FFKM Kalrez 8475 O-Ring, Size: -009
Material: FFKM Kalrez 8475 O-Ring
Size: AS568 -009 O-Ring
Part Number: KP8475-OR-009
Kalrez® (Dupont)
8475
FFKM (Perfluoroelastomer)
70
Shore A
Color: White
Detailed Description
KP8475-OR-009 is a White, 70 Shore A, FFKM (Perfluoroelastomer) O-Ring made from Kalrez® (Dupont). KP8475-OR-009 is AS568 size -009 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 5.28mm (Inside Diameter (ID)).
Material: FFKM Kalrez 8475 O-Ring
Size: AS568 -009, 1.78mm CS X 5.28mm ID (0.070" CS X 0.208" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | KP8475 |
| Brand | Kalrez® (Dupont) |
| Material | FFKM (Perfluoroelastomer) |
| Color | White |
| Durometer | 70 Shore A |
| High Temperature | 300 °C / 572 °F |
| Low Temperature | -15 °C / 5 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -009 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 5.28 mm / 0.208 in |
DuPont™ Kalrez® 8475 (KP8475) is a white perfluoroelastomer (FFKM) with a nominal hardness of 70 Shore A, specifically developed for semiconductor oxidation and diffusion applications where ultra-low outgassing and long-term thermal stability are critical. This material exhibits very low outgassing at elevated temperatures and excellent resistance to dry gas process environments, supporting consistent sealing performance in high-purity vacuum systems. Kalrez® 8475 delivers improved compression set behavior and strong seal force retention, with a recommended maximum service temperature of 300°C (572°F). Ultrapure post-cleaning and packaging are standard, making it well suited for contamination-sensitive processes.
Kalrez® 8475 is commonly used for O-rings and gaskets in quartz tube seals, gas feedthroughs, bell jars, plenums, and other low-stress, low sealing force applications found in oxidation and diffusion furnaces. Its mechanical properties favor static sealing locations where cleanliness, low extractables, and thermal endurance are prioritized over high extrusion resistance. This compound is selected when reduced outgassing and stable performance at sustained high temperatures directly impact process yield. Canyon Components offers equivalent white, low-outgassing FFKM materials engineered for semiconductor oxidation, diffusion, and high-temperature vacuum sealing applications.
Common relevant keywords:
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