Surface preparation standards
Coating specifications should always incorporate or reference one of the written and/or visual/photographic surface preparation standards. Such standards exist to eliminate misinterpretation, questions, disagreement, related to the quality of surface preparation desired.The two most commonly used surface preparation standards are those published by the Steel Structures Painting Council (SSPC) and the National Association of Corrosion […]
How do norms and standards for surface preparation relate to each other?
Many of the standards on surface preparation, coating and cathodic protection are also recognised and integrated or harmonized to: American Society for Testing Materials (ASTM) American National Standards Institute (ANSI) Swedish Standards Institute (SIS) Danish Standards Association Standards Association of Australia We are still in a situation that there are seperate SSPC and NACE standards. […]
5 Different methods for surface preparation
Some of the most commonly used methods are: Hand tools Power tools Abrasive blasting Centrifugal Wheel Blasting Water Blasting To achieve the different surface preparation qualities, numerous methods may be employed 1 Hand tools Hand tools Preparing surfaces using hand tools is one of the oldest methods known. It is generally used when power tools […]
Which abrasives do I need to use for blasting?
The most common parameters to be considered when choosing an abrasive are: Shape – angular or round Hardness – hard or soft Density – heavy or light Size – large or small Type of surface – new, light or heavy rust, coated, steel, aluminum, etc. Profile required – light or heavy Coating system to be […]
Is surface preparation important before coating application?
Yes, Surface preparation of the steel before external coating application is the foundation of any corrosion control program. Any compromise made in the degree of surface preparation will affect coating performance regardless of how high the technical quality of the coating is. Rule of thumb An important rule to remember is when selection both the […]
What are Common definitions for surface preparation?
solvent Cleaning SSPC-SP1 : Solvents such as water, mineral spirits, xylol, toluol etc., are used to remove solvent-soluble foreign matter from the surface of ferrous metals. Rags and solvents must be replenished frequently to avoid spreading the contaminant rather than removing it. Low-pressure (1500 – 4000 psi) high volume (3 – 5 gal/min.) water washing […]
What are the 3 objectives of surface preparation
1. Remove contaminants The first objective of surface preparation is to remove surface contaminants that will affect the performance of a coating. These contaminants can include: Oil and Grease – Prevent good coating adhesion and must be completely removed.Salts – Increase moisture penetration through the coating and accelerates the rate of corrosion.Dust and Dirt – […]
How to prepare a metallic surface before applying a coating?
A proper surface treatment is essential before you apply a coating. In many cases sand or grit blasting (abrasive blasting) is seen as the best method to prepare a metallic surface, to ensure a proper adhesion of the coating product to the surface. But did you know that most coatings fail due to improper adhesion […]