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    One stop plastic shop - Polycarbonate tubes

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    david f
    AMS Treasurer

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    One stop plastic shop - Polycarbonate tubes

    Post  david f on Wed Sep 24, 2014 9:28 am

    If you really must have a clear tube best to go for polycarbonate, perhaps:

    https://www.theonestopplasticsshop.co.uk/polycarbonate-tubes-c-982.html?page=2&sort=3a&osCsid=pe7uo6laamtnmdg71905falo42

    David
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    John Wrennall
    AMS member

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    Re: One stop plastic shop - Polycarbonate tubes

    Post  John Wrennall on Mon Jul 04, 2016 4:56 pm

    Can anyone assist?

    I have recently obtained some pieces of transparent plastic of unknown provenance.
    One piece is known, it has a Lexan sticker on it.

    Does anyone know a sure fine way to determine if my other sheets are acrylic or poly-carbonate.

    I already know from bitter experience that Acrylic cracks easily and I have some more bulkheads to fabricate.

    regards
    John

    timgarrod
    AMS Website Webmaster

    Posts : 165
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    Re: One stop plastic shop - Polycarbonate tubes

    Post  timgarrod on Mon Jul 04, 2016 5:35 pm

    Cheers David,

    Will come in handly.
    avatar
    merriman
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    Re: One stop plastic shop - Polycarbonate tubes

    Post  merriman on Mon Jul 04, 2016 10:55 pm

    John Wrennall wrote:Can anyone assist?

    I have recently obtained some pieces of transparent plastic of unknown provenance.
    One piece is known, it has a Lexan sticker on it.

    Does anyone know a sure fine way to determine if my other sheets are acrylic or poly-carbonate.

    I already know from bitter experience that Acrylic cracks easily and I have some more bulkheads to fabricate.

    regards
    John

    Acrylic -- you can't cut it with a knife, it will chip. Heat it and it will smell 'sweet'

    Lexan -- you can carve it with a knife.

    David
    avatar
    John Wrennall
    AMS member

    Posts : 154
    Join date : 2011-11-16
    Age : 70
    Location : Leyland

    Re: One stop plastic shop - Polycarbonate tubes

    Post  John Wrennall on Tue Jul 05, 2016 9:32 am

    Thank you for that info David.

    Now where have I put my old Whittling knife..

    John
    avatar
    bwi
    AMS member

    Posts : 76
    Join date : 2015-01-17
    Location : Belgium

    Re: One stop plastic shop - Polycarbonate tubes

    Post  bwi on Tue Jul 05, 2016 5:55 pm

    John Wrennall wrote:Can anyone assist?

    I have recently obtained some pieces of transparent plastic of unknown provenance.
    One piece is known, it has a Lexan sticker on it.

    Does anyone know a sure fine way to determine if my other sheets are acrylic or poly-carbonate.

    I already know from bitter experience that Acrylic cracks easily and I have some more bulkheads to fabricate.

    regards
    John

    Don't know this is the best way to test it :-)

    Grtz,
    Bart


    https://www.youtube.com/watch?v=Hsls5ZPCUnE



    avatar
    John Wrennall
    AMS member

    Posts : 154
    Join date : 2011-11-16
    Age : 70
    Location : Leyland

    Re: One stop plastic shop - Polycarbonate tubes

    Post  John Wrennall on Thu Jul 07, 2016 4:16 pm

    Bart/David M

    Nice Video - anything that survives those tests, I would trust.

    I have finally decided to cut off a sample piece from each sheet and then try to carve some slivers off each followed by a gentle caress with a blowlamp and finally an intimate introduction to a 1 LB (imperial) ball peen hammer. Methinks that safety goggles would be advisable...

    John
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    merriman
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    Re: One stop plastic shop - Polycarbonate tubes

    Post  merriman on Thu Jul 07, 2016 8:23 pm

    John Wrennall wrote:Bart/David M

    Nice Video - anything that survives those tests, I would trust.

    I have finally decided to cut off a sample piece from each sheet and then try to carve some slivers off each followed by a gentle caress with a blowlamp and finally an intimate introduction to a 1 LB (imperial) ball peen hammer. Methinks that safety goggles would be advisable...

    John

    Ain't science wonderful?

    "SCIENCE!!!!...."

    David

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    Re: One stop plastic shop - Polycarbonate tubes

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