How to Apply Bottom Paint Over Existing Bottom Paint

Bottom Painting is not very technical, but you must have a clean surface to insure good adhesion.

Refer to the Sea Hawk Compatibility Chart to determine if your existing coating is compatible with Sea Hawk antifoulant paint choice.To insure that your bottom paint adheres to your existing coating, it is important to have a clean prepared surface and an existing coating that is in good condition.

Known Compatibility of Existing Bottom Paint:
Power wash (pressure wash) to remove any loose paint,dirt, grease, or any other surface contaminants.
Scuff sand with 80 grit sandpaper, or scuff with a 3M Scotch-Brite® 7447 pad scrubbing thoroughly. Remove all residue and let dry.
Apply minimum of two coats of Sea Hawk antifoulant. Allow 3 to 6 hours between coats and a minimum overnight dry. See the specific Technical Data Sheet for antifoulant being used. Some antifoulants may require more than 2 coats.

Unknown Compatibility* of Existing Antifoulant:
Power wash (pressure wash) to remove any loose paint,dirt, grease, or any other surface contaminants.
Scuff sand with 80 grit sandpaper, or scuff with a 3M Scotch-Brite® 7447 pad scrubbing thoroughly. Remove all residue and let dry.
Apply 1 coat of 1277 Barrier Coat Primer, sHAWKocon or 1283 Island Primer (see respective technical data sheet)
Apply minimum of two coats of Sea Hawk antifoulant. Allow 3 to 6 hours between coats and a minimum overnight dry.See the specific Technical Data Sheet for antifoulant being used. Some antifoulants may require more than 2 coats.

Poor Condition of Existing Antifoulant:
If previous coating is cracking, flaking or peeling then strip antifoulant with Sea Hawk 1280 Marine Paint Stripper, or by sanding or commercial blast. Refer to Bare Fiberglass Application Guidelines for new antifoulant application.

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