Dinghy refurbishment - what to do about the rubbing strake?

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Nick
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Dinghy refurbishment - what to do about the rubbing strake?

Postby Nick » Sat Jan 22, 2011 12:58 pm

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I am in the process of refurbishing our hard tender that we use for going out to the mooring. The old rubber rubbing strake is hardened and deformed and I have removed it. It was made of D-shaped white plastic witha slot in it that allowed it to fit over the flange at the hull/deck join.

I can find all sorts of d-fender mouldings, but none of them have a slit in them like this. Has anyone got any ideas or suggestions?

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Silkie » Sat Jan 22, 2011 7:31 pm

How about foam pipe insulation? It'll probably only last a couple of seasons but is dirt cheap (highly subsidised price I think) and would be very gentle on Fairwinds. Perhaps use something like Copydex to help keep it in place. Or perhaps glue on split hose first (the external diameter of the hose equal to the internal diameter of the insulation) which would hold the insulation very well and make it easy to replace in years to come.
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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Nick » Sat Jan 22, 2011 8:29 pm

Silkie wrote:How about foam pipe insulation? It'll probably only last a couple of seasons but is dirt cheap (highly subsidised price I think) and would be very gentle on Fairwinds. Perhaps use something like Copydex to help keep it in place. Or perhaps glue on split hose first (the external diameter of the hose equal to the internal diameter of the insulation) which would hold the insulation very well and make it easy to replace in years to come.

I had a consultation with Odling Engineering (vintage Sunbeam experts) this afternoon and we arrived at a very similar idea re. pipe insulation and split hose. Great minds . . .
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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Rowana » Sun Jan 23, 2011 1:56 pm

I have a similar join on Rowana, but my problem was that the lead of one of my mooring lines was rubbing on the rubber, if you see what I mean.

My solution was to buy a length of 1.5 inch plastic domestic drain pipe from B&Q, cut a bit off & split in lengthways. I then opened this out and pushed it over the rubber bit. Now if that bit gets worn, I can just fit another bit.


So the same as your proposal, really. Great minds Etc., Etc. . . . . . . ( Yet again ! !)
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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Hollandia » Thu Feb 10, 2011 11:33 pm

Your illustration is amazing, with talent like that you should be able to fit something. Our own solution to a similar problem was post-industrial, heavy-duty electrical conduit. It is bombproof stuff and you can drill or tool it as needed--we used a bandsaw and file or sureform rasp to contour fit; some spax screws drilled through from the inside of the dinghy... and where the ends are open you can either pack it w/ pipe insulation or blast some expanding foam in for added flotation... Pretty much everyone who sees our dinghy admires it, plus it is this amazing orange-red colour and looks smart as paint, as Long John says.

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Clyde_Wanderer » Sat Oct 29, 2011 10:58 pm

I know its a long time ago Nick but I just saw this post tonight.
This is what you are looking for.
I bought various seals and extrusions from them a few years ago and they are good to deal with.
Different applications extrusions have different names, ie the window rubber which uses an infil strip on the outside is called "Claytonrite" and the plastic/rubber U section extrusion for fitting over sharp edges is called "Titanfast"
C_W
http://www.sealsdirect.co.uk/shopping.a ... entId=5#38

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby ubergeekian » Sun Oct 30, 2011 1:30 pm

Clyde_Wanderer wrote:I bought various seals and extrusions from them a few years ago and they are good to deal with.

http://www.sealsdirect.co.uk/shopping.a ... entId=5#38


Indeed they are. When I needed new seals for Jumblie seven Lewmar portlights they suggested that I use 8mm diameter neoprene (£2 per window) rather than the official seals, which they also sell (£38 per window).
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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Nick » Mon Oct 31, 2011 10:00 pm

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Just to let everyone know what happened . . . . I used pipe insulation, drilled holes at 4" intervals round the flange and cabletied the pipe insulation on with smallish cable ties. I then slit 4.5m of 1.5" ID braided hose and fed it onto the foam in a oner.

The result? The gentlest way I have ever come alondside another craft - totally forgiving. Highly recommended. No perceivable decay/aging so far.
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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Clyde_Wanderer » Thu Nov 17, 2011 10:18 pm

I assume you mean Armaflex the grey polypropylene foam stuff with the slit down one side?
If so it is handy stuff that has many uses, including forming stringers and strenghteners when laminating also useful as back cushioning on safety lines around the cockpit, cheap too.

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Arghiro » Fri Nov 18, 2011 11:48 pm

What is a "oner"?

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby marisca » Sat Nov 19, 2011 12:10 am

Arghiro wrote:What is a "oner"?


noun
British informal

1 something denoted or characterized by the number one:I did the last drink in a oner
one pound or one hundred pounds sterling:to reclaim my car is gonna cost a oner
2 archaic a remarkable person or thing.

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Arghiro » Sat Nov 19, 2011 11:42 pm

marisca wrote:
Arghiro wrote:What is a "oner"?


noun
British informal

1 something denoted or characterized by the number one:I did the last drink in a oner
one pound or one hundred pounds sterling:to reclaim my car is gonna cost a oner
2 archaic a remarkable person or thing.



That doesn't fit the context. "fed it onto the foam in a oner."

Never mind, I'm used to needing sub-titles on here. :D

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby marisca » Sun Nov 20, 2011 12:26 am

Arghiro wrote:
That doesn't fit the context. "fed it onto the foam in a oner."

Never mind, I'm used to needing sub-titles on here. :D


If you read what was wrote. He attached the foam pipe insulation and then slid split braided hose over it "in a oner" i.e. one length of hose pushed over the insulation in one go. Or anyway that is what I understand.

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Arghiro » Sun Nov 20, 2011 11:33 pm

Ahh, thanks. It can make sense then.

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Re: Dinghy refurbishment - what to do about the rubbing stra

Postby Nick » Mon Dec 12, 2011 5:57 pm

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Jings, crivens and help ma boab, hev ye no heard o' a oner afore?
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