Abrasive Selection Economics

Cost or Price?

From JPCL, May 2020

By Brad Gooden, BlastOne USA

The choice of abrasive for blast-cleaning can have a surprising impact on the total cost of a project. The natural instinct might be to decide on the abrasive based on the price per unit, but if only it were that easy. This article covers the key points to consider when choosing an abrasive, including project cost, health regulations and specifications. It also examines some of the most commonly used abrasive types, comparing their properties, safety considerations and effects on surface profile. ...

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Comment from Charles Dominion, (8/15/2020, 11:52 AM)

Great article by Brad Gooden. I too have been in the abrasives business for over 35 years and fail to understand why more contractors don't follow this basic logic. Just want to point out one error though. In the table that refers to free silica in different abrasives, and I'm sure the information is correct other than the < (less than) sign should have been used, not the > (greater than) sign. No worries mate. I'm sure most readers will understand. Thanks for the great article Charles Dominion - Ecoblast, South Africa

Comment from Patrick C Sweeney, (8/20/2020, 12:23 PM)

Very informative article. I wish more contractors would come to understand all of these unique considerations. Many contractors use the same type and size of abrasive for ALL of their projects. The most successful coating contractors understand that you need different tools in your toolbox. When a contractor is having production/quality issues, we often suggest that other types of abrasives be utilized. Education is powerful. It would not be unusual for a blaster to lift off his hood after testing a different abrasive to state “if we’d had used this abrasive from the start – we’d be done with the project by now!”

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