Chemraz O-Rings

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chemraz o-rings

Chemraz® – (Green Tweed’s trademark name) Chemraz® is the Green Tweed version of Kalrez®, Simriz®, Markez® or FFKM.  It is also a member of the perfluoroelastomer polymer family—polymers of three or more monomers in which all hydrogen positions have been replaced with fluorine. This complete state of fluorination results in outstanding resistance to heat and most chemicals and solvents.

You can find additional technical information related to this and other materials regarding chemical compatibility, resistance to abrasion, suitability for dynamic or static applications, temperature operating ranges, longevity, and other factors on our Technical Information pages.

Chemraz® Compounds & Physical Properties

Green Tweeds Chemraz® Products 504 505 510 514/517 526 555
Low Temp -22°F -22°F -22°F -20°F 0°F 10°F
High Temp 446°F 446°F 446°F 425°F 500°F 600°F
Features  Extremely broad range of chemical resistance Broadest range of chemical resistance Shore A hardness of 90-Broad range of chemical resistance White for applications where contamination from carbon black must be prevented Resistance to rapid gas decompressions Wider operational band & superior compression set resistance

 

 

 

 

 

 

 

 

 

Green Tweeds Chemraz® Products 562 564/566 600 605

615

SD625
Low Temp -40°F -22°F -4°F 0°F 0°F -4°F
High Temp 445°F 428°F 500°F 500°F 615°F 500°F
Features  Excellent compression set resistance, steam & chemical resistance Exceptional chemical resistance Extremely broad chemical resistance range from a high-density base polymer

High temp. compound, comparable to Chemraz® 505. Great for steam and water

Can handle continuous operating temps up to 615° Combines resilience and sealing force with an elastomer with chemical resistance & low extractable similar to Teflon®

 

 

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