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February 16 - February 23, 2017

How do you prepare flame-cut edges for application of thermal spray metallic coatings? The problem is that these edges are often harder than the abrasive, so a very low profile is produced, resulting in lower-than-specified adhesion of the thermal spray to the steel.

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Selected Answers

From Luis Bonifacio of Martifer Metallic Constructions on April 12, 2017:
You have to remove the hardened surface edge with a grinder or a belt-driven abrasive before abrasive blasting

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Tagged categories: Galvanized/thermal spray coatings; Surface preparation; Surface profile


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