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  1. This procedure covers the minimum requirements on the surface preparation and painting / coating for the touch-up and repair of damaged external or internal surfaces of existing structures and facilities including structural steel works, process piping, pressure vessels, galvanized surfaces and equipment. PURPOSE.

  2. 18 de sept. de 2002 · Field Touch-up and Repair How should contract documents address the problem of job-site mill-scale flaking? When SSPC-SP2 (hand tool cleaning) or SSPC-SP3 (power tool cleaning) surface preparation is specified and a short-exposure-life prime coat is subsequently applied, tight mill scale generally remains on the surface prior to shop ...

  3. 20 de jul. de 2017 · This how-to video introduces the process of touch-up and repair for hot-dip galvanized steel, which is key to ensuring coating longevity and continued corrosion protection.

  4. The objective of this publication is to present a practical guide to the design of structural steel elements for buildings. The document comprises three principal Sections: general guidance,

  5. ASTM A780 contains three acceptable methods of touch-up and repair of hot-dip galvanized steel: Zinc-Based Solders. Soldering is done with zinc-based alloys in either a stick or powder form. The area being repaired needs to be preheated to approximately 600 F (315 C).

  6. 26 de ene. de 2012 · The touch-up and repair method chosen should consider the specific use of the galvanized steel and the performance characteristics of each of the three methods. Corrosion protection should always be the primary consideration, but certain uses and conditions may warrant selection on the basis of other performance characteristics.

  7. To simplify the application parameters for a system based on zinc-rich primers on new steel bridges, a series of charts has been developed. These charts provide a convenient summary listing the detailed requirements for surface preparation, environmental conditions, coating application, curing, verification