Q. Which SSPC standard is for industrial blast cleaning?
NACE No.
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.
Q. Why is abrasive blasting important to Ohs?
Abrasive blasting is a proven and extremely effective method for removing a wide range of substances and cleaning surfaces. Abrasive cleaning is the function of blasting a high-speed abrasive material against a surface for a high-impact clean that can’t be achieved through standard methods.
Q. Which test can be performed by an inspector in the field to verify abrasive cleanliness per SSPC AB 1?
The two tests that are used to verify abrasive cleanliness are oil content and water soluble salt content. The contractor’s quality control inspector typically performs these tests.
Q. What is sp2 cleaning?
This standard covers the removal of loose mill scale, loose rust, loose paint, and other loose detrimental foreign matter from surfaces with the use of non-powered hand tools.
Q. What is abrasive blasting used for?
Abrasive blasting uses various materials to strip imperfections, paint, rust, and other contaminants from a surface. It’s an important step in surface coating preparation, as it cleans a substrate and creates a surface that will hold a protective coating.
Q. What are blasting hazards?
Abrasive blasting operations can create high levels of dust and noise. Abrasive material and the surface being blasted may contain toxic materials (e.g., lead paint, silica) that are hazardous to workers. • Silica sand (crystalline) can cause silicosis, lung cancer, and breathing problems in exposed workers.
Q. What is blasting profile?
Shotblasting of steel plate, profiles, construction, and fabrications is a process to clean, descale, provide a specified surface profile and edge break as a surface preparation. This process takes place prior to a coating or paint application to maximise the adherence potential and corrosion control.
Q. What are the standards for abrasive blast cleaning?
The abrasive blast cleaning standards are composed of both direct and indirect requirements. The “direct” requirement is the degree of cleaning; for example, SSPC-SP 10 permits a maximum of 5% staining.
Q. Are there any SSPC standards for abrasive cleaning?
Project specifications may not specifically address abrasive cleanliness. However, many will invoke one of more of the SSPC abrasive blast cleaning standards (e.g., SSPC-SP 10 Near-white Metal Blast Cleaning; SSPC-SP 6 Commercial Blast Cleaning, etc.). The abrasive blast cleaning standards are composed of both direct and indirect requirements.
Q. Why is the cleanliness of an abrasive so important?
The cleanliness of the abrasive (whether new or recycled) is equally important. Oil and/or salt contamination on an abrasive may be transferred to the surface during blast cleaning operations and adversely affect long term coating performance.
Q. What are the wet and dry blast standards?
The dry blast standards require the removal of visible rust that forms on the surface after cleaning (i.e., removal of the rust back). The wet blast standards include provisions for the specifier to define the extent of flash rust that is permitted to form on the surface prior to painting.
