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  Topic Review (Newest First)
4 Weeks Ago 06:15 PM
Hooper1819
Re: Re-Chroming Lewmar Winches

Good news! Patrick at Nassau Chromium will be happy to hear that. Appreciate you taking the time!
4 Weeks Ago 12:36 PM
CLucas
Re: Re-Chroming Lewmar Winches

Quote:
Originally Posted by Hooper1819 View Post
Good Evening Mr. Lucas,

I was impressed by your review of Nassau Chromium and interested in learning how your winches have aged since they were rechromed? Also interested in learning which specific process you procured from Nassau? I am considering retaining them for my anchor windless and wanted to check in first. Thanks for taking the time.

Dave
Nassau Chromium did a great job re-chroming my Lewmar 40s in 2008 (I think). Not sure of the process they used, but I did stress the need for durability and corrosion resistance and made sure they knew these would be exposed to salt water. They've held up very well though a few areas show minor pitting. Should mention in salt water and keep my winches covered when I'm not sailing. I'd go back to them without hesitation.
4 Weeks Ago 07:47 PM
Hooper1819
Re: Re-Chroming Lewmar Winches

Good Evening Mr. Lucas,

I was impressed by your review of Nassau Chromium and interested in learning how your winches have aged since they were rechromed? Also interested in learning which specific process you procured from Nassau? I am considering retaining them for my anchor windless and wanted to check in first. Thanks for taking the time.

Dave
12-17-2009 06:01 PM
botanybay
Quote:
Originally Posted by arf145 View Post
That's usually Previous Owner
Ah, much like my "Came With The Boat"

Thanks
12-17-2009 03:41 PM
arf145
Quote:
Originally Posted by botanybay View Post
What is "by the PO" I assume that was the vendor you used?
That's usually Previous Owner
12-17-2009 02:05 PM
botanybay
Quote:
Originally Posted by gtod25 View Post
I have 6 of these re chromed by the PO (2 x 28 ST, 1 x 22 ST, 1 x 22, and 2 x 16 - all Barlow) and had no idea about the technology. I am still a little concerned about the "grip" but they look nice. Time will tell.

They definitely look great!

What is "by the PO" I assume that was the vendor you used?

Thanks
12-17-2009 01:25 PM
gtod25
Thanks for all the great info....

I have 6 of these re chromed by the PO (2 x 28 ST, 1 x 22 ST, 1 x 22, and 2 x 16 - all Barlow) and had no idea about the technology. I am still a little concerned about the "grip" but they look nice. Time will tell.

12-17-2009 12:58 PM
botanybay
Quote:
Originally Posted by dillybar View Post
Gramp34 has it exactly right. The main difference between the two is the prep and process. Decorative chrome uses some brightening alloys and is designed to throw well into nooks and crannies in very thin layers where industrial chrome is engineered for hardness, and speed of deposition but the material is similar.
Decorative chrome typically uses a copper layer first primarily to seal the parent material for corrosion resistance as plated chrome is very porous. That is not to say industrial chrome can not be plated over copper,(it's done all the time for carbon steel marine duty piston rods) it's just that industrial applications don't normally require it so industrial shops have no need to dedicate space and expense to have a copper tank.

Ind. chrome can easily be deposited in thicknesses exceeding .020",however .002" would be lots for a winch that combined with the harder deposit (78 RC) means much greater wear resistance. Because mirror finishes are not required, Ind. shops won't have the buffing equipment to get a show finish, again, not to say ind. chrome can't buff up surprisingly well.

So what it boils down to is what your priorities are - Dec. chrome will look fantastic, wear reasonably well and protect the base material well whereas heavily plated ind. chrome over copper will last for the life of the boat and if reverse etched for 30 sec. after plating will grip your lines like sh*t to a blanket but will have a grey appearance. BTW you would expect to pay 2 to 3 times more for the industrial chrome proces described.

And yes, I did stay at a Holiday Inn Express last night (and own an industrial chrome shop).
Thank you so much for the information!

I obtained a reference to what is originally on the Winches which I am still trying to work through completely but it is a copper undercoat, a double or triple laer of nickel to a total of 25 microns, and then a minimum of 0.5 microns of chromium.

The parts are copper plated, polished, and then re-coppered and polished prior to the three coats of nickel and then a chromium layer.

At least I now know what I am trying to achieve!

The base specification is BS EN 12540:2000 service condition 4.

Off to find a shop which can do this!

I'll let you know what I find.
12-17-2009 02:33 AM
SVPrairieRose
Quote:
Originally Posted by Jeff_H View Post

As to the winches on my current boat, while this surface has been polished back to bronze, I have not rechromed it. I see boats as tools to me and see this as a wear pattern of a well used fine tool.

Jeff
Cheers to that!
12-17-2009 12:15 AM
dillybar Gramp34 has it exactly right. The main difference between the two is the prep and process. Decorative chrome uses some brightening alloys and is designed to throw well into nooks and crannies in very thin layers where industrial chrome is engineered for hardness, and speed of deposition but the material is similar.
Decorative chrome typically uses a copper layer first primarily to seal the parent material for corrosion resistance as plated chrome is very porous. That is not to say industrial chrome can not be plated over copper,(it's done all the time for carbon steel marine duty piston rods) it's just that industrial applications don't normally require it so industrial shops have no need to dedicate space and expense to have a copper tank.

Ind. chrome can easily be deposited in thicknesses exceeding .020",however .002" would be lots for a winch that combined with the harder deposit (78 RC) means much greater wear resistance. Because mirror finishes are not required, Ind. shops won't have the buffing equipment to get a show finish, again, not to say ind. chrome can't buff up surprisingly well.

So what it boils down to is what your priorities are - Dec. chrome will look fantastic, wear reasonably well and protect the base material well whereas heavily plated ind. chrome over copper will last for the life of the boat and if reverse etched for 30 sec. after plating will grip your lines like sh*t to a blanket but will have a grey appearance. BTW you would expect to pay 2 to 3 times more for the industrial chrome proces described.

And yes, I did stay at a Holiday Inn Express last night (and own an industrial chrome shop).
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