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11-11-2020, 10:58
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#1
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Registered User
Join Date: Dec 2016
Location: Vallejo, CA
Boat: CHB Tri-Cab 35ft
Posts: 108
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ideas to polish and protect bronze
Hi,
I have a 40 year old CHB trawler built in Taiwan. Has lots of exposed real bronze fittings that I find quite tedious to keep clean and looking sharp. I've tried laboriously cleaning them and spraying with several different coatings, including some marketed for brass/bronze. Looks really good for about a month, then goes downhill fast. Then, it seems doubly hard to clean off the coating and get to real bronze again.
Maybe there is no "magic grease" available besides "elbow grease" but I'm hopefully that others have found a better solution to keep the bronze fittings shiny and shipshape.
Thanks,
Armand
__________________
Armand Seguin
Vallejo Calif
USCG Master
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11-11-2020, 11:19
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#2
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Registered User
Join Date: Jan 2013
Location: Adelaide Australia
Boat: Cuddles 30ft Motor Sailer
Posts: 286
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Re: ideas to polish and protect bronze
This guy has a few good tips.
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11-11-2020, 11:57
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#3
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Moderator

Join Date: Feb 2012
Location: Carrabelle, Florida
Boat: Fiberglas shattering 44' steel trawler
Posts: 5,904
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Re: ideas to polish and protect bronze
No magic. I can make our large and very exposed bell look good for a year or so (almost two right now) by polishing it up and then spraying it with lacquer or polyurethane VERY CAREFULLY. The usual problems are not getting a tight seal in the groves that circle the bell. I usually remove the stuff with a wire wheel, which for some reason results in a dark bronze finish (steel on bronze?).
The US Navy gets away with it because it takes more swabbies to fight a ship than it does to sail a it, so there's all this free labor standing around.
__________________
Never let anything mechanical know that you are in a hurry.
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11-11-2020, 14:20
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#4
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Registered User
Join Date: Dec 2008
Location: Noank, Ct. USA
Boat: Cape Dory 31
Posts: 3,024
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Re: ideas to polish and protect bronze
Verdigris is nature’s polish......
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11-11-2020, 16:01
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#5
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Registered User
Join Date: Nov 2018
Location: Panama
Boat: Norseman 447
Posts: 1,544
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Re: ideas to polish and protect bronze
Sign on a boat I visited:
TEAK IS GRAY
BRASS IS GREEN
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11-11-2020, 16:14
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#6
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Marine Service Provider
Join Date: Dec 2010
Location: Little Compton, RI
Boat: Cape George 31
Posts: 2,687
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Re: ideas to polish and protect bronze
Take your boat to sea and let some pure salt water wash over the bronze for a day or so. It will then turn a beautiful bright green.
'nuff said.
__________________
Ben
zartmancruising.com
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11-11-2020, 22:25
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#7
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Registered User
Join Date: Dec 2016
Location: Vallejo, CA
Boat: CHB Tri-Cab 35ft
Posts: 108
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Re: ideas to polish and protect bronze
Quote:
Originally Posted by Kokanee
This guy has a few good tips.
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Thanks, Bar Keeper's Friend! I have some...but I also have used a coarse plastic wheel. But sounds like nobody has so far figured out how to keep it looking Bristol. So much work...for??
Since many suggested "natural Green", and I don't have a large crew (me) that may have to do.
Armand
__________________
Armand Seguin
Vallejo Calif
USCG Master
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11-11-2020, 23:58
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#8
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Registered User
Join Date: Mar 2014
Location: Moreton Bay
Boat: US$4,550 of lead under a GRP hull with cutter rig
Posts: 2,133
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Re: ideas to polish and protect bronze
I've worked as crew very briefly on a superyacht that had THE answer to keeping bronze (not brass) looking shiny.
Simple.
Goldplating. Doesn't take much, apparently. Just a thin layer of gold.
At US$19,000/ounce, it's not kind to your wallet. But when economies around the world are growing fast, the price of gold falls.
Should we live so long, we might see that (world economic growth) again.
__________________
“Fools say that you can only gain experience at your own expense, but I have always contrived to gain my experience at the expense of others.” - Otto von Bismarck
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12-11-2020, 12:48
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#9
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Registered User
Join Date: Dec 2008
Location: Noank, Ct. USA
Boat: Cape Dory 31
Posts: 3,024
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Re: ideas to polish and protect bronze
Quote:
Originally Posted by Alan Mighty
I've worked as crew very briefly on a superyacht that had THE answer to keeping bronze (not brass) looking shiny.
Simple.
Goldplating. Doesn't take much, apparently. Just a thin layer of gold.
At US$19,000/ounce, it's not kind to your wallet. But when economies around the world are growing fast, the price of gold falls.
Should we live so long, we might see that (world economic growth) again.
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I’d be happy to sell you all of my gold for a very reasonable price....far below your quoted figure
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12-11-2020, 13:56
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#10
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Registered User
Join Date: Feb 2016
Location: Canada
Boat: T37
Posts: 2,317
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Re: ideas to polish and protect bronze
I’m in the green crowd for exterior bronze but I also give it a rub down with teak oil every so often. It darkens the green and makes it less flaky/chalky looking. Gives a nicer finishing and very easy to reapply.
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