Power abrading tools also acceptably remove mill scale according to the standard. 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. A list of some solvents has been provided below. The contractor shall correct such work or replace such material as is found defective under this specification. We will be updating and growing this site with more and more of industrial inspection related articles. Petroleum solvents and Turpentine cont. The table below lists the subjects discussed relevant to solvent cleaning and appropriate Commentary Section.
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The contractor shall correct such work or replace such material as is found defective under this specification. Sspc sp1, some rust remaining at the bottom of pits is acceptable if the surface was pitted to begin with.
D specifically calls out this standard with a condition that the water pressure be below sspc sp1. The standard also contains unique procedures for use on galvanized steel including inspection for a passivation treatment and wet storage stain.
The standard lists dry abrasive blasting as the preferred method with wet blasting an option to be agreed upon between the two parties. In this case the area damaged and in need of repair by a paint containing zinc dust will receive a blast per SSPC-SP10 before the paint is applied.
The standard includes using rotary, impact, or power brushing tools to remove stratified rust, weld slag, and mill scale. Hand tool cleaning also acceptably cleans a hot-dip galvanized surface before surface profiling according to D In preparation for paint and sspc sp1 coating, both standards are mentioned by D and D in the same section.
This specification is a way to approach surface preparation, which promotes longer coating life on industrial equipment. Sspc sp1 removes oil and grease before cleaning with hand tools, and compressed air or a vacuum will remove dust after this cleaning procedure is completed.
SSPC Surface Preparation Standards | American Galvanizer’s Association
The information provided herein is not ssc as a representation or warranty on the part of the AGA. The ASTM specifications relevant to the hot-dip galvanizing industry often reference these sspc sp1 preparation standards. In case of dispute the arbitration or settlement procedure established in the procurement documents, if any, shall be followed.
Prior to performing solvent cleaning, it is best if dust is removed from the surface of interest. The specification lists several different ways in which solvent cleaner may be applied to the surface including wiping or scrubbing the surface with solvent, spraying solvent directly onto the surface, vapor degreasing, immersion, alkaline cleaners, and steam cleaning.
A surface profile of no less than one mill between peaks and valleys is required. Regardless of which solvent is ps1 caution is always advised. Remove all contaminants from the surface with a scraper sspc sp1 then apply any of the methods listed below:.
SP 1, Solvent Cleaning
Leave me a comment in the box below. Did you find this article useful? Xp1 also shall be in accord with instructions and requirements of insurance underwriters. Post solvent cleaning, it is very important to remove all remaining residue on the surface. I have read and accept the privacy sspc sp1.
Acceptable methods include brushing, blow off with clean, dry air, or vacuum cleaning. Take caution on all methods listed to remove the final contaminants. We will be updating and growing this site with more and more of industrial inspection sspc sp1 articles. D uses this standard for the preparation of a galvanized coating for powder coating. It is highly recommended that precaution be taken when selecting your solvent.
Use clean solvent and clean rags or brushes for the final wiping. However, metals with an existing profile acceptable for painting can be cleaned with waterjetting to expose the existing profile. Removing all sspc sp1 slag and stratified rust with impact tools, using non-impact methods such as scraping to remove all non-adherent materials, and feathering an adherent paint coating, are all espc tool cleaning methods accepted by this standard.
The standard then requires oil, grease, and ss;c to dp1 removed from the surface and the work inspected.
However, A uses the sspc sp1 metal blast as the surface preparation ssp for repairing a zinc coating using sprayed zinc. Standardized subjects include requirements s1 paints, standards for evaluating the qualifications of contractors, surface preparation standards, and other topics. After all oil and grease has been removed with the methods of another surface preparation standards, cleaning with a waterjet according to SSPC-SP12 will remove all lose particles and leave the finely etched surface previously described.
This is best done by using any of the accepted methods listed.