Re: Stus-List Aluminum Chainplates good or bad
I just looked at the photos and agree with everything Bill said (including having a look under the deck -- if you can). Given that the cover is welded to the chainplate, inspecting just below the deck surface may present a challenge without removing the entire chainplate and cover together. Can you get a moisture meter under the deck in that area? From: Bill Coleman via CnC-List Sent: Wednesday, August 14, 2019 9:50 AM To: cnc-list@cnc-list.com Cc: Bill Coleman Subject: Re: Stus-List Aluminum Chainplates good or bad Sounds like it’s more about aesthetics. If you wanted to make it looks better with SS, You could use a ½” Bar above deck like you have but use much thinner material below, and taper as you go to the waterline. However, from those pictures that just looks like surface corrosion. The only part I would be worried about is what you can’t see just under the deck. I would think you could clean up the corrosion around the holes with some acid and a bronze wire brush, or SS wire wheel on a small grinder, prime with some zinc chromate and paint again. Bill Coleman Erie PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Daniel Cormier via CnC-List Sent: Wednesday, August 14, 2019 8:50 AM To: cnc-list@cnc-list.com Cc: Daniel Cormier Subject: Stus-List Aluminum Chainplates good or bad Hi all, My C&C44 has HUGE aluminum chainplates that go from the deck down the height of the boat almost to the waterline so very long piece of metal. The part under the deck is pristine aluminum 1/2” thick. Above deck the aluminum has started to show galvanic corrosion. (See photos). The mast is still off, should I replace, ignore, price out stainless? - if I replace with stainless can I go with thinner plates as 1/2” will weigh close to 100lbs for the piece I’d need and cost a pretty penny. I’d appreciate any and all thoughts or opinions. Cheers https://drive.google.com/file/d/18w32VAzCIHRD8f5hasX5kmWAaNRUH7tF/view?usp=drivesdk https://drive.google.com/file/d/1XGUuXEXlEHS5vrzGF_QJyku4pQ12reWf/view?usp=drivesdk https://drive.google.com/file/d/1UseiVG20RSlebsVNnit6VrXdDzPydQEq/view?usp=drivesdk https://drive.google.com/file/d/1g6NST9rrXC_XSQQgGzlsfEN5fRQoi8ex/view?usp=drivesdk Dan Cormier Breakaweigh C&C44 Halifax, NS ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
Re: Stus-List Aluminum Chainplates good or bad
Sounds like it’s more about aesthetics. If you wanted to make it looks better with SS, You could use a ½” Bar above deck like you have but use much thinner material below, and taper as you go to the waterline. However, from those pictures that just looks like surface corrosion. The only part I would be worried about is what you can’t see just under the deck. I would think you could clean up the corrosion around the holes with some acid and a bronze wire brush, or SS wire wheel on a small grinder, prime with some zinc chromate and paint again. Bill Coleman Erie PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Daniel Cormier via CnC-List Sent: Wednesday, August 14, 2019 8:50 AM To: cnc-list@cnc-list.com Cc: Daniel Cormier Subject: Stus-List Aluminum Chainplates good or bad Hi all, My C&C44 has HUGE aluminum chainplates that go from the deck down the height of the boat almost to the waterline so very long piece of metal. The part under the deck is pristine aluminum 1/2” thick. Above deck the aluminum has started to show galvanic corrosion. (See photos). The mast is still off, should I replace, ignore, price out stainless? - if I replace with stainless can I go with thinner plates as 1/2” will weigh close to 100lbs for the piece I’d need and cost a pretty penny. I’d appreciate any and all thoughts or opinions. Cheers https://drive.google.com/file/d/18w32VAzCIHRD8f5hasX5kmWAaNRUH7tF/view?usp=drivesdk https://drive.google.com/file/d/1XGUuXEXlEHS5vrzGF_QJyku4pQ12reWf/view?usp=drivesdk https://drive.google.com/file/d/1UseiVG20RSlebsVNnit6VrXdDzPydQEq/view?usp=drivesdk https://drive.google.com/file/d/1g6NST9rrXC_XSQQgGzlsfEN5fRQoi8ex/view?usp=drivesdk Dan Cormier Breakaweigh C&C44 Halifax, NS ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
