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Semiconductor Seal

Darcoid works with Parker Hannifin’s Engineered Materials Group, a leading manufacturer of o-rings, seals and sealing systems for over 50 years, offers the very latest in perfluorinated elastomer technology — Parofluor ULTRA. These new materials represent the highest level of performance in our Parofluor Series. They are formulated specifically to seal — and keep on sealing — under the most extreme physical conditions. ULTRA materials offer improved compression set resistance, high temperature capabilities, and broad chemical resistance that allow them to outperform and out seal typical perfluorinated elastomers in:



Parofluor ULTRATM materials, whether formed into O-rings, molded shapes, or composite seals, can resist higher temperatures and a broader range of aggressive chemicals than typical perfluorinated elastomers. These materials are compounded to resist compression set and retain their resiliency in the most demanding environments. Sealing products made with Parofluor ULTRA materials are available in a broad range of standard and custom configurations, including:


For applications that do not require the unique properties of perfluorinated elastomers, we offer a complete selection of elastomeric and/or plastic sealing compounds, including fluorocarbon, HiFluor, silicone, fluorosilicone, nitrile, HNBR, Neoprene, butyl, polyurethane and TFE/propylene AflasTM.


Parofluor ULTRA elastomers are next generation sealing materials, representing the very latest in perfluorinated elastomer technology. These materials are proven performers, and have been tested for thousands of hours in extreme, real-world applications. And they have our unique combination of experience and innovation built right in.


Parofluor ULTRA features include:

• Ultra high temperature resistance up to 320°C/608°F

• Ultra high purity (see Figure 2)

• Ultra broad chemical resistance (see Table)

• Excellent retained resiliency and compression set resistance

Semiconductor Seal

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