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October 6 - October 10, 2014

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 OM PRAKASH JAT of TECH INTERNATIONAL SHARJAH HAMRIAH UAE. on November 20, 2014:
UHP water jetting is the best option to remove a silicone coating from a ship's hull to replace it with an epoxy mastic. We can vary the flow rate and pressure as required.

From Lydia Frenzel of Advisory Council on October 18, 2014:
Look at pressurized water, from pressure washing up to Ultra-High Pressure Waterjetting (UHP WJ). You can vary the flow rate, the pressure, the stand-off distance, and the lateral movement to remove the silicone. And you can collect the material with a vacuum. If you clean to bare metal, the profile will be what is under the silicone.

From Per Gabrielsson of Free Lance Consultations and Inspections on October 17, 2014:
 If you are using sponge abrasive for blasting, you should not recycle it, because you obviously are left with residues of silicone in the polyurethane foam. If using recycled abrasive, you are pushing silicone into the substrate.

From Damian Schimminger of Sponge-Jet on October 15, 2014:
I would suggest using the AB-4 method for surface preparation. This will allow you to achieve an SSPC-SP 10 and any desired profile.

From OM PRAKASH JAT of TECH INTERNATIONAL SHARJAH HAMRIAH UAE. on October 6, 2014:
In addition to grinding, we can use UHP waterjetting to remove the old coating.

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Tagged categories: Asia Pacific; EMEA (Europe, Middle East and Africa); Epoxy; Grinders; Latin America; North America; Silicone; Surface Preparation; Surface preparation


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