bottom paint - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 03-30-2007
banshee's Avatar
Sailor
 
Join Date: Jun 2006
Location: Niantic, CT
Posts: 162
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
banshee is on a distinguished road
bottom paint

how extensively do I need to scrape and sand the bottom of the hull - I am using the ablative antifouling paint and the hull is in pretty good shape
__________________
You never really learn to swear until you learn to drive.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 03-30-2007
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 15,342
Thanks: 88
Thanked 242 Times in 233 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
It depends on what paint you are planning to use and what paint is already there. If the paints are the same type and are known to be compatable, then a thorough wash (get rid of all slime) and a quick scuff sand should be fine.

If you don't know for sure what's underneath, it may be best to remove all old paint. Worst case scenario is your new paint could fall off after basically dissolving the old.

If you have several seasons of accumualtion you may want to get rid of it to avoid having too much paint there.

With ablatives it's a neat idea to have the first coat in one colour, and subsequent coats in a different color. That way when you are wearing thin, the original coat is exposed before you get through all the effective paint, and you know it's time to redo.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 03-30-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
If you don't know what kind of paint is on the bottom... definitely sand it all off...just to be safe.

Otherwise, what Faster said is pretty much spot on.
__________________
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.

Last edited by sailingdog; 03-30-2007 at 11:56 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 04-02-2007
banshee's Avatar
Sailor
 
Join Date: Jun 2006
Location: Niantic, CT
Posts: 162
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
banshee is on a distinguished road
it is definately ablative - i put a coat of ablative over it and i am all set - one question - when i put the new paint on - when I loaded up the roller (too heavy I think) when applying it, the old paint flaked off - this was only in a few spots - i think with too much paint on the roller the moisture in the paint loosened the old paint - it was adequately sanded - just that the ablative nature of the old coat did what it was supposed to - flake off. in the end it just made for a rougher than ideal paint job - I may sand down the new paint and apply another coat in those spots. comments?
__________________
You never really learn to swear until you learn to drive.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 04-02-2007
Freesail99's Avatar
Senior Member
 
Join Date: Feb 2006
Location: New Jersey
Posts: 4,507
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Freesail99 will become famous soon enough
Send a message via Yahoo to Freesail99
Last year while sanding off the paint on my bottom, I got an infection when some of the copper paint fell into a small wound on my leg. It ended up being a 5 day hospital stay fighting that infection. Wear a paper suit, gloves and a respirator.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 04-02-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Yes, you definitely want to wear the bunny suit, gloves, goggles and a dust mask or respirator.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 04-02-2007
banshee's Avatar
Sailor
 
Join Date: Jun 2006
Location: Niantic, CT
Posts: 162
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
banshee is on a distinguished road
any comments on the flaking problem/situation?
__________________
You never really learn to swear until you learn to drive.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 04-02-2007
Freesail99's Avatar
Senior Member
 
Join Date: Feb 2006
Location: New Jersey
Posts: 4,507
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Freesail99 will become famous soon enough
Send a message via Yahoo to Freesail99
If your bottom is flaking, the paint must come off.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 04-02-2007
Bill Mc's Avatar
Coastal Cruiser
 
Join Date: Apr 2006
Location: Hamlet, North Carolina
Posts: 147
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Bill Mc is on a distinguished road


This is the Tumbleweed with her fine new bottom. If the paint is flaking you'll have to sand. Remember that this is a biocide so wear a respirator and protective clothing.

Fair winds,

Bill

Last edited by Bill Mc; 04-02-2007 at 04:14 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 04-02-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
If the paint is flaking, and you sanded it prior to painting, it usually means that someone along the way before you did a bad prep job, or that there are just too many layers of paint on the bottom. Paint only sticks to what ever is just beneath it.... and if you get enough layers, the inner layers won't be able to support the outer ones...and will flake off.

Sanding the hull down until you get to the gelcoat is one way to insure that whatever you apply will stay stuck. But if you go down to the gelcoat, you'll probably want to barrier coat or prime the bottom before continuing.
__________________
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.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

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:

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

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Bottom Paint Blues Don Casey Gear and Maintenance Articles 0 06-22-2003 09:00 PM
Sick Bottom Paint? kmeeks Gear & Maintenance 4 05-16-2003 03:20 PM
How to Paint Your Own Deck Don Casey Gear and Maintenance Articles 0 02-04-2002 08:00 PM
Bottom Paint Compatibility Dan Dickison Gear and Maintenance Articles 0 01-24-2001 08:00 PM
Paint the Bottom Yourself Tom Wood Gear and Maintenance Articles 0 03-09-1999 08:00 PM


All times are GMT -4. The time now is 07:41 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.