WEA R AND TE A R A firm specialising in precast concrete work were ucing inflated canvas-covered rubber tubes_known as pneumatic cores to form holes in cast concrete slabs, but the wear and tear on the canvas was SO severe that a more durable covering had to be found. They required a fabric that would not stretch when the cores were inflated, and which would not be effected by chemical action in the wet con- crete mix. In addition the material had to be exceptionally resistant to the abrasion that occurred when the cores were deflated and withdrawn from the cast slab. The firm took the problem to LC.I Leathercloth Division whose technical service department suggested the use of 'Vynide'~a tough, pliable upholstery material consisting of a textile fabric coated with a plastic-polyvinyl chloride: To do the job the division produced a reinforced type of 'Vynide' with a specially smooth surface. This fulfilled all requirements and increased the life of the cores from three months to nine months: ICI IMPERIAL CHEMICAL INDUSTRIES (NZ) LTD: DONT RISK INFECTION KEEP ZA Ln AVAILABLE The ExtrA strong EVeRywhere 502_ EXTRA SaFE bottLe 32 ExTrA GAK 369 Value Antiseptic Distributed by Salmond & Spraggon Ltd., Wellington. ZAL NTSEPTI
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https://paperspast.natlib.govt.nz/periodicals/NZLIST19550225.2.38.1
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New Zealand Listener, Volume 32, Issue 813, 25 February 1955, Page 17
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203Page 17 Advertisement 1 New Zealand Listener, Volume 32, Issue 813, 25 February 1955, Page 17
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Copyright in the work University Entrance by Janet Frame (credited as J.F., 22 March 1946, page 18), is owned by the Janet Frame Literary Trust. The National Library has been granted permission to digitise this article and make it available online as part of this digitised version of the New Zealand Listener. You can search, browse, and print this article for research and personal study only. Permission must be obtained from the Janet Frame Literary Trust for any other use.
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