Reply
 
Thread Tools Display Modes
 
Old 03-10-2016, 03:52 PM   #21
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,996
Greetings,
Mr. 717. MY OPINION ONLY. Either leave your prop shafts as they are or have them professionally refurbished. Epoxy, regardless of your surface preparation will be hard pressed to adhere for any length of time given the environment and the operating conditions.
__________________
Advertisement

__________________
RTF
RT Firefly is online now   Reply With Quote
Old 03-10-2016, 04:12 PM   #22
Senior Member
 
tallswede's Avatar
 
City: Baytown, Texas
Country: USA
Vessel Name: Islander
Vessel Model: Prairie 36
Join Date: May 2013
Posts: 245
Angus, that is very much like the pitting I have. We will probably make new shafts of Aquamet. My rudders are welded onto the shafts so they will have to be cut off and welded back onto the new shafts. Turning the shafts with the rudders attached isn't feasible. We'll see what the machine shop says this week. Looks like beautiful work on your rudder shafts.



Kevin
Attached Images
 
__________________

tallswede is offline   Reply With Quote
Old 03-10-2016, 04:54 PM   #23
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Quote:
Originally Posted by RT Firefly View Post
Greetings,
Mr. 717. MY OPINION ONLY. Either leave your prop shafts as they are or have them professionally refurbished. Epoxy, regardless of your surface preparation will be hard pressed to adhere for any length of time given the environment and the operating conditions.

Belzona 1111 (Super Metal) Epoxy based composite
Capt.Bill11 is offline   Reply With Quote
Old 03-10-2016, 05:03 PM   #24
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,996
Greetings,
Mr. 11. Fair enough.
__________________
RTF
RT Firefly is online now   Reply With Quote
Old 03-10-2016, 11:07 PM   #25
Guru
 
City: Seaford Va on Poquoson River, VA
Country: United States
Vessel Name: Old Glory
Vessel Model: 1970 Egg Harbor 37 extended salon model
Join Date: Jan 2016
Posts: 1,304
Quote:
Originally Posted by RT Firefly View Post
Greetings,
Mr. 11. Fair enough.
Belzona is likely one of the best epoxies to use for this.
And consider a benefit is the metal is then sealed from water, so no more galvanic-crevice corrosion.Reason the shafts corrode is the tight seal I suppose cuts down on oxygen when it sits not spinning. I was thinking it would not be very hard as a DIY. Simply grind enough to get a thin coating of Belzona on. Use a flat edge and drag it around the shaft to conform the epoxy to round. then a little sanding to smooth it. I run the soft GFO packing, it can handle a little non conformity, and being soft wont cut into the Belzona.

http://www.belzona.com/en/products/1000/1221.aspx
sdowney717 is offline   Reply With Quote
Old 03-11-2016, 07:12 AM   #26
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,525
"And consider a benefit is the metal is then sealed from water, so no more galvanic-crevice corrosion."

I believe it is sealing from AIR that causes SS to die, not being wet.
__________________

FF is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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





All times are GMT -5. The time now is 04:08 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012