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Coater's Corner
Item Details:
Publication Date: 04/2013
Pages: 4
PDF Format
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Abrasive blasting – not your typical pretreatment

The abrasive blasting process provides one of the best surfaces to apply coating to, and when done correctly, will result in a long-lasting corrosion resistant finish. In this article, I will provide a basic understanding of the blasting process, provide test data that illustrates the effectiveness of abrasive blasting when used as the pretreatment component of the coating system, and address special considerations when using abrasive blasting.

If you have ever been involved in a conversation about pretreatment for powder coating, you have invariably heard words such as stages, immersion, bath, chemistry, pH, phosphate, water-break-free, and maybe even flocculate. These are all words that speak to chemical pretreatment. However, I would suggest that abrasive blasting and the terms used to convey the varying degrees of surface cleanliness are also worthy of understanding and use in our work as custom coaters.

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