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July 31 - August 6, 2016
How do you best remove lubricants and other contaminants from field-bolted connections prior to painting?
Selected Answers
From
trevor neale of TF Warren Group on
August 8, 2016:
Since the lubricant can only be removed after construction, the practical solution is to use a suitable solvent or emulsifier. Also, consider that lubricants may contain silicones, and in the case of galvanized fastenings, a further treatment with a suitable bonding coating or primer may be required. In the case of new structures, I would suggest that trials are conducted to establish the best practice prior to commencement or bid stage.
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