What is the best way to prevent barnacle growth on the propeller? - 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 Tree2Likes
Reply
 
LinkBack Thread Tools
  #1  
Old 12-12-2011
jameswilson29's Avatar
Senior Smart Aleck
 
Join Date: Aug 2009
Location: Richmond, Virginia
Posts: 2,152
Thanks: 34
Thanked 70 Times in 65 Posts
Rep Power: 6
jameswilson29 is on a distinguished road
What is the best way to prevent barnacle growth on the propeller?

I am thinking about putting several coats of ordinary metal paint on the propeller, sanding, and applying ablative bottom paint.

By the way, I removed my propeller yesterday without a $200 propeller puller. Instead, I used a $15 Wallyworld propane torch, a piece of scrap lumber, and an ordinary hammer.

The temperature was in the mid-40s at the marina, so the torch created quite a temperature differential between the propeller and the propeller shaft, which remained cool to the touch. After the propeller heated up, I was able to pop it off with the hammer. The old prop was in bad shape: SailNet Community - jameswilson29's Album: Winter repairs: replace propeller

Last edited by jameswilson29; 12-12-2011 at 09:26 AM.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 12-12-2011
Senior Member
 
Join Date: Feb 2007
Location: New Jersey
Posts: 2,064
Thanks: 6
Thanked 53 Times in 52 Posts
Rep Power: 8
Tempest is on a distinguished road
Based on reports that I read here..( can't find the thread). I used Petit Zinc Coat Barnacle Barrier on my prop at the beginning of this past season.

Pettit Zinc Coat Barnacle Barrier

I applied three lite coats to a clean prop. When I pulled the boat this November I was amazed, not a single barnacle on the prop. It looked exactly the same as the day it went into the water. I was planning on posting a picture the next time I go down to the boat. This product worked great for me!
chef2sail and cpeek like this.
__________________
Tempest
Sabre 34
Morgan, NJ
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 12-12-2011
jameswilson29's Avatar
Senior Smart Aleck
 
Join Date: Aug 2009
Location: Richmond, Virginia
Posts: 2,152
Thanks: 34
Thanked 70 Times in 65 Posts
Rep Power: 6
jameswilson29 is on a distinguished road
Did you prime the propeller or put the zinc paint directly on the bare metal?
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 12-12-2011
BubbleheadMd's Avatar
Chastened
 
Join Date: Nov 2009
Location: Edgewater/Annapolis
Posts: 3,039
Thanks: 1
Thanked 60 Times in 56 Posts
Rep Power: 6
BubbleheadMd will become famous soon enough
Send a message via Yahoo to BubbleheadMd
Quote:
Originally Posted by Tempest View Post
Based on reports that I read here..( can't find the thread). I used Petit Zinc Coat Barnacle Barrier on my prop at the beginning of this past season.

Pettit Zinc Coat Barnacle Barrier

I applied three lite coats to a clean prop. When I pulled the boat this November I was amazed, not a single barnacle on the prop. It looked exactly the same as the day it went into the water. I was planning on posting a picture the next time I go down to the boat. This product worked great for me!
I did the same. I believe the directions called for a direct application to clean, bare metal, with no primer.
__________________
S/V Old Shoes
1973 Pearson 30 #255
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 12-12-2011
RichH's Avatar
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,966
Thanks: 10
Thanked 89 Times in 81 Posts
Rep Power: 15
RichH will become famous soon enough
2007-2009 were especially bad for barnacles on the Upper Chesapeake .... the deposition of 'slime' was especially bad which let the barnacles get a 'foothold' on virtually 'everything' including normal bottom paint. Pettit Zinc Coat Barnacle Barrier - kept my prop stunningly free of barnacles.

2010 the water in the bay kept 'turning over' and mixing with the return of the prevailing SW winds (were primarily westerly in 2007-2009 and the bay did not 'turnover'), no slime and very few barnacles!!!!! ... but I still paint the prop with Pettit Zinc Coat Barnacle Barrier!
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 12-12-2011
PhilipStevens's Avatar
Member
 
Join Date: Mar 2002
Location: Cornwall, UK
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
PhilipStevens is on a distinguished road
Send a message via Skype™ to PhilipStevens
Quote:
Originally Posted by jameswilson29 View Post
Did you prime the propeller or put the zinc paint directly on the bare metal?
I have just been reading all the tech specs, and it has to go on bare metal - no primer - but two coats. The second coat when the first is touch dry.

"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. Not for use on aluminum surfaces."

Looks good.

I have located a similar product in the UK - Zingaspray. http://www.zinga-uk.com/how.html.
"• In some marine environments barnacles do not like the taste of zinc and many other forms of marine life do not like adhering to the Zinga surface because of the low current passing between the zinc and the substrate."

I have tried -
bare polished prop - growth after a few months.
hard anti-fouling - reasonable result until it started to flake off.

I think I will be giving Zingaspray a go this coming season.
__________________
regards,
Philip.
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 12-12-2011
Senior Member
 
Join Date: Jun 2001
Posts: 582
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 14
sailordave is on a distinguished road
One more vote for Barnacle Barrier here!
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 12-12-2011
kb3pwc's Avatar
Senior Member
 
Join Date: May 2009
Location: Pennsylvania
Posts: 121
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 6
kb3pwc is on a distinguished road
Very interesting....Is the Zinc Coat cheaper than Prop Speed (that works extremely well but is very pricey)? We had the unfortunate loss of our clean, shiny one year old Prop Speed due to having our bottom sand blasted and they went hog wild and did the prop too. Maybe we should switch???

Leslie

s/v Tango, Cabo Rico 34
On the Hard, Lankford Bay Marina
Chester River, MD
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 12-12-2011
jrd22's Avatar
Courtney the Dancer
 
Join Date: Nov 2000
Location: San Juan Islands., WA, USA
Posts: 3,844
Thanks: 3
Thanked 18 Times in 18 Posts
Rep Power: 15
jrd22 will become famous soon enough
I've used Trilux spray antifoul that is designed for outdrives and lower units on outboards. I prime the bare metal with zinc chromate spray primer and then two coats of the Trilux. Two years in the water and no barnacles here in the PNW (not sure how it would hold up elsewhere), and the paint is still looks good on the prop. About $20/can at WM.
__________________
John
SV Laurie Anne

1988 Brewer 40 Pilothouse

Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 12-12-2011
Senior Member
 
Join Date: Feb 2007
Location: New Jersey
Posts: 2,064
Thanks: 6
Thanked 53 Times in 52 Posts
Rep Power: 8
Tempest is on a distinguished road
Quote:
Originally Posted by jameswilson29 View Post
Did you prime the propeller or put the zinc paint directly on the bare metal?
Bare metal. Clean and shiny. Try to pick a day that's not too windy
__________________
Tempest
Sabre 34
Morgan, NJ
Reply With Quote Quick reply to this message Share with Facebook
Reply

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
Barnacle Anchor Keldee Gear & Maintenance 2 12-02-2010 10:02 AM
Barnacle removal BubbleheadMd Gear & Maintenance 16 11-14-2010 09:25 AM
Bad barnacle year so far on the Hudson River CalebD General Discussion (sailing related) 0 08-19-2010 11:26 PM
How to prevent snapping the key ekenna Gear & Maintenance 9 04-09-2010 02:20 AM
Barnacle Poisoning? Sue & Larry Seamanship Articles 0 02-12-2002 08:00 PM


All times are GMT -4. The time now is 11:33 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.