Association Forum - Keel Paint

Assn Members Area · Join

Home.

Association Forum

Ships Store

Cruising

Racing

Technical Tips

Photo Gallery - New

Boat Search - Updated

Manuals & Brochures

Swap Meet

Links

Officer Flag Line & Staff

Bylaws & Constitution

Members Area

Join the Association

Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.

Association Forum

Username:	Password:
Save Password
Forgot your Password?

All Forums

Catalina/Capri 25/250 Sailor's Forums

Catalina 25 Specific Forum

Keel Paint

New Topic

Topic Locked

Printer Friendly

Author

Topic

Corey
Deckhand

Member Avatar

Canada
24 Posts

Initially Posted - 03/10/2004 : 23:06:03

Hello,

I am having the bottom of my boat soda blasted next week-end in order to change from "bottom kote" to VC Tar & VC 17. I need to protect the keel until the weather warms up more and I can complete the bottom job..What do you recommend? Just using the Tar on the keel and leave it at that for now until it warms up

Regards,

Between The Sheets
1982 TR/FK

Edited by - on

Frank Hopper
Past Commodore

Members Avatar

Pitcairn Island
6776 Posts

Response Posted - 03/11/2004 : 07:11:30

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Corey
 Hello,

I am having the bottom of my boat soda blasted next week-end in order to change from "bottom kote" to VC Tar & VC 17.
Regards,
<hr height="1" noshade id="quote"></blockquote id="quote">

Have you looked here to see my soda blast job?

http://homepage.mac.com/fhopper/PhotoAlbum33.html

http://homepage.mac.com/fhopper/iMovieTheater34.html

Make sure you wash the entire boat after the job. It is recommended that the topsides and deck of the boat be taped off and covered with a huge sheet of plastic; a good idea. I have no input on your keel, I had to seal my swinger the same day but it is cast iron.

Edited by - on

Steve Milby
Past Commodore

Members Avatar

USA
5906 Posts

Response Posted - 03/11/2004 : 09:12:15

I've never resurfaced my whole keel, but whenever I had to do a repair that went down to bare cast iron, I always cleaned the iron, then immediately applied 2-3 coats of the primer paint that converts rust to sealer, then immediately applied 2-3 coats of coal tar epoxy (like VC Tar), then applied fairing compound, then applied barrier coat, and then bottom paint.

If you put the tar on the keel now, IMHO it will seal the cast iron enough to protect it from rain and moisture in the air until better weather, when you can finish the job.

Edited by - on

TRogers
1st Mate

Members Avatar

USA
90 Posts

Response Posted - 03/11/2004 : 20:57:39

OK, for the rookie in the crowd. What exactly is soda blasting? I assume it strips the old paint? and possibly does something else as well?

Edited by - on

dlucier
Master Marine Consultant

Members Avatar

Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/11/2004 : 22:09:04

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by TRogers
 ...What exactly is soda blasting? I assume it strips the old paint?...<hr height="1" noshade id="quote"></blockquote id="quote">

Soda blasting is similar to sand blasting in that it will remove the old antifouling paint without damaging the underlying surface.

Edited by - on

joegeiger
1st Mate

Members Avatar

USA
63 Posts

Response Posted - 03/16/2004 : 09:53:33

I just finished scraping and sanding the bottom of my '86 FK which I purchased in December '03 and decided next year to have all the old bottom paint removed. The PO just kept adding new paint so the bottom is not very smooth. It has lots of spots where the paint was chipped off and a new coat put over it without sanding it first. How much will this cost me (roughly). Just curious...gotta start saving :)

Edited by - on

dlucier
Master Marine Consultant

Members Avatar

Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/16/2004 : 10:39:35

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by joegeiger
 I just finished scraping and sanding the bottom of my '86 FK which I purchased in December '03 and decided next year to have all the old bottom paint removed. The PO just kept adding new paint so the bottom is not very smooth. It has lots of spots where the paint was chipped off and a new coat put over it without sanding it first. How much will this cost me (roughly). Just curious...gotta start saving :)
<hr height="1" noshade id="quote"></blockquote id="quote">

Joe,

Did you sand and scrape your hull down to the gelcoat or just down to smooth paint/epoxy barrier?

Edited by - on

joegeiger
1st Mate

Members Avatar

USA
63 Posts

Response Posted - 03/16/2004 : 14:17:08

There were spots where the bottom paint/epoxy barrier chipped off completely. I sanded the edges of those spots so that it transitioned smoothly to the gelcoat(If that's what it is). Am I going to need to paint those spots with epoxy barrier before bottom painting it? Can I just paint over them and then have the bottom soda blasted before next season?

Edited by - on

dlucier
Master Marine Consultant

Members Avatar

Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/16/2004 : 23:53:18

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by joegeiger
 There were spots where the bottom paint/epoxy barrier chipped off completely. I sanded the edges of those spots so that it transitioned smoothly to the gelcoat(If that's what it is). Am I going to need to paint those spots with epoxy barrier before bottom painting it? Can I just paint over them and then have the bottom soda blasted before next season?<hr height="1" noshade id="quote"></blockquote id="quote">

Well, personally, I've never heard of epoxy barrier coats peeling off so I'm guessing that your boat may just have antifouling paint on it. If this is the case, then I don't see why you couldn't do as you suggest and simply prep the bottom and overcoat it with antifouling for this season.

Since some paints can't be overcoated with different paints, you may want to find out what is currently on the hull. If you don't know what kind of paint it is, you may want to ask the previous owner. When I sell a boat, I give an old antifouling paint can to the new owner so they know what is on the hull.

Edited by - on

joegeiger
1st Mate

Members Avatar

USA
63 Posts

Response Posted - 03/17/2004 : 15:41:25

Thanks Don,

I'll be painting the bottom next week. I can't wait to get this thing in the water. :)

Edited by - on

joegeiger
1st Mate

Members Avatar

USA
63 Posts

Response Posted - 03/18/2004 : 10:16:42

FYI... There is a great article in the April '04 issue of Sail magazine regarding removal of bottom paint. They explain the pros and cons of chemical strippers, sand/soda blasting and having it done professionally.

Edited by - on

Topic

New Topic

Topic Locked

Printer Friendly

Jump To:

Association Forum

Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.