precision polymer engineering ltd a technical guide to elastomer compounds and chemical compatibility the contents of this document are confidential copyright limited ppe no use all or any part designs drawings concepts representations specifications ideas set out in can be reproduced without prior written permission nor may it made available third party with view such carrying work based upon 2006 rights reserved 1 introduction 4 2 why 5 3 services 6 component design computer modelling materials consultancy testing 7 online seal selection resource for engineers 9 perlast high performance perfluoroelastomers 11 how select correct 12 compound types & typical properties 14 material temperature comparison graph 18 industry specific elastomers 19 8 trade names 22 23 10 terminology definitions 47 o ring groove guidelines 52 moulding tolerances 54 13 international standard sizes 57
