LINEAR MATERIALS AND PROPERTIES |
OPERATING TEMPERATURE RANGE |
PTFE Polytetrafluoroethylene |
» Almost universal chemical resistance
» Unique Non Stick properties prevent material build up
» Improves flow characteristics
» Only available in standard shops
» Creeps under pressure<
| |
PFAPerfluoroalkoxy |
» Similar properties to PTFE
» Melt processable
» Expensive
| |
PVDF Polyvinylidene difluoride |
» Selected for bromine and chlorine applications
» Abrasion resistant
» Only readily available in project quantities
| |
PP Polypropylene |
» Abrasion resistant - used instead of rubber lined
» Swollen by Aromatic hydrocarbons
» Unsuitable for most solvent duties
» Poor elongation
| |