Re: Stus-List Aluminum Chainplates good or bad
I’m not an engineer, but my guess is that stainless will work fine and likely stand up to salt water better than aluminum. The chainplates on my 42 are stainless. Although there is something to be said for direct replacements that fit exactly the same as the parts being replaced, I’m not sure this is a big issue with chainplates as it’s just a matter of lining up the holes. If you go with stainless, the chainplates can undoubtedly be thinner. A decent engineer familiar with metals can give you the thickness you’ll need to achieve the same (or greater) strength. Let us know what you decide. From: Daniel Cormier via CnC-List Sent: Wednesday, August 14, 2019 8:49 AM To: cnc-list@cnc-list.com Cc: Daniel Cormier Subject: Stus-List Aluminum Chainplates good or bad Hi all, My C&C44 has HUGE aluminum chainplates that go from the deck down the height of the boat almost to the waterline so very long piece of metal. The part under the deck is pristine aluminum 1/2” thick. Above deck the aluminum has started to show galvanic corrosion. (See photos). The mast is still off, should I replace, ignore, price out stainless? - if I replace with stainless can I go with thinner plates as 1/2” will weigh close to 100lbs for the piece I’d need and cost a pretty penny. I’d appreciate any and all thoughts or opinions. Cheers https://drive.google.com/file/d/18w32VAzCIHRD8f5hasX5kmWAaNRUH7tF/view?usp=drivesdk https://drive.google.com/file/d/1XGUuXEXlEHS5vrzGF_QJyku4pQ12reWf/view?usp=drivesdk https://drive.google.com/file/d/1UseiVG20RSlebsVNnit6VrXdDzPydQEq/view?usp=drivesdk https://drive.google.com/file/d/1g6NST9rrXC_XSQQgGzlsfEN5fRQoi8ex/view?usp=drivesdk Dan Cormier Breakaweigh C&C44 Halifax, NS ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
Re: Stus-List Aluminum Chainplates good or bad
If you decide to replace with stainless, talk to Guido at Garhauer Marine. My boat repair colleague just replaced all the chain plates on a Cheoy Lee with plates made by Guido. They were gorgeous. No clue on cost. My buddy is meticulous. He asked Guido about the origin and trace-ability of the stainless he uses. Guido sent him the papers showing the metal wasn't counterfeit stainless from nowhere. Dennis C. Touche' 35-1 #83 Mandeville, LA On Wed, Aug 14, 2019 at 7:50 AM Daniel Cormier via CnC-List < cnc-list@cnc-list.com> wrote: > Hi all, > My C&C44 has HUGE aluminum chainplates that go from the deck down the > height of the boat almost to the waterline so very long piece of metal. The > part under the deck is pristine aluminum 1/2” thick. Above deck the > aluminum has started to show galvanic corrosion. (See photos). The mast is > still off, should I replace, ignore, price out stainless? - if I replace > with stainless can I go with thinner plates as 1/2” will weigh close to > 100lbs for the piece I’d need and cost a pretty penny. > > I’d appreciate any and all thoughts or opinions. > > Cheers > > > https://drive.google.com/file/d/18w32VAzCIHRD8f5hasX5kmWAaNRUH7tF/view?usp=drivesdk > > > https://drive.google.com/file/d/1XGUuXEXlEHS5vrzGF_QJyku4pQ12reWf/view?usp=drivesdk > > > https://drive.google.com/file/d/1UseiVG20RSlebsVNnit6VrXdDzPydQEq/view?usp=drivesdk > > > https://drive.google.com/file/d/1g6NST9rrXC_XSQQgGzlsfEN5fRQoi8ex/view?usp=drivesdk > > Dan Cormier > Breakaweigh > C&C44 > Halifax, NS > > > ___ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > ___ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
