Cruisers Forum
 


Join CruisersForum Today

Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 19-10-2019, 13:56   #1
Registered User

Join Date: Sep 2019
Posts: 3
Help identifying white fluffy rust on keel bolts

Hi all,

I have rather badly rusted keel bolts and looking to clean them up or replace.

One in particular is quite bad and seems to be “shedding” rust and has an odd white crystal/fluffy ness to it.

I wondered if someone could help explain the process that is going on here, doesn’t seem to be happening to the others.

Pic attached.

Andy
Attached Thumbnails
Click image for larger version

Name:	2FE0B097-B5E7-4DFF-92CC-E8C6A82EDFC1.jpg
Views:	71
Size:	450.0 KB
ID:	201801  
Andycbriggs is offline   Reply With Quote
Old 20-10-2019, 04:04   #2
Senior Cruiser
 
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 36,365
Images: 241
Re: Help identifying white fluffy rust on keel bolts

Greetings and welcome aboard the CF, Andy.

White rust is a white, chalky substance, that can form on the surface of zinc materials, like galvanized steel, when the zinc is exposed to hydrogen and oxygen. This combination creates a zinc hydroxide (as opposed to the iron oxide, which is the common form of rust). While it can form on any zinc material (like sacrificial anodes) or zinc-coated material, white rust is a frequent problem for galvanized steel, especially in wet conditions with inadequate air circulation (bilges?).
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Reply

Tags
keel, keel bolts

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Surface Rust on Keel bolts: any sense in replacing just the nuts and washers? Phoenician Construction, Maintenance & Refit 20 14-07-2019 15:08
How white is too white? Ryban General Sailing Forum 54 21-06-2015 16:36
For Sale or Trade: U bolts, U bolts, and more U bolts off-the-grid Classifieds Archive 1 20-07-2012 16:33
Help identifying chain plate bolts Bradley Deck hardware: Rigging, Sails & Hoisting 2 20-10-2008 09:21
Rust/Cracks Around Keel Bolts chicago sailor Construction, Maintenance & Refit 13 15-05-2006 16:25

Advertise Here


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 01:58.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×

ShowCase vBulletin Plugins by Drive Thru Online, Inc.