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Freudenberg O-Ring and Seal Materials

Freudenberg Nitrile (NBR) O-Rings Compounds:

Compound Number Datasheet Hardness (Shore A) Low Temp High Temp Color Products
70 NBR 438 PDF 70 +- 5 -25 100 Black Molded parts
85 NBR 436 PDF 88 +- 5 -25 100 Black Molded parts

Freudenberg Hydrogenated Nitrile (HNBR) Compounds:

Compound Number Datasheet Hardness (Shore A) Low Temp High Temp Color Products
70 HNBR 254067 PDF 70 +- 5 -30 140 Green Molded parts
75 HNBR 231142 PDF 75 +- 5 -35 140 Black O-Rings
85 HNBR 216553 PDF 85 +- 5 -25 140 Green Molded parts

Freudenberg Fluorocarbon (FKM) Compounds:

Compound Number Datasheet Hardness (Shore A) Low Temp High Temp Color Products
75 FKM 180497 PDF 75 +- 5 -25 200 Black O-Rings
70 FKM 37508 PDF 75 +- 5 -25 200 Red O-Rings, Molded parts, Diaphragms

Freudenberg Simriz® Perfluoroelastomer (FFKM) Compounds:

Compound Number Datasheet Hardness (Shore A) Low Temp High Temp Color Products
70 Simriz® 491 PDF 70 +- 5 -20 230 Black Molded part, O-Rings
75 Simriz® 494 PDF 75 +- 5 -15 230 Black Diaphragms on request, O-Rings
75 Simriz® 495 PDF 75 +- 5 -15 230 Black O-Rings
75 Simriz® 497 PDF 75 +- 5 -15 325 Black O-Rings
75 Simriz 506 72 +- 5 -15 230 White Molded parts, O-Rings
80 Simriz® 492 PDF 80 +- 5 -10 230 Black Molded parts
85 Simriz® 496 PDF 85 +- 5 -15 250 Black O-Rings

Freudenberg Ethylene Propylene (EP, EPM, EPDM) O-Rings Compounds:

Compound Number Datasheet Hardness (Shore A) Low Temp High Temp Color Products
60 EPDM 290 PDF 65 +- 5 -40 150 Black Diaphragms
70 EPDM 291 PDF 75 +- 5 -40 150 Black Clamp seals, Diaphragms, Hygienic Usit®, Molded parts, O-Rings, CNC machined
70 EPDM 391 PDF 70 +- 5 -40 150 SBlack Profiles, Cords
85 EPDM 292 PDF 85 +- 5 -40 150 Black Molded parts, O-Rings, CNC machined
85 EPDM 302 PDF 85 +- 5 -40 150 Black Molded parts
75 EPDM 253356 PDF 75 +- 5 -30 140 Black Molded parts
70 EPDM 253815 PDF 70 +- 5 -40 150 White Clamp seals, Molded parts, O-Rings, Hygienic Usit®
70 EPDM 217676 PDF 70 +- 5 -40 150 Blue Hygienic Usit®
60 EPDM 334 PDF 60 +- 5 -- -- Black Molded parts
70 EPDM 331 PDF 75 +- 5 -40 150 Black O-Rings
70 EPDM 335 PDF 70 +- 5 -40 150 Black Molded parts
85 EPDM 332 -- 85 +- 5 -- -- Black O-Rings

Freudenberg Silicone (VMQ) Compounds:

Compound Number Datasheet Hardness (Shore A) Low Temp High Temp Color
78 VMQ 166898 PDF 78 +- 5 -- -- Light Blue
75 VMQ 176643 76 +- 5 -- -- Red
70 VMQ 117055 PDF 70 +- 5 -- -- Transparent
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