Getting ready to add new/first antifouling coat - SailNet Community
 
LinkBack Thread Tools
post #1 of 4 Old 10-21-2008 Thread Starter
Custom Member
 
Stiche's Avatar
 
Join Date: Oct 2006
Posts: 53
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
Question Getting ready to add new/first antifouling coat

Hi all. I've has a '69 Cal 25 for about 2 years now that I've been meaning to polish up and re-christen, unfortunately Uncle-Sam kept getting in the way by sending me to the sandbox each year!

Now I'm back and I figure the first step, should be a new bottom coat. The Cal does not appear to have an antifouling coat on it (freeboard trim and bottom coat are the same color/tone) and despite its age, the existing coat is in decent condition...no flaking, just some chalky run lines from the oxidized gel coat (that's next!)

The boat will be moored in Seattle, Washington, in fresh water Lake Washington/Lake Union all year and will be used for day sails in Lake Washington and 2-4 day sails in Puget Sound (saltwater). The most obvious nuisance is the various milfoils that have taken over the bay.

From everything I've read, I'm thinking all I will need for prep is a light sanding, 80 grit wet/dry sandpaper, removal of the dust with a cleaner and clear weather. I've had two coats of Interlux Bottomkote ACT recommended, which I'll apply with either a pump-roller or airless sprayer.

Before I good in the wrong direction, I'd appreciate a sanity check on this. This is my first time fixing up a boat some I'm in uncharted waters!

The boat will be dropped back into the water January, as my wet moorage sub-let is vacating and I don't want to double-moor the boat, so I'm racing the temperature clock. Highs drop to only 52 by the end of next week so I'm hoping to apply the two coats on Sun-Mon (26-27 Oct) so that the paint will adhere well.


thx!

-Mike
Stiche is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 4 Old 10-21-2008
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 14 Times in 12 Posts
Rep Power: 14
         
Given that the boat has no bottom paint on it... why don't you barrier coat the bottom before putting any paint on it. It would probably be a good idea, and help prevent any future osmosis problems, as well as giving you a really good "primer" surface for the anti-fouling paint. I'd highly recommend putting four or five coats of Interprotect 2000E on the bottom and then putting the anti-fouling on afterwards.

BTW, before you sand a fiberglass bottom, it is generally a really good idea to wash it well, so that the sanding doesn't drive any surface contaminants into the fiberglass/gelcoat. Washing the surface with a strong detergent like Trisodium Phosphate is probably an easy way to do it. Then sand it, and wipe it down with some Fiberglass Prep Wash 202.

If you want suggestions on how to apply the IP2KE let me know.

Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #3 of 4 Old 10-21-2008
Thanks Courtney.
 
Join Date: Sep 2006
Location: IL
Posts: 3,954
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 11
     
From the Interlux site:

We are happy to answer any product questions you may have and to give technical support on the application of our products. The Interlux technical service helpline 800-468-7589 is open Monday through Friday to assist you.

Or contact us via email at Interluxtechnicalservice@internationalpaint.com

I have found their customer/tech support to be excellent. I would recommend talking to them. They should also be able to advise you reguarding the application with the dropping temps.

hunter Legend 37 Semper Paratus
Formerly - Tartan 34C Yawl
T34C is offline  
Quote Quick Reply Share with Facebook
post #4 of 4 Old 10-22-2008
I don't discuss my member
 
Fstbttms's Avatar
 
Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 2,181
Thanks: 5
Thanked 26 Times in 26 Posts
Rep Power: 13
 
Quote:
Originally Posted by Stiche View Post
I've had two coats of Interlux Bottomkote ACT recommended, which I'll apply with either a pump-roller or airless sprayer.

Before I good in the wrong direction, I'd appreciate a sanity check on this. This is my first time fixing up a boat some I'm in uncharted waters!
Bottomkote ACT is an ablative paint. In-water cleaning of ablatives is banned in Washington. FYI.
Fstbttms is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Bottom paint over Gel Coat without Barrier Coat? WagTheDog Gear & Maintenance 17 07-15-2012 07:33 AM
Barrier Coat & Antifouling paint shipley Gear & Maintenance 7 08-09-2009 09:18 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome