Using Bottom Paint on Brass Propeller - Page 4 - 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 Tree12Likes
Reply
 
LinkBack Thread Tools
  #31  
Old 04-30-2013
CalypsoP35's Avatar
Senior Member
 
Join Date: Jul 2006
Location: Cape Cod
Posts: 321
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
CalypsoP35 is on a distinguished road
Re: Using Bottom Paint on Brass Propeller

I've been using Trilux prop and drive spray, with limited success. By the end of the season it is pretty much all worn off. But now that I look at the label, it says for "aluminum" props. "Copper as metalic 4.48%."

Am I being an idiot by continuing to use this product on my bronze prop?
__________________
Calypso
Pearson P-35 #481
Reply With Quote Share with Facebook
  #32  
Old 04-30-2013
Fstbttms's Avatar
I don't discuss my member
 
Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 2,061
Thanks: 3
Thanked 18 Times in 18 Posts
Rep Power: 12
Fstbttms will become famous soon enough
Re: Using Bottom Paint on Brass Propeller

Quote:
Originally Posted by CalypsoP35 View Post
Am I being an idiot by continuing to use this product on my bronze prop?
Do so at your own risk.
Reply With Quote Share with Facebook
  #33  
Old 04-30-2013
Senior Member
 
Join Date: Aug 2006
Location: Anacortes, WA
Posts: 297
Thanks: 6
Thanked 0 Times in 0 Posts
Rep Power: 9
dave6330 is on a distinguished road
Re: Using Bottom Paint on Brass Propeller

OK - Galvonic corrosion...so I'm a little slow on the uptake....let me get this stright...

1. No paint on the exposed SS prop shaft (just clean it and install a new zinc).

2. Special zinc based paint for the bronze prop? Is this really better than simply cleaning the bronze prop and leaving it bare?

3. And bronze thruhulls - do they need special paint too??? I'm a little cornfused.

Currently "Between Boats" but wanting to stay current (no pun intended).

Dave
__________________
[/SIGPIC]Dave
Sailing out of Seward, Alaska

"Fight the good fight, holding on to faith and a good conscience. Some have rejected these and so have shipwrecked thier faith"
Reply With Quote Share with Facebook
  #34  
Old 04-30-2013
Senior Member
 
Join Date: Mar 2013
Location: NC
Posts: 378
Thanks: 32
Thanked 19 Times in 19 Posts
Rep Power: 2
FirstCandC is on a distinguished road
Re: Using Bottom Paint on Brass Propeller

Bumping to find out the answers to what Dave asked.
__________________
1977 C&C 27 MKIII
Sea Mist
Reply With Quote Share with Facebook
  #35  
Old 04-30-2013
T37Chef's Avatar
Senior Member
 
Join Date: Oct 2006
Posts: 4,161
Thanks: 65
Thanked 28 Times in 26 Posts
Rep Power: 8
T37Chef will become famous soon enough
Re: Using Bottom Paint on Brass Propeller

Zinc Coat Barnacle Barrier

"Zinc Coat Barnacle Barrier 1792 provides easy to use aerosol spray protection for bare metals including steel, stainless steel, cast iron, copper, bronze, galvanized steel, and lead. It forms an excellent bond to underwater metals and running gear, and inhibits corrosion on these surfaces. Zinc Coat Barnacle Barrier’s smooth, hard surface will self-clean in service, and can be used above or below the waterline. The dried film of Zinc Coat contains 93% pure zinc."

I have been using the above on my prop (SS), shaft (SS), and strut (bronze) for several years now with very good results except one season when the water temp were well above the average plus we didnt use the boat much during the month of August. The above is self cleaning when the boat is in service, I doubt anything will work well if you dont use the boat often, often meaning at least once a week.

I have used vaseline on my spped paddle wheel with great result, using a Q tip to apply. Some have mentioned using a sharpie also works well? Dunno

Last edited by T37Chef; 04-30-2013 at 05:29 PM.
Reply With Quote Share with Facebook
  #36  
Old 04-30-2013
Member
 
Join Date: Dec 2012
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
73Morgan is on a distinguished road
Re: Using Bottom Paint on Brass Propeller

Quote:
Originally Posted by dave6330 View Post
OK - Galvonic corrosion...so I'm a little slow on the uptake....let me get this stright...

1. No paint on the exposed SS prop shaft (just clean it and install a new zinc).

2. Special zinc based paint for the bronze prop? Is this really better than simply cleaning the bronze prop and leaving it bare?

3. And bronze thruhulls - do they need special paint too??? I'm a little cornfused.

Currently "Between Boats" but wanting to stay current (no pun intended).

Dave
Item 1&2, that is the consensus.
Item 3, bronze through halls, you need to strip all paint off the through hall and the area 6 to 12 inches around it, paint that with epoxy paint. The epoxy isolates the area around from electrolysis between the bronze and bottom paint. Then bottom paint over the epoxy.
This has worked well for me, hope to see how other people handle that.

Last edited by 73Morgan; 04-30-2013 at 10:10 PM.
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
bottom paint blakeyoung Gear & Maintenance 7 05-02-2013 07:06 AM
Paint thinner for soft ablative bottom paint jameswilson29 Gear & Maintenance 7 11-26-2012 12:56 PM
Don Casey: Paint Waterline Stripe with Bottom Paint asdf38 Gear & Maintenance 21 05-29-2012 01:09 PM
Bottom paint prep, chipped paint josrulz Gear & Maintenance 16 02-14-2010 08:24 PM
Bottom paint on propeller? aphil138 Gear & Maintenance 17 01-09-2007 05:29 PM


All times are GMT -4. The time now is 03:50 AM.

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.