Bottom Job question(s) - Page 2 - 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? 
  #11  
Old 03-14-2003
Junior Member
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
rookie00 is on a distinguished road
Bottom Job question(s)

Wow - Everyone, thank you so much for all the great information. I am much better prepared for my first bottom job then I was yesterday. It will probably take me a while longer on, this, my first job, since I will be using a hand electric sander, but I don''t mind a little sweat equity in my boat, I am sure by next year I will be better prepared. I did check with the Marina and yes, they do require a ''Dustless'' sander. So thanks again. This forum has been a wealth of information. I don''t know what we did before the internet... thanks again for the all the valuable information. We sail a P30 (sv Agenda) if you ever since, please say hello.

Rookie
Reply With Quote Share with Facebook
  #12  
Old 03-14-2003
Senior Member
 
Join Date: Aug 2002
Location: NC
Posts: 316
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
kokopelli9 is an unknown quantity at this point
Bottom Job question(s)

Hey, Mitch...I''ve been taking notes on your step by step info also...Koko is still not done...weather has not cooperated. I''m all ready though as soon as I get a nice warm, dry day.
So how goes it with you? Got a splash date yet?

Kokopuff
Reply With Quote Share with Facebook
  #13  
Old 03-14-2003
SailorMitch's Avatar
Senior Moment
 
Join Date: Nov 2005
Location: MD
Posts: 1,931
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
SailorMitch will become famous soon enough
Bottom Job question(s)

Hey Kokopuff........doing fine. All this bottom chit chat is getting me psyched to start on Minstrel. No splash date yet either, but probably a month away. Glad to know you''re still kicking in Tar Heel land.

And Rookie, if you have a P-30 you need to join the Pearson Sailing Assoc. of the Chesapeake Bay. Check it out at www.cbpsa.org. But watch out for the new commodore.
Reply With Quote Share with Facebook
  #14  
Old 03-14-2003
RichH's Avatar
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,882
Thanks: 9
Thanked 77 Times in 70 Posts
Rep Power: 15
RichH will become famous soon enough
Bottom Job question(s)

I have a method that results in a good fair bottom that doesnt require all that much finish sanding and works with VC17 or ablatives:
I sand with 180 grit to flatten and fair the old coats with the object to "square off the tops of the ''prominences''. Then with a very fine knap roller apply a coat of new while using a long polyethylene blade with a tapered edge to immediately fair the surface - just like one would do when hand-laying up a surface top-coat of epoxy or polyester. I do this in 3ft X 3 ft. non-adjacent sections and go back and complete the fairing when the paint first starts to cure (not just set). With a little practice (and clean paint and blade) you can almost imitate a sprayed on finish. Since the paint is not dry to a ''hard cure'' you then can keep on applying more thickness without resanding. Obviously for a racing bottom you will need to finish with fine sand paper (or paper wad "burnish" with Teflon filled VC finishes).

The advice from JeffH about keeping the thickness build up to minimum is a very good one. Use a different color base coat and only consider to apply when the base ablative coat starts to show through the successive (different color) coats.
Reply With Quote Share with Facebook
  #15  
Old 03-14-2003
Junior Member
 
Join Date: Jan 2003
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ginotworivers is on a distinguished road
Bottom Job question(s)

JEFF:
We had a discussion about bottom paints on this board or CWBB last year and I told you I used the least expensive of the West Marine Bottom paints, something like $39 per 1/2 gallon. On Teacher''s Pets bottom, doing both the dagger board and the center board, I roll on just about a pint less than 3/4 of a gallon. Because it is so easy to clean our boats bottom I repaint every other year. Right now we are having some rather low tides in the Braden river and last week I had two inches of water on the keel. Took one hour to really get a nice clean bottom without the need to repaint.
Respectfully Gene S/V Teacher''s Pet III and
21'' Windjammer First Born.
Reply With Quote Share with Facebook
  #16  
Old 03-14-2003
Jeff_H's Avatar
Moderator
 
Join Date: Feb 2000
Location: Annapolis, Md
Posts: 6,595
Thanks: 5
Thanked 96 Times in 72 Posts
Rep Power: 10
Jeff_H has a spectacular aura about Jeff_H has a spectacular aura about Jeff_H has a spectacular aura about
Bottom Job question(s)

I think that you got just about all of the information that you could possibly use. There are a few points that I disagree with. I strongly disagree with the idea of not washing down the bottom with a solvent. In our climate, especially in Herrington Harbor where you are under the landing path for BWI, the boats end up with an oily residue which the heat of sanding moves around the surface. I do not recommend using acetone as it is tends to pull these contaminants into the pores of the paint. I do suggest using alcohol and frequent rag or paper towel changes to wash the contaminants off of the surface. Leaving this oily residue on the surface will increase the likelihood of bottom paint developing paint sickness.

