Deck Drain Frustrations!

[TunaMeltdown]

I used the west systems #404 filler. That is what they (people at West Marine) recomended.

[Seacraft84]

I second the last two post. Painters tape and grind the hole down to the glass. Removing the gelcoat. Cut small squares or cicles, however you grind it out, and make them bigger untils it over laps the gelcoat and then sand smooth. Usually about 4-6 layers depending how deep you grind it out.

[kitebuz]

404 is good filler to use w/ what you're doing, & what SC84 describes is on the money.

Here is a your almost exact scenario explained on West's how-to site:

http://www.westsystem.com/ss/repairi...in-fiberglass/

Scroll down to the "Zone 3 - high risk" section. Instead of making a puck in a paper cup, you kinda just made it in place, which will work fine. Just need to grind it back some now to give yourself a clean surface for a few layers of glass.

Have you checked out how Strick (& others) mounted his seacock to a glassed over plywoood plate?