area of surface to remain. SSPC-SP 6/NACE No. 3 removes all visible oil, grease, dust, dirt, mill scale, rust, coating, oxides, corrosion products, and any other foreign matter on the surface.
Is SSPC-SP 6/NACE No. 3 a blast cleaner?
In reference to the degree of cleanliness for SSPC-SP 6/NACE No. 3 commercial blast cleaning has a higher level of cleaning surfaces than does SSPC-SP 14/NACE No. 8 industrial blast cleaning. However, the degree of cleaning is less than that of SSPC-SP 10/NACE No. 2 near-white blast cleaning or SSPC-SP 5/NACE No. 1 white blast cleaning. Commercial blast cleaning has a lower cost for providing a degree of surface preparation when blast cleaning is necessary.
Can you blast clean with SSPC-SP 6?
There are prerequisites that need to be in place prior to applying SSPC-SP 6 commercial blast cleaning. In order to be able to apply commercial blast cleaning be sure that all visible oil, grease, and other contaminant residues are removed. This can be achieved by using standard SSPC-SP 1 Solvent cleaning or other possible methods. Some coating specification requires a chloride test being performed before power blasting even before solvent cleaning to identify the amount of deposited soluble salts.
