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51318-11245-Abrasive Blasted Surface Preparation – Does the Pipeline Coating Industry Really Understand it?

Three recent international pipeline projects illustrate that the typical surface profile height and abrasive blast cleaning requirements in today’s coating standards and specifications have not been sufficient to define the adequate level of the abrasive blasting.

Product Number: 51318-11245-SG
Author: Shiwei William Guan
Publication Date: 2018
$0.00
$20.00
$20.00

The author uses three recent international pipeline projects as examples, to illustrate that the typical surface profile height and abrasive blast cleaning requirements in today’s coating standards and specifications have not been sufficient to define the adequate level of the abrasive blasting in order to provide wetting and adhesion of the pipe coatings to the pipe substrate, partially causing the pipeline coating disbondment. Adhesion mechanisms, limitations of the current standards of defining surface profile, and recommendations for future pipeline coating projects are discussed.

Key words: Abrasive blasting, surface preparation, pipeline coating, surface profile, test method

The author uses three recent international pipeline projects as examples, to illustrate that the typical surface profile height and abrasive blast cleaning requirements in today’s coating standards and specifications have not been sufficient to define the adequate level of the abrasive blasting in order to provide wetting and adhesion of the pipe coatings to the pipe substrate, partially causing the pipeline coating disbondment. Adhesion mechanisms, limitations of the current standards of defining surface profile, and recommendations for future pipeline coating projects are discussed.

Key words: Abrasive blasting, surface preparation, pipeline coating, surface profile, test method

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