Masts and Paint - SailNet Community
 1Likes
  • 1 Post By Edo Kazumichi
 
LinkBack Thread Tools
post #1 of 6 Old 03-09-2008 Thread Starter
Member
 
Join Date: Apr 2006
Posts: 57
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
Masts and Paint

The boat I just bought has a mast and spars painted an awful color that I would very much like to remove/change.

Question is, do these things really NEED paint? Why do I see both painted and unpainted masts around the marina? I've been quoted $2000 for repainting. I would like to avoid this cost and the hassle of doing it myself.

Can I sand off the paint and just leave the aluminum bare?

Thanks in advance!
Edo Kazumichi is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 6 Old 03-09-2008
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,567
Thanks: 110
Thanked 320 Times in 305 Posts
Rep Power: 10
     
"Unpainted" masts are actually clear anodized. Aluminum, if left bare, will oxidize to a degree and stabilize, but the oxidation leaves a dusty/flaky surface that is unattractive and rubs off on contact.

If the paint is in good shape you should be able to do a scuff sand and repaint. Don't lay it on too thick, as all masts move to some extent and a thick layer of paint will tend to crack over time.

If you do go down to bare metal, then it needs to be thoroughly cleaned after sanding, lightly etched with a mild acidic (we used vinegar) before priming and painting. (We used Awlgrip products)

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is online now  
Quote Quick Reply Share with Facebook
post #3 of 6 Old 03-09-2008
Owner, Green Bay Packers
 
Join Date: Sep 2006
Location: SW Michigan
Posts: 10,318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
       
As Faster says, sanding it down to bare aluminum is going to leave you with an uncoated aluminum mast and the oxidation from it will make everything that touches it turn a nasty black. Re-anodizing it is possible but very expensive as you've got to find a facility capable of taking something that long. Spray clear coats tend to flake off like cellophane sheets in short order.

Try to detrmine the type of paint that is on the mast. If unable to do so, try various solvents as used with different paint types; the one that dissolves the paint is indicative of your paint type. I do not recommend removing the paint on the mast as long as it is adhering well. You'll have as much, or more, trouble getting your new paint to adhere to the primed aluminum as you will the old paint. Acquire the same type of paint used to paint the mast previously and apply it over the old paint after prepping the old paint. You need to take the gloss off the old paint for good adhesion of the new. Feather out gouges and fill any dents, etc... as they'll show up much more after painting.

I'ts not that big of a job, the prep work takes the most time. Rolling and tipping gives great results and, with a good color, you'll wonder why you ever thought that plain aluminum looked good.

“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.
sailaway21 is offline  
Quote Quick Reply Share with Facebook
post #4 of 6 Old 03-15-2008 Thread Starter
Member
 
Join Date: Apr 2006
Posts: 57
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
Thanks guys! Your input has saved me lots of $$ not to mention work!

So, what kind of paint do people usually use for this kind of job? I know you said to use whatever kind of paint is on there now but what would this likely be?

What about fittings? Should I remove and paint under them or just paint around them?

How do I "feather out gouges"?

How do I do a "scuff sand"? The paint's pretty old and not terribly glossy already.

While we're on the subject, what does it mean to "keep a wet edge" when painting a boat?

Thanks in advance!!!
Jghflash likes this.
Edo Kazumichi is offline  
Quote Quick Reply Share with Facebook
post #5 of 6 Old 03-15-2008
moderate?
 
camaraderie's Avatar
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 16
     
EDO...prepping and painting a mast is a big job with a number of steps to make it turn out right and last. Here's an overview:
Mast painting and Mast steps.

No longer posting. Reach me by PM!
camaraderie is offline  
Quote Quick Reply Share with Facebook
post #6 of 6 Old 03-15-2008
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Edo-

Remove the fittings that you can and paint under them, since that will give the paint the best chance of staying on the mast, and will allow you to inspect the fasteners and holes for corrosion and re-bed them with TefGel or LocTite (blue) as needed.

To scuff the exisiting paint, use a 120 grit sand paper, and sand it just enough to remove the gloss from the surface. Wash the surface well before you start sanding so you don't embed wax, oil or other surface contaminants when you sand.

To keep a wet edge refers to only painting an area small enough that the edge of it will still be wet when you move over to cover the next area. This is so the paint flows better and will hide the different sections and allow their edges to blend into each other.

Many masts are painted using a two-part LPU paint like Awlcraft. This gives a very durable and long-lived finish.

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
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:
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
Upgrading Spars Tom Wood Gear and Maintenance Articles 0 12-01-2003 07:00 PM
Upgrading Spars Tom Wood Cruising Articles 0 12-01-2003 07:00 PM
Offseason Spar Care SailNet Gear and Maintenance Articles 0 09-30-2002 08:00 PM
Refinishing Anodized Masts SailNet Gear and Maintenance Articles 0 11-04-2001 07:00 PM
Painting Masts SailNet Gear and Maintenance Articles 0 05-14-2001 08:00 PM

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