Lexan Polycarbonate Chemical Compatibility Overview Introduction: This overview shows the chemical resistancy of Lexan polycarbonate sheet. Chemical compatibility of thermoplastics e.g. Lexan is dependent on contact time, temperature and stress (external stress to which the application is subjected). Chemical exposure can result in discoloration, softening, swelling, crazing, cracking or loss of properties of the thermoplastic. The chemicals listed have been evaluated for Lexan according a very stringent GE-test method. This test incorporates exposure to the chemical under defined conditions including temperature (20 and 80 C) and stress (0.5 and 1% strain) for a time period of seven days. The results are listed in the overview using symbols (+ or 0 or -) which are explained below. This information should be used as indicative only. The true chemical compatibility can only be determined under conditions as in the final application. Please contact your local representative in case additional information is required. Acid, Mineral Aldehyde Acid, Organic Halogenated HC Metal & Metal Oxide Salt, Organic Poor; Not recommended-will result in failure or severe degradation. Fair; Found marginal-only for short exposures at lower temperatures or when loss of properties is not critical. Good; Found unaffected in its performance when exposed with regards to time, temperature and stress according the GE-test method. All information, recommendation or advice contained in this document or given by General Electric Company*, USA, or any of its subsidiaries, affiliates or authorised representatives, whether written or oral, is given in good faith, to the best of its knowledge and based on current procedures in effect. The products of General Electric Company or, if applicable, of its subsidiaries or affiliates are sold subject to Conditions of Sale, printed on the back of order acknowledgements, invoice or available upon request. Nothing in this or any other document shall after, vary, supersede or separate to waive any of the Conditions of Sale. Each user of the products shall convince himself, through all available sources (including finished product testing in its appropriate environment) of the suitability of the products supplied for its own particular purpose. Because actual use of the products by the user is beyond the control of General Electric Company, its subsidiaries and affiliates, such use is within the exclusive responsibility of the user. General Electric Company, its subsidiaries and affiliates cannot be held responsible for any loss incurred through incorrect or faulty use of the products. Information, recommendation and/or advice are neither made to infringe on any patents, nor to grant a license under any patent or intellectual property right of General Electric Company or any of its subsidiaries or affiliated companies, nor to grant the right to file for any patent protection. *Company not connected with the English company of a similar name. GE Plastics
research sarah m Dennis terry h Diamond MBBS, FAMAC, is Conjoint Lecturer, Department of MSc, PhD, is Senior Research Fellow, Centre for MBBCh, MRCP, FRACP, is Associate Professor Community Medicine, University of New South Wales, Primary Health Care and Equity, School of Public and a general practitioner, Sydney, New South Wales. Health and Community Medicine, University of New
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