TAILIEUCHUNG - TÀI LIỆU HƯỚNG DẪN XỮ LÝ BỀ MẶT CHO NGÀNH TẦU BIỂN

Proper surface preparation is essential for the success of any marine coating scheme. The importance of removing oil, grease, old coatings and surface contaminants (such as millscale and rust on steel, and zinc salts on zinc containing primers or galvanised surfaces) cannot be over emphasised. | .International. Marine Coatings Marine Paint Guide Updated 12 10 04 2. Surface Preparation INTRODUCTION Proper surface preparation is essential for the success of any marine coating scheme. The importance of removing oil grease old coatings and surface contaminants such as millscale and rust on steel and zinc salts on zinc containing primers or galvanised surfaces cannot be over emphasised. The performance of any paint coating is directly dependent upon the correct and thorough preparation of the surface prior to coating. The most expensive and technologically advanced coating system will fail if the surface preparation is incorrect or incomplete. STEEL Some of the various methods of surface preparation of steel are briefly described below. For more explicit details and recommendations please refer to full specifications such as 1. International Standard ISO 8504-1 2000 which is in three parts ISO 8504-1 2000 Preparation of steel substrates before application of paints and related products - Surface preparation methods - Part 1 General principles. ISO 8504-2 2000 Preparation of steel substrates before application of paints and related products - Surface preparation methods - Part 2 Abrasive blast-cleaning. ISO 8504-3 1993 Preparation of steel substrates before application of paints and related products - Surface preparation methods - Part 3 Hand- and power-tool cleaning. 2. The Society for Protective Coatings SSPC Pittsburgh PA USA. Full range of surface preparation standards. 3. International Standards ISO 8501-1 1988 and ISO 8501-2 1994. Preparation of steel substrate before application of paints and related products - visual assessment of surface cleanliness. 4. Shipbuilding Research Association of Japan - Standard for the Preparation of Steel Surfaces prior to Painting JSRA Standard -1984 . 5. International Marine Hydroblasting Standards. 6. International Marine Slurryblasting Standards. 7. International Marine Pictorial Abrasive Sweep Blasting Standards -for

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