Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 25-09-2014, 09:34   #1
Registered User

Join Date: Jul 2010
Location: Lake Mills, WI
Boat: O'Day 39
Posts: 148
Sandable Bottom Paint

I recently refurbished an O'day 39 that was originally sold into the Caribbean charter fleet. I don't know the name of the charter company but the work they did was top notch.
One of the things they did was paint the bottom with what appears to be a coal tar epoxy. This stuff is as hard as nails and likely the reason the boat does not have a single blister. It was so tough we could use silicon carbide for a medea to remove many many layers of old bottom paint. The media opened the epoxy up a bit so I applied several coats of Interprotect. The problem is that the coal tar epoxy was applied with a significant textured finish. We thought about removing it completely but the silicon carbide had considerable difficulty cutting through it and if it did I was afraid it would eat well into the gelcoat before we would know it. And then there was the thought that one should not mess with success. It provided 30 years of blister protection.
The problem now is that I would like to smooth this texture out. I don't want to spend a month sanding and fairing. I'm hoping to hit it each spring with a sander to get the hi spots and then apply another coat of bottom paint. The boat is on lake superior right now and will be in fresh water for a few more years. Does anyone have a recommendation?
tsl is offline   Reply With Quote
Old 25-09-2014, 09:45   #2
Registered User

Join Date: Aug 2013
Boat: 2000 Searay 380 Sundancer
Posts: 359
Re: Sandable bottom paint

The Blue Water Marine Coal Tar Epoxy Data Sheet does not list information on removal or on smoothing.

If complete removal is unacceptable, then maybe the problem can be fixed by removing the bottom paint, followed by an additional application of coal tar, applied smoothly over the existing barrier coat.
2000 SeaRay 380 Sundancer Mercruiser
454 MAG MPI Horizon 380hp / Westerbeke 7.0KW BCGB
many cool mods
wingless is offline   Reply With Quote
Old 25-09-2014, 19:31   #3
Registered User
zboss's Avatar

Join Date: Sep 2011
Location: On a boat
Boat: Cabo Rico 38
Posts: 3,025
Re: Sandable bottom paint

Soda blasting can be adjusted to remove just the paint. Speak to a pro and see if this is possible with your boat.
zboss is online now   Reply With Quote

bottom paint, paint

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
To Bottom Paint, or Not to Bottom Paint (or Just a Touch-Up) OrangeCrush Monohull Sailboats 40 28-03-2016 04:56
Superhydrophobic Paint Video - Bottom Paint Application ? sdowney717 Construction, Maintenance & Refit 11 15-03-2014 09:20
Bottom Paint For Textured Bottom chas5131 Construction, Maintenance & Refit 2 29-08-2012 00:07
Bottom Paint and Prop Paint DougM Construction, Maintenance & Refit 4 30-01-2012 17:13

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:55.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.