Embedded Chain plate maint/replacement - Page 17 - 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? 


Like Tree81Likes
Reply
 
LinkBack Thread Tools
  #161  
Old 01-31-2014
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,744
Thanks: 56
Thanked 51 Times in 48 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Re: Embedded Chain plate maint/replacement

Quote:
Originally Posted by chucklesR View Post
The primary reason I went for internal vs external was the cost - electro plated plates are x5 the cost
Not sure what you mean by this. Were you looking at having them chromed? Or did you mean electro POLISHED?

If the latter, it only costs a few bucks - far less than the cost of the new chains being cut & drilled. It's well worth it too as the finish lasts WAY longer.

It also precludes crevice corrosion as there is no surface iron left to give it a path into the metal (as long as the electro surface lasts).
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
  #162  
Old 02-01-2014
Senior Member
 
Join Date: Feb 2012
Location: New Orleans Louisiana
Posts: 1,942
Thanks: 6
Thanked 43 Times in 41 Posts
Rep Power: 3
Stumble is on a distinguished road
Re: Embedded Chain plate maint/replacement

Sloop,

Electropolishing only slows down crevice corrosion it doesn't stop it. But it is a significant increase in durability and well worth the extra couple of bucks.
__________________
Greg Rubin
Attorney
Reply With Quote Share with Facebook
  #163  
Old 02-01-2014
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,744
Thanks: 56
Thanked 51 Times in 48 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Re: Embedded Chain plate maint/replacement

the way my polisher explained it, the process removes all the free iron molecules from the outer surface - to a very thin depth, less than .001".

That leaves the outer surface only the chrome and other alloys that comprise S/S so it does stop the crevice corrosion process until that thin layer eventually wears or weathers through, at which point normal corrosion processes start - the exposed iron molecules being the path in for crevice corrosion.

Getting the e-polishing redone every few years would keep it immune, barring damage.

The chains and floors I had done still looked like new after 7 years.
christian.hess likes this.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Share with Facebook
  #164  
Old 02-02-2014
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,825
Thanks: 100
Thanked 152 Times in 148 Posts
Rep Power: 2
christian.hess is on a distinguished road
Re: Embedded Chain plate maint/replacement

I had mine mirror polished...thats what they call it down here...its like glass...basically the top coat is melted down by buffing...you lose some thickness but because I had mine oversized to 3/8ths instead if 1/4 Im still way stronger

well see how long they last

even if its only 10 years Ill be happy for sure
__________________
Finally sailed!!!!!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Islander 36 refit still going on...

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #165  
Old 02-03-2014
Senior Member
 
Join Date: Feb 2012
Location: New Orleans Louisiana
Posts: 1,942
Thanks: 6
Thanked 43 Times in 41 Posts
Rep Power: 3
Stumble is on a distinguished road
Re: Embedded Chain plate maint/replacement

Electropolishing is a process where the metal is submerged in an acid and an electric current is run thru the system. This causes the imperfections to be lifted from surface. Basically it is plating in reverse, but because of the way it works it takes high spots down faster than the bulk of the material. By removing the high spots and edges it also reduces the number of crevices that salt crystals can hide in, which reduces the speed with which crevice corrosion can occur.


Sloop,

What you are talking about is called pasivation. Which helps bring the chromium to the surface. Since this is what provided the corrosion protection in stainless, the more surface chromium there is again the slower corrosion occurs.


These processes are complimentary but very different.
__________________
Greg Rubin
Attorney
Reply With Quote Share with Facebook
  #166  
Old 02-03-2014
chucklesR's Avatar
Senior Member
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,978
Thanks: 10
Thanked 30 Times in 30 Posts
Rep Power: 10
chucklesR is a jewel in the rough chucklesR is a jewel in the rough chucklesR is a jewel in the rough
Re: Embedded Chain plate maint/replacement

All I know is mine won't be shinny except the tops. My current set aren't either - and they've lasted 27 years.
christian.hess likes this.
__________________
Lessons learned are opportunities earned.
Reply With Quote Share with Facebook
  #167  
Old 02-03-2014
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,825
Thanks: 100
Thanked 152 Times in 148 Posts
Rep Power: 2
christian.hess is on a distinguished road
Re: Embedded Chain plate maint/replacement

thats how I see it too

cept mine were shiny all around stock...jajaja
__________________
Finally sailed!!!!!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Islander 36 refit still going on...

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #168  
Old 02-24-2014
chucklesR's Avatar
Senior Member
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,978
Thanks: 10
Thanked 30 Times in 30 Posts
Rep Power: 10
chucklesR is a jewel in the rough chucklesR is a jewel in the rough chucklesR is a jewel in the rough
Re: Embedded Chain plate maint/replacement

I got two warm days in a row so I made some progress.
Using West 105/205 and 405 as structual filler I laid in filler in the center slot where there used to be an air gap that became a water gap.
Keep in mind that the on old plates which were flat the only portion of the plate that touched the hull was the bottom 1/4 of an inch. What I need to do is build out a 'landing' for the new plates that will fit the curve of the hull and be flat at the plate.
https://lh6.googleusercontent.com/-s...o/P1010092.JPG

This is step one, in progress. Do some fill, then do some seal, then overcoat, and overcoat etc..
__________________
Lessons learned are opportunities earned.
Reply With Quote Share with Facebook
  #169  
Old 02-24-2014
jimgo's Avatar
Asleep at the wheel
 
Join Date: Sep 2011
Location: Pennsylvania
Posts: 2,916
Thanks: 71
Thanked 108 Times in 106 Posts
Rep Power: 4
jimgo is on a distinguished road
Re: Embedded Chain plate maint/replacement

Wait, I thought you had a dust factory. That almost looks like a boat interior.
__________________
- Jim
Home: Western Philly 'burbs
1980 Allmand 31
1975 Albacore 15


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #170  
Old 02-24-2014
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 10,744
Thanks: 56
Thanked 51 Times in 48 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Re: Embedded Chain plate maint/replacement

The quickest and easiest way to create the landing you need is to wrap the chains in packing tape, put a thick bed of thickened epoxy down where they will mount and put the chains in place.

Clean up the squeeze out and wait for the epoxy to kick. Then remove the chains, peel off the packing tape and you're ready to remount them.
mitiempo and christian.hess like this.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
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
Chain Plate Replacement casey1999 Gear & Maintenance 35 05-21-2013 11:53 PM
chain plate reinforcement UseDaGreyMatter MacGregor 1 12-30-2010 11:05 PM
Chain plate help atlanticcruiser Gear & Maintenance 15 12-20-2010 12:46 PM
Chain Plate (Not) davidpm Gear & Maintenance 2 04-14-2009 06:52 AM
Chain Plate Replacement jsutor Gear & Maintenance 1 04-30-2005 03:40 PM


All times are GMT -4. The time now is 09:45 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.