I also have mixed emotions about using bottom paint after a year. Even bottom paint that has not been opened has less than a one year shelf life so I can''t imagine using year old paint that has exposure to the air. I do like the idea of putting plastic into the paint to keep it fresh and have used that technique with varnish as well.

To answer your question, I work in Annapolis and although my house has an Annpolis address it is really just north of the Severn on Mill Creek. My boat lives behind my house on Mill Creek.

Jeff
Reply With Quote Share with Facebook
  #17  
Old 03-15-2003
Senior Member
 
Join Date: May 2002
Posts: 275
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
windship has a little shameless behaviour in the past
Bottom Job question(s)

rookie00,
You don''t have to sand before painting over an ixisting coat of ablative paint if the power wash was done right. This is not true! I have never done this on my boat or on any of the other many many boats either, and I have never had any problem at all. NONE! However...if you wish to sand off paint that is perfectly good and you have paid $150-$200 a gallon for...go ahead.

Dennis
Reply With Quote Share with Facebook
  #18  
Old 03-17-2003
Junior Member
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
rookie00 is on a distinguished road
Bottom Job question(s)

All - Thank you for the all input. Over the weekend I completed my bottom job. This is what I did. I rented a ''Dustless Sander'' from the marina at a cost of $15/hr. The last bottom paint was three coats (base different color) with two top coats. The base color was beginning to show in some areas. I used 80 and 100 grit sand paper (mostly 100 and 80 near the waterline to get all the scum off). I sanded the old paint, which came off very easily, to give the new paint something to bond to. I rubbed down the surface with lots of clean rags and de-natured alcohol. I applied the first coat on Saturday afternoon and the second coat yesterday. I only needed the sander for about 1.5 hours (I have a Pearson 30) Everything went very smooth thanks to all the feedback I received from everyone here. I applied two coats using 1 gallon of West Marine CPP Ablative paint. They told me this was the same as the Micron paint. My primary use of the boat is for cruising, though we tend to be rather competative when we have another boat in sight (and I don''t know why?). Next weekend we will wash and wax. Thanks again to everyone who provided input.

Rookie
Reply With Quote Share with Facebook
  #19  
Old 03-18-2003
Junior Member
 
Join Date: Jun 2002
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
allcystemsgo is on a distinguished road
Bottom Job question(s)

Hello Rookie, it sounds like you got it done right. Can I ask you how much paint you needed to put on a coat of bottom paint and how much alcohol it took to clean the bottom after sanding?????
Reply With Quote Share with Facebook
  #20  
Old 03-19-2003
Junior Member
 
Join Date: Sep 2002
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
rookie00 is on a distinguished road
Bottom Job question(s)

Allcystemsgo,

I hope I go it right, it looks great. I purchased two gallons of West Marine CPP ablative paint. West Marine told me that their brand is the same as the Micron paint, so I decided to give it a try. The Micron paint was used previously. I have a Pearson 30 and I used 1 gallon for two coats of paint. I have tiny bit left, which I am hoping will cover the jack stand spots. The first coat seemed to take more than the second coat. I thought I was going to have to use some of the second gallon, but it worked out perfectly.

I purchased a gallon of de-natured alcohol from Lowe''s and I used quite a bit, I don''t didn''t notice how much I used, sorry.
Reply With Quote Share with Facebook
Reply


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
bottom fairing and paint sailorbri Racing 4 09-22-2006 10:30 PM
Looking to buy a boat in the DC area and have some questions FRRizzo111 Boat Review and Purchase Forum 10 06-02-2004 06:20 PM
Marshall Cat bottom refinishing zperson Gear & Maintenance 1 01-14-2004 03:46 AM
Dolphinite Go Fast bottom paint chris1514 Racing 1 06-22-2003 09:00 AM
Gelcoat vs. painted bottom czibailo Racing 2 01-31-2003 02:55 PM


All times are GMT -4. The time now is 03:25 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.