LINER MATERIALS

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<
PFA
Perfluoroalkoxy
»    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