All existing antifouling paint should be removed back to the Gel coat. Any and all repairs to the hull ( Blisters Grinding, Filling) should be preformed now, waiting at least 24hrs after such repairs before applying dolphincoatM300…
Epoxies used in repair or barrier coat need to gas off before applying M300
After removal of paint back to the gel coat prep the hull by sanding with 80 grit abrasive paper. A random orbital sander is good for the flat even surfaces. This will give the surface a good tooth. Mask off all metal through hull fittings.
Following prep wash down the hull and allow to dry. Wiping the hull with clean cotton cloths while still slightly wet helps remove the fine dust. Do NOT wipe the surface with acetone or solvent wash after sanding as this softens the fiberglass and removes tooth. If a barrier coat is applied this will also need to be sanded with (80 grit) before applying M300.
Important M300 is a real metal coating; therefore any metal through hull fittings & propellers need to be masked off to prevent electrolysis.
Before Mixing or Applying:
As dolphincoat M300 comes in three parts, quantities are measured in percentages. An accurate scale will be needed for measuring the components correctly. A calculator is also helpful in working out percentages for smaller batches.
If Rolling: Make sure you have clean containers, half gallon pots for mixing, roller tray liners and extra roller covers for application. Ideally one of each for each time you mix. Protective gloves, clothing and glasses should be worn by anyone mixing or applying M300. Have plenty of cloths to wipe up any accidental spills. Kitty litter is also good for spills and disposing of leftover product.
If Spraying: We strongly advise this should to be performed by a professional. A full-face air-feed respirator(complying to BS2092) should be worn and the product should be applied in well ventilated conditions.