Laser 140101 Tynemouth |
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Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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Laser 28 - Excellent example of this great design Hamble le rice |
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List classes of boat for sale |
Topper Colours |
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423zero ![]() Really should get out more ![]() Joined: 08 Jan 15 Location: United Kingdom Online Status: Offline Posts: 3420 |
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Most of the development money appears to be being spent on time delayed degradation.
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zippyRN ![]() Far too distracted from work ![]() Joined: 14 Sep 06 Online Status: Offline Posts: 437 |
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looking quickly it seems most of the work on PP degradation is one thin films not the chunky injection moulded strautures like Toppers
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Online Posts: 6662 |
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I don't know what the long term life of the Topper plastics is, but when I worked with PVC decades ago stopping the material just disintegrating on its own without external assistance was a significant problem, requiring all sorts of additives. What's more many of the most effective ones are now illegal. A lot of plastics do their best to reduce themselves back to crude oil given enough time. Go ask a museum curator about conservation of plastics! https://www.getty.edu/conservation/publications_resources/newsletters/pdf/v29n1.pdf
Edited by JimC - 09 Aug 18 at 1:36pm |
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zippyRN ![]() Far too distracted from work ![]() Joined: 14 Sep 06 Online Status: Offline Posts: 437 |
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I think you are pretty much on the mark there ... If an early Topper has been stored properly there is little or nothing to degrade in the hull
wooden or fibre (and foam) + resin composite boats will degrade over time regardess of how well care for ( possible exception beign if they are dry sailed and stored at 'cellar' temperatures (i.e. indoors , reduced temperature range, controlled humidity ) |
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turnturtle ![]() Really should get out more ![]() Joined: 05 Dec 14 Online Status: Offline Posts: 2538 |
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no sssh, there's a conspiracy don't ya know.
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jeffers ![]() Really should get out more ![]() ![]() Joined: 29 Mar 04 Location: United Kingdom Online Status: Offline Posts: 3048 |
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does that put them out of class then.....
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Paul
---------------------- D-Zero GBR 74 |
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RS400atC ![]() Really should get out more ![]() Joined: 04 Dec 08 Online Status: Offline Posts: 3011 |
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Washing up bowls are probably moulded lighter now than 40 years ago!
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turnturtle ![]() Really should get out more ![]() Joined: 05 Dec 14 Online Status: Offline Posts: 2538 |
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well someone has to mention washing up bowls, if only to answer the question above, rather than any derogatory connotation. ;-)
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RS400atC ![]() Really should get out more ![]() Joined: 04 Dec 08 Online Status: Offline Posts: 3011 |
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I wonder how many other plastic mouldings are still on the market unchanged after 40 years?
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piglet ![]() Really should get out more ![]() Joined: 04 Jan 07 Online Status: Offline Posts: 514 |
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Cost option on injection moulding would be fortunes. Toppers are not getting the sales to justify running colour choices. The boat has become a victim of it's innovative production method.
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