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 Post subject: Barnacles ring removal
PostPosted: Thu Apr 20, 2017 7:54 pm 
Site Rank - Deck Hand

Joined: Thu Apr 20, 2017 7:40 pm
Posts: 1
Hi all, I recently bought a Hobie 16 that had been in salt water for a while. The sellers had scraped the barnacles off but those "rings" are still left on the hull. I thought of using a small hand sander with 400 grit sandpaper. Does anyone have any other ideas? Thanks in advance.

PostPosted: Fri Apr 21, 2017 9:24 am 
Site Rank - Admiral

Joined: Wed Nov 02, 2016 4:35 am
Posts: 272
Location: Opelika/Lake Martin, Alabama
Hobie Cats are not meant to be moored in water like that. Anyway, try wet sanding with the 400 grit and then wet sand with 1000 grit. Do not dry sand anything, always wet sand. Probably going to take some patience, lots of tedious sanding. I would also check for blistering where the hulls were in water. Hope this helps.

1984 H16 Yellow Nationals Redline, "Yellow Fever"
Lake Martin, 'Bama.

PostPosted: Sat Apr 22, 2017 1:13 am 
Site Rank - Captain

Joined: Mon Sep 15, 2014 12:34 pm
Posts: 136
Location: Hartland, WI
The rings are probably gelcoat blisters, if they are raised above the surface that's what they are. Gelcoat is porous, water makes it's way in between the gelcoat and resin. It creates an acid which softens the gelcoat and blisters it.

83 yellow/ white decks Hobie 14 Corando turbo
82 yellow hulls Hobie 16 Cat Fever
84 yellow hulls hobie 16 Yellow Nationals
plus a few extras that I'm restoring

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