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Rotomould recycling
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Rupert View Drop Down
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Topic: Rotomould recycling
    Posted: 29 May 18 at 6:11pm
The 3 different layers cause problems for recycling, or used to.
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Sam.Spoons View Drop Down
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Posts: 3401 		Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 18 at 9:17pm
Originally posted by boatshed

If the rotamould is made of polypropylene, then a recycler will pay around is around 3p per kg at their gate.

So a 70kg hull is worth £2.10 and you'd have to deliver it.  Basically, a negative cost.

Or you can leave it in the nettles until the price of oil rises, then the numbers may work.  

I was meaning profitable for them....... Within reason I would deliver a boat to them if they would recycle it and they could keep the £2.10....... Except I don't have any rotomould boats.......

So we need to revert to wooden boats built with copper nails and hide glues. Oh and cotton sails (though ally masts would be acceptable as aluminium is one of the most recyclable materials I can think of.... Now rgete's calling for the smartarse brigade, it's been a long day and I'm just about to pour the second pint....)  LOL
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boatshed View Drop Down
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Posts: 457 		Post Options Post Options   Quote boatshed Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 18 at 9:55pm
Originally posted by Sam.Spoons


Originally posted by boatshed

If the rotamould is made of polypropylene, then a recycler will pay around is around 3p per kg at their gate.
So a 70kg hull is worth £2.10 and you'd have to deliver it.  Basically, a negative cost.
Or you can leave it in the nettles until the price of oil rises, then the numbers may work.  

I was meaning profitable for them....... Within reason I would deliver a boat to them if they would recycle it and they could keep the £2.10....... Except I don't have any rotomould boats.......
So we need to revert to wooden boats built with copper nails and hide glues. Oh and cotton sails (though ally masts would be acceptable as aluminium is one of the most recyclable materials I can think of.... Now rgete's calling for the smartarse brigade, it's been a long day and I'm just about to pour the second pint....)  LOL


All metal should be stripped off the boat and sold separately. Aluminium masts are valuable whereas carbon stick worth booger all
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Chris 249 View Drop Down
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Posts: 2041 		Post Options Post Options   Quote Chris 249 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 4:51am
I've got some rotomolded polyethylene Windsurfers that are now about 40 years old and still going well. If they are protected from UV do they have a shorter lifespan than 'glass or wood?
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423zero View Drop Down
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Posts: 3420 		Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 6:46am
Plastic pipes have a usable life of 100 years.
Polypropelene can be melted to a liquid repeatedly and injection moulded.
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piglet View Drop Down
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Posts: 514 		Post Options Post Options   Quote piglet Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 7:52am
I've just read the RYA article on what we as boaters should be doing to reduce our plastic footprint.
Avoid single use plastic was the 1st point.
That's rotomoulds out then.
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Oli View Drop Down
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Posts: 1020 		Post Options Post Options   Quote Oli Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 7:57am
Originally posted by boatshed

If the rotamould is made of polypropylene, then a recycler will pay around is around 3p per kg at their gate.

So a 70kg hull is worth £2.10 and you'd have to deliver it.  Basically, a negative cost.

Or you can leave it in the nettles until the price of oil rises, then the numbers may work.  

hopefully owners will take this end of life value into account in the overall cost of the boat and not abandon them to the nettles, perhaps the manufacturers should offer a recycling incentive when purchasing.
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423zero View Drop Down
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Posts: 3420 		Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 8:34am
What rotomoulded boats are abandoned ?
Their are none at my club, oldest boats are Toppers, but these aren't rotomoulded and are a different plastic ? Well, that's what I was led to believe.
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Riv View Drop Down
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Posts: 353 		Post Options Post Options   Quote Riv Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 9:04am
Eventually polypropylene boats do degrade and do have accidents. I've just had to bribe someone to take away a Topper that was attacked by antifreeze (still worked, just looked horrid). I have another one that was dropped on a sharp edge and has a damaged gunwale (big chunk out). The RYA have just done an inspection of our training boats and are keen on a good appearance, so the one with the chunk out is no longer being used. (Good otherwise). 

Any one want a free hull in South Devon?

I had a Wayler School board that someone dropped on a sharp edge (polyprop') and was economically un-repairable at the time. That had to be cut into small pieces and taken surreptitiously to the local tip.

Having listened to the BBC's Plastic Fantastic radio program series, it is clear that any sort of mixed plastic is very difficult to recycle so all the three layer boats maybe impossible to recycle economically.

In an ideal world I would prefer to buy aluminium hulls like the Grumman Canoes so beloved in the US and Canada. Totally recyclable and dead easy to repair. Last forever.  However I expect that the aesthetics of the material are against it here, though if combined with wooden trim and decks this maybe mitigated.
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Posts: 121 		Post Options Post Options   Quote Old bloke Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 18 at 9:37am
Riv,in most of South Devon most of the non recycling rubbish ,and the non recyclable recycling is incinerated and generates a fair bit of electricity. So you can cut your boats up into bits and feed them into your black bin with a fairly clear conscience
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