With its broad chemical resistance, Chemraz® 551 is  ideally suited as a universal sealing material for aqueous  semiconductor wafer processing and chemical/DI water  distribution systems.  

Chemraz® 551 provides a significantly wider operational  band and superior compression set resistance than any  other broad range perfluoroelastomer on the market.  With an upper temperature limit of 600°F (316°C), it’s the  elastomer of choice for the most demanding applications  from ozonated DI water to hot sulfuric resist strip.  

Chemraz® 551 is one of Greene Tweed’s many costeffective products and services that increase the reliability  and extend the lifetime of our customers’ equipment in  challenging aqueous conditions while protecting both the  operator and the environment from harmful fluid leaks.

Features and Benefits 

• Broad chemical compatibility 

• High temperature capability (up to 600°F/316°C) 

• Excellent compression set maintains seal integrity in  wide temperature and pressure variations as well as  vibration 

• Breadth of capabilities allows for standardization on  one material and reduces inventory line items 

• Longer and better seal integrity in seal applications 

• Lower overall equipment cost of operation 

Applications 

• Valve seals • Fitting and union seals • Gaskets• Regulator seals • Filter seals • Dispensing seals