Rust stains at partners? - 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 12-18-2013
L124C's Avatar
Senior Member
 
Join Date: Oct 2007
Posts: 1,388
Thanks: 48
Thanked 3 Times in 3 Posts
Rep Power: 8
L124C is on a distinguished road
Rust stains at partners?

I installed Spartite several years ago and it has worked well. Recently the silicone seal I put around the outside (as instructed) has started to leak. No big deal, I simply resealed it.

What concerns me is what appears to be rust stains coming down the mast below the partners, from where it was leaking. The stains are not visible above deck. The mast and partners are aluminum. Other than Spartite and silicone the only other substance used was the Vaseline Spartite says to lubricate the partners with.
Any thoughts on the stains?

Last edited by L124C; 12-20-2013 at 03:36 AM.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 12-19-2013
Delta-T's Avatar
Senior Member
 
Join Date: Oct 2013
Posts: 432
Thanks: 23
Thanked 28 Times in 25 Posts
Rep Power: 2
Delta-T is on a distinguished road
Re: Rust stains at partners?

I understand the upload is not working correctly. Most use Photo bucket for upload and then use the mountain icon on the top of SN post Message edit menu. Sorry can't help you with your rust issue.
__________________
Delta-T
1969 Bristol 32 Keel/CB Hull 26
Narragansett Bay RI USA
Reply With Quote Quick reply to this message Share with Facebook
The Following User Says Thank You to Delta-T For This Useful Post:
L124C (12-20-2013)
  #3  
Old 12-20-2013
Member
 
Join Date: Sep 2013
Location: Muskegon, Mich
Posts: 59
Thanks: 0
Thanked 6 Times in 6 Posts
Rep Power: 2
capt jgwinks is on a distinguished road
Ive got the same brown goo oozing from a couple of places under the deck of my 1969 Columbia 36. Its not rust, I think its color leaching out of the balsa core and/or polyester resin. If you take the whole works apart and seal the edges of the hole with epoxy, you should stop getting three stains. While you've got it apart, check for water intrusion into the deck core.
Reply With Quote Quick reply to this message Share with Facebook
The Following User Says Thank You to capt jgwinks For This Useful Post:
L124C (12-21-2013)
  #4  
Old 12-20-2013
Senior Member
 
Join Date: Dec 2013
Posts: 154
Thanks: 5
Thanked 14 Times in 13 Posts
Rep Power: 1
IStream is on a distinguished road
Re: Rust stains at partners?

I'm guessing it's from your deck core.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 12-21-2013
L124C's Avatar
Senior Member
 
Join Date: Oct 2007
Posts: 1,388
Thanks: 48
Thanked 3 Times in 3 Posts
Rep Power: 8
L124C is on a distinguished road
Re: Rust stains at partners?

Quote:
Originally Posted by capt jgwinks View Post
Ive got the same brown goo oozing from a couple of places under the deck of my 1969 Columbia 36. Its not rust, I think its color leaching out of the balsa core and/or polyester resin. If you take the whole works apart and seal the edges of the hole with epoxy, you should stop getting three stains. While you've got it apart, check for water intrusion into the deck core.
Jeeez...I don't know which is worse, rust or color oozing from the core!
The only problem I have with that theory, is that the partners consist of a aluminum collar that lines entire the deck opening. I'll have to examine the partners topside with your theory in mind.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 12-21-2013
hellosailor's Avatar
Senior Member
 
Join Date: Apr 2006
Posts: 10,798
Thanks: 2
Thanked 97 Times in 94 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: Rust stains at partners?

I suspect the answer in all cases is that something is wrong, and you'll need to pull the mast, inspect, and repair. If that's deck, you may find extensive work to be done. And at the same time, might as well have the mast & fittings inspected, do whatever else can be done while it is down. Replace the bulbs in the masthead lights while they're at hand, too.

It sure looks like rust to me, but I've been surprised before.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 12-22-2013
L124C's Avatar
Senior Member
 
Join Date: Oct 2007
Posts: 1,388
Thanks: 48
Thanked 3 Times in 3 Posts
Rep Power: 8
L124C is on a distinguished road
Re: Rust stains at partners?

