CHEMICAL RESISTANCE AND LINER SELECTION GUIDE
{Chemical Resistance charts}
FUSIBOND offers by far the broadest liner selection of anyone
in the industry. This allows you to choose the plastic lining
for your plastic lined pipe and plastic lined fittings that is
most cost effective under your particular operating conditions.
Polypropylene (PP) is the least expensive of all our liner systems. It has proven chemical resistance in a wide variety of applications and because it's a Copolymer can be used from '-20°F (-29°C) to 225°F (107°C). Mechanical properties are good and tensile strength is generally in the 4000 to 4500 PSI range.Metal is not vented.
Polyvinylidene Fluoride (PVDF) has excellent mechanical properties and is resistant to most chemicals. It's temperature range is -20°F (-29°C) to 275°F (135°C). Tensile strength is 4500 to 6500 PSI. Metal is not vented.
EthyleneChlorotrifluoroEthylene (ECTFE) is a Fluoropolymer with exceptional properties. It has by far the best combination of chemical resistance and toughness of any lining we offer. It's superior where temperature cycling, mechanical stress, abrasion, or permeation are a problem. Temperature range -20° F (-29°C) to 300°F (149°C). Tensile strength is typically in the 6000 to 7000 PSI range. Metal Is not vented.
Ethylenetetrafluoroethylene (ETFE) is a fluoropolymer with superior physical properties and chemical resistance approaching that of PTFE. Its excellent where high pressure, vacuum, or cold flow is a problem. Temperature range -20°F (-29°C) to 300°F (150°C). Tensile strength approximately 6700 PSI. Metal is not vented and fittings are Fusion Bonded.
Polytetrafluoroethylene (PTFE) Is virtually inert to all chemicals except elemental fluorine and molten alkali metals. Over 300°F (149°C) there is no other liner choice. PTFE is softer and has less strength for a given thickness than our other liners so it requires special design considerations. PTFE because of its microporosity, has a higher gas permeation rate which can be
improved by increasing the liner thickness, which also helps its overall strength. Special attention to piping alignment and torquing of flange bolts will keep creep or cold flow to a minimum. Temperature range -20° F (29°C) to 450°F (232°C). Tensile strength approximately 3000 PSI. Metal requires venting.
Polyfluoroalkoxy (MPFA or PFA) has the same corrosion resistance but is tougher mechanically and does not creep or cold flow like PTFE. Temperature from -20F (-29C) to 500°F (260°C). Tensile strength is 4000 to 4500 PSI. Metal requires venting per ASTM F-1545. However due to superior permeation resistance, it can be furnished unvented.
