PRODUCT DESCRIPTION
FLS-7750W is a high-performance, white-grade perfluoroelastomer (FFKM) engineered specifically for semiconductor wet etching, chemical processing, and petrochemical applications. This material delivers outstanding resistance to aggressive acids, bases, and high-temperature steam. Capable of resisting over 1,800 chemical substances, FLS-7750W provides exceptional sealing integrity and stable physical properties in demanding fluid-handling environments.
FFKM FEATURE & BENEFITS
Reliable Thermal Tolerance: Rated for maximum continuous use up to 250°C.
Universal Chemical Protection: Provides an ironclad seal against more than 1,800 corrosive chemical media, including acid/base processes.
Steam and Liquid Optimization: Specifically formulated to withstand structural degradation from high-temperature steam and fluid delivery systems.
Long-Term Sealing Stability: Maintains low compression set values over extended operations, reducing maintenance downtime.
RECOMMENDED APPLICATIONS
Chamber, Lid seals
Fitting Seals
Gas Inlet, Outlet Seals
Valve Seals
RECOMMENDED PROCESS
Chamber
Chemical liquid and vapor delivery (CVD)
Wet Etching & Clean
Control Valve Infrastructure
Comparison Sheet with Kalrez®
Comparison Sheet with Kalrez®
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FFKM Physical Properties
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FLS-7750W
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Kalrez® 6221
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Hardness, Shore A
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73
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70
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Color
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White
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White
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100% Modulus, psi
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654
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1049
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Tensile Strength at Break, Mpa
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10.3
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15.16
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Elongation at Break, %
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191
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150
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Compression Set, % (70hr at 200°C)
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25.2
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27
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Maximum Service Temperature (°C)
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250
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260
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