Quote:
Originally Posted by hellosailor View Post
I suspect the answer in all cases is that something is wrong, and you'll need to pull the mast, inspect, and repair. If that's deck, you may find extensive work to be done. And at the same time, might as well have the mast & fittings inspected, do whatever else can be done while it is down. Replace the bulbs in the masthead lights while they're at hand, too. It sure looks like rust to me, but I've been surprised before.
It's time to pull the stick for several reasons so that's no big deal.
However, I'm thinking about solutions if it does turn out to be rust. Is it even possible that aluminum could rust like that?
I'm wondering if lack of oxygen due to the Spartite could create a condition similar to crevice corrosion in Stainless. I researched Spartite prior to using it and never saw that possibility mentioned.

Last edited by L124C; 12-22-2013 at 12:40 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 12-22-2013
Delta-T's Avatar
Senior Member
 
Join Date: Oct 2013
Posts: 432
Thanks: 23
Thanked 28 Times in 25 Posts
Rep Power: 2
Delta-T is on a distinguished road
Re: Rust stains at partners?

Never seen alum rust like that. I have done some research on stainless steel and have seen mention to it needing oxygen. I just removed a SS bolt and it was rusting real bad and had no oxygen.

"The basic resistance of stainless steel occurs because of its ability to form a protective coating on the metal surface. This coating is a "passive" film which resists further "oxidation" or rusting. The formation of this film is instantaneous in an oxidizing atmosphere such as air, water, or other fluids that contain oxygen. Once the layer has formed, we say that the metal has become "passivated" and the oxidation or "rusting" rate will slow down to less than 0.002" per year (0,05 mm. per year).

Unlike aluminum or silver this passive film is invisible in stainless steel. It's created when oxygen combines with the chrome in the stainless to form chrome oxide which is more commonly called "ceramic". This protective oxide or ceramic coating is common to most corrosion resistant materials" Quote from: http://www.mcnallyinstitute.com/04-html/4-1.html
__________________
Delta-T
1969 Bristol 32 Keel/CB Hull 26
Narragansett Bay RI USA

Last edited by Delta-T; 12-22-2013 at 01:01 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 12-22-2013
hellosailor's Avatar
Senior Member
 
Join Date: Apr 2006
Posts: 10,798
Thanks: 2
Thanked 97 Times in 94 Posts
Rep Power: 10
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: Rust stains at partners?

Aluminum is incapable of rusting. Rust if a slow oxidation of iron, and iron only. Aluminum can and will oxidize, normally forming an extremely thin and hard aluminum oxide coating, which seals it like a glaze and prevents further damage. When or if it does not seal, it forms a white powder instead, and only a very white powder.

So whether you call that rust or not--it won't be the color of iron rust. Not from an aluminum mast.

Maybe there's a steel track? Or steel screws holding a track into the mast? Or some other steelwork hiding in there?
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 12-22-2013
L124C's Avatar
Senior Member
 
Join Date: Oct 2007
Posts: 1,388
Thanks: 48
Thanked 3 Times in 3 Posts
Rep Power: 8
L124C is on a distinguished road
Re: Rust stains at partners?

Looking at the partners topside didn't reveal anything.
For what it's worth, I took this shot of the Cowling opening from below, which is nine inches from the mast. The darker wood on top is a spacer for the cowling.
Core seems dry, though I can dent it with my fingernail. Certainly no stains at the opening.

Last edited by L124C; 12-22-2013 at 01:27 PM.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Tags
mast , partners , rust , spartite , yankee 30

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
Removing rust stains from "Starboard" TakeFive Gear & Maintenance 19 12-21-2013 03:55 PM
Looking for sailing partners. jeffgoldberg Introduce Yourself 7 11-25-2011 03:12 PM
Removing rust stains on sails harpguitar Gear & Maintenance 10 06-02-2010 03:10 PM
deck stains/green spots/and a little rust QuickMick Gear & Maintenance 6 11-05-2009 12:44 PM
Rust stains on sails tybert Introduce Yourself 0 07-02-2008 12:30 PM


All times are GMT -4. The time now is 08:46 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.