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Lewmar aluminium frames

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Breathe View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Breathe Quote  Post ReplyReply Direct Link To This Post Posted: 20 June 2022 at 01:26
Richard, how was Lewmar for delivery of the frames?    Because my boat is a 2018 build Lewmar offered a discount on the pricing of anodised frames, so I have ordered a complete set. It is about 2 months since I ordered and I am regularly advised that the frames will be shipped in “a couple of weeks”. It is getting frustrating.
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Matt1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Matt1 Quote  Post ReplyReply Direct Link To This Post Posted: 20 June 2022 at 04:46
Hi Gordon, mine took about 6 weeks back in April (I ordered 2). I paid half price by going via my dealer. I’m a 2018 build too. I suspect they are prioritising the big boat builders. Not a surprise, they had plenty of the powder coated available ;) the delay was on anodised.
Hanse 418 #64 EmBer. Hamble, UK

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Richard Hall View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Richard Hall Quote  Post ReplyReply Direct Link To This Post Posted: 20 June 2022 at 05:47
When I contacted them they had 1 in stock and that came in to the dealers in a few days. They have been coming in piecemeal, which works for me travelling down to Malta each month and Air Malta let me take them as hand luggage.  They are supposed to have more stock coming after 27th June according to the dealer ordering system.  I pick them up as they come in.  I live in Hampshire not far from the Lewmar offices so that may be a factor.  If you have someone who does hard anodizing near you they should be able to redo the old ones.  I paid £60 for that but the issue then was the seized bolts each time. The hinge weld is not strong in sheer so penetrating oil and shocking the bolt generally removes the hinge! Heat had no effect and in the end I had to grind off the bolt and drill it out. If you do this the cost of the seal and the new fittings makes it about the same.
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Richard Hall View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Richard Hall Quote  Post ReplyReply Direct Link To This Post Posted: 27 July 2022 at 13:37
My second one showed up yesterday about a month late.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Idle Hour Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2024 at 11:15
Hi Richard, 

I have a 2016 hanse 455 , have you get a link to where you purchased the frames please and what model are they ?

Kind Regards

Charlie 
Charlie
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perry View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote perry Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2024 at 13:01
Powder coating ?.  30 years back I did some extensive experimental work on various powder coating systems for corrosion protection. Absolutely useless for protection, thickening the coating reduced the porosity but only with thicknesses above 3mm?. 
No it doesnt work, 
If you look around at any number of products where powder coating is 
used eg. cheap bicyles, garden equipment barrows etc, you will see plenty of corrosion fails. Anodised aluminium is good, why anyone changed? probably the promised of powder coating companies?
So do not replace failed powder coated hatch frames with more powder coated frames, they will fail, they will leak.
If the frames conform to new [fashion] of flush hatches just more trouble.
In my experience
Perry
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Current Yacht Hanse 315 2007
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Idle Hour Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2024 at 13:03
I agree, 

I am looking fopr anodised replacements which I believe are stocked now
Charlie
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pdc78 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pdc78 Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2024 at 16:50
One of the side windows on my 2016 345 is leaking because of the powder coating failure, and I am waiting for an overdue replacement frame from Lewmar via the dealer.  I can see that the other three have signs of coating failure and will need replacing in due course.  Lewmar Tech Support acknowledged the problem, but could not supply an anodised replacement.  So my strategy is to replace the current leaking one with an 'assured good' Lewmar powder coated one and then get the old one black anodised (or maybe even plywood blank a second hatch to release two for refurbishment).  The cost of black anodising locally is about 1/3 of the new frame.  I have been warned that the black anodisation is more shiny dark grey than jet black, but I figure it won't be that conspicuous being covered by the polycarbonate oversized windows on the outside and the folding blinds inside the saloon.

It's strange that Lewmar could not supply an anodised frame. It is just a 'standard' rectangular radiused hatch.  The custom built cranked top hatch which failed last year was available in powder coated white or silver anodised - I chose that latter and it is definitely the best option.

I'm just hoping that the coach roof side frames come out as easily as the top forward hatch . . . .

Regards,  Paul
H345 #269
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perry View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote perry Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2024 at 20:14
You can get anodising pretty much any colour. It is a process of first creating an anodised layer deep enough [aluminium oxide] to contain dye,  then immersed in the dye, then post treated to seal the poroisity.
I quote from a specialist:-
"Electrochemically anodizing aluminum produces an aluminum oxide surface that has:
  • Corrosion resistance
  • A pleasing appearance
  • Wear resistance
  • Improved paint or adhesive bonding
  • Improved lubricity
  • Improved plating adhesion
This article will focus on anodizing aluminum. But, other metals can be anodized, including magnesium, titanium, and aluminum alloy. There are several types of anodized aluminum finishes, including clear anodized aluminum, black anodized aluminum, and hard anodized aluminum. There are also a few commonly referenced anodizing types: Type I, Type II, and Type II.""
Current Yacht Hanse 315 2007
Last Yacht Hanse 301 Round GB in 2017
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pdc78 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pdc78 Quote  Post ReplyReply Direct Link To This Post Posted: 23 September 2024 at 20:27
Thanks Perry.  All understood.   I should have said that the local to me anodising company will do hard black anodising,  but have warned that it will be dark grey as described.  
Regards, Paul 


Edited by pdc78 - 23 September 2024 at 20:27
H345 #269
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