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Encapsulated O-ring manufacturer and Precision extruder M-Cor Inc. is a leading U.S. producer of high performance sealing products for extreme environments. Extruded profiles are converted into o-rings, Teflon® encapsulated o-rings, camlock gaskets, chemical transport tubing and various other sealing products. With in house tooling capabilities, we are able to immediately respond to customer prototype and production requests. Call 630.860.1150 or Email now for immediate assistance.
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I. Construction Materials: Encap-O-Seal: Teflon® Encapsulated O-Ring
A. Teflon® Encapsulation Types
1. Teflon® FEP fluoropolymer
a. Temperature Range: -450F to +400F see Operational Temperature Range.
b. Universal Chemical Resistance see Chemical Resistance.
2. Teflon® PFA fluoropolymer
a. Temperature range: -450F to +500F see Operational Temperature Range.
b. Improved mechanical and cold flow resistance over FEP.
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B. Standard Elastomer Core Material Types: *see Elastomer Comparison chart for complete list
1. Silicone
2. Viton®
3. EPDM
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Choosing a Teflon® Encapsulated O-Ring for your Application
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When choosing an encapsulated o-ring for extreme sealing, it is important to match chemical resistance properties, mechanical strength at operating temperatures, compression set resistance and cost of material to application parameters. The most important choice is the elastomer core material: Click here for general comparison chart of extruded elastomers that M-Cor Inc. manufactures for conversion into o-rings, gaskets, encapsulated o-rings and chemical hose or tubing. Secondly, choose a Teflon® FEP encapsulation for general applications with operating temperatures of 400 degrees F or choose A TEflon® PFA encapsulation for extreme applications with operating temperatures up to 500 degrees F.
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All elastomers are available in FDA compliant grades
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Common Acids
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Elastomer Recommendation
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Hydrochloric Acid 37% (cold)
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EPT, GFS, EPDM, Viton B, FEPM
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Hydrofluoric Acid (conc) cold
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EPT, GFS, Viton B
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Sulfurous Acid (conc)
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EPT, GFS, Viton B
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Percloric Acid
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EPT, GFS, Viton B
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Nitric Acid (conc)
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EPT, GFS, Viton B
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Hypochlorous Acid
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EPT, GFS, Viton B
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Acetic Acid 30%
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EPT, GFS, Viton B, EPDM, Silicone
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Common Bases
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Elastomer Recommendation
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Ammonia Anhydrous
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EPT, GFS, EPDM Viton B, FEPM
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Sodium Hydroxide
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EPT, EPDM, FEPM
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Potassium Hydroxide
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EPDM, FEPM
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Calcium Hydroxide
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ALL
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References:
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Solvents
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Elastomer Recommendation
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Methyl Ethyl Ketone
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EPDM
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Acetone
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EPDM
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Toluene
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EPT, GFS, Viton B
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Turpentine
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EPT, GFS, Viton B
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Hexane
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EPT, GFS, Viton A, Viton B
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Benzene
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EPT, GFS, Viton B
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http://www.aflas.jp/english/index.shtml
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http://en.wikipedia.org/wiki/Acids
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http://en.wikipedia.org/wiki/Solvents
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http://en.wikipedia.org/wiki/Base_%28chemistry%29
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Viton® is a registered trademark of DuPont Performance Elastomers
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Plant: M-Cor Inc. | 3405 Byron Rd. | Helena,MT. USA |59602
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Offices: M-Cor Inc. | 227 James St. | Bensenville,IL.USA | 60106
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M-Cor, Inc.Copyright 2001-2008 Teflon® is DuPont registered trademark.ENCAP-O-SEAL is the copyright property of M-Cor,Inc.’s encapsulated o-ring. Viton® is a reg.trademark of DuPont Performance Elastomers
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![mcorlogo121704-[Converted]](../assets/images/mcorlogo121704-_Converted_.gif "mcorlogo121704-[Converted]")
in extreme sealing applications, it is important to match the elastomer core material to the application parameters in order to increase seal cycle times. All of the elastomers listed below are available with either a Teflon® FEP (
