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January 26 - February 13, 2017

When SSPC-SP3 (Power Tool Cleaning) is specified, how should one decide when to apply the tool to the entire surface and when to use it just where the coating appears defective or rusting?

Selected Answers

From Jose Avendano of CoatProtec, LLC on February 5, 2017:
Strictly speaking, if it is specified that a surface must be cleaned according to SSPC-SP 3, the power tool must be applied over the entire surface.

From Priya Samaroo of tile warehouse on February 2, 2017:
Power tool cleaning is used to take off loose rust. On the other hand, once the other areas are solid and intact, those areas will need to be sanded to receive a surface profile suitable to the top coat.

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Tagged categories: Certifications and standards; Power tool cleaning; SSPC; SSPC-SP 3; Surface Preparation; Surface preparation

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