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August 5 - August 9, 2019

Is grinding the only way to remove large areas of a silicone coating from a ship's hull to replace the silicone with an epoxy mastic?

Selected Answers

From George Wood of Long Painting on August 6, 2019:
Use a high pressure hydro blaster with sandy grit medium and containment.

From Erik Andreassen of CPS on August 5, 2019:
No, we fabricated 10 test panels with pipe, flat plate and I-beam for the qualification of 40 people for Thermal Aluminium Metal spray. We re-blasted the panel for the next group and it took nearly 3 hours per item. We switched to Ultra High Pressure Water Jetting and completed the removal of the TSA in 1/3 the time, so grinding is not the only solution, plus UHP is environmentally friendly.

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Tagged categories: Grinders; Power tool cleaning; Ships and vessels; Silicone; Surface preparation; Surface Preparation

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