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Hairyloon
Joined: 20 Nov 2008 Posts: 15425 Location: Today I are mostly being in Yorkshire.
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vegplot
Joined: 19 Apr 2007 Posts: 21301 Location: Bethesda, Gwynedd
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Hairyloon
Joined: 20 Nov 2008 Posts: 15425 Location: Today I are mostly being in Yorkshire.
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Nick
Joined: 02 Nov 2004 Posts: 34535 Location: Hereford
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jamanda Downsizer Moderator
Joined: 22 Oct 2006 Posts: 35056 Location: Devon
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Hairyloon
Joined: 20 Nov 2008 Posts: 15425 Location: Today I are mostly being in Yorkshire.
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Andrea
Joined: 02 May 2005 Posts: 2260 Location: Portugal
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OtleyLad
Joined: 13 Jan 2007 Posts: 2737 Location: Otley, West Yorkshire
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Mistress Rose
Joined: 21 Jul 2011 Posts: 15834
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Posted: Fri Apr 12, 13 7:53 am Post subject: |
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As vegplot and others have said, not all plastics are thermoplastic, and some release toxic gases when heated. If you are thinking of welding or heating plastic, make sure you know what it is, and check it on the internet.
You need to know exactly what plastic you have and match ones with the same melting point. Anything you make by remelting is likely to have lower physical properties if it is mixed, and possibly even if just remelted. If you make something entirely of old milk containers, they should be more or less the same, but even there the formulation may be different causing different melting points.
Some things, plastic bags in particular, can be made up of layers of different plastics, and they are virtually impossible to separate and reuse.
Yes you can chop up plastic and embed it in epoxy; you can do the same with wood, metal or anything else too. Many years ago we used to make something at work called 'silencer gunk' which was epoxy mixed with zinc powder. |
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Hairyloon
Joined: 20 Nov 2008 Posts: 15425 Location: Today I are mostly being in Yorkshire.
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cassy
Joined: 04 Feb 2008 Posts: 1047 Location: South West Scotland
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OtleyLad
Joined: 13 Jan 2007 Posts: 2737 Location: Otley, West Yorkshire
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Bodrighy
Joined: 15 Aug 2008 Posts: 2157 Location: Near Devizes
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Bodrighy
Joined: 15 Aug 2008 Posts: 2157 Location: Near Devizes
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Hairyloon
Joined: 20 Nov 2008 Posts: 15425 Location: Today I are mostly being in Yorkshire.
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