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Pharmaceutical Industry

High-Performance Seals for the Pharmaceutical Industry

Close up of pharmaceutical machine during process of synthesis of medicines

Hygienic Production of Pharmaceutical Products Thanks to Sealing Materials With High Purity Standards

The purity requirements for the product and the process are particularly high in the pharmaceutical industry. This requires sealing solutions that reliably prevent contamination and can come into contact with the product without hesitation. The pharmaceutical industry consists of many different applications and processes, all of which have individual requirements. For example, the production of finished pharmaceuticals requires very good chemical resistance of sealing materials to various reactants and solvents. Very low temperatures can occur in the production of vaccines or proteins, as well as in the separation of blood, which requires very cold-resistant seals. Furthermore the sealing products have to withstand CIP/SIP cleaning agents, but must also comply with the hygienic design standards as well as the relevant legal regulations, such as USP Class VI and FDA.

Related Products

Blue wiper


Freudenberg Sealing Technologies offers wipers in various designs with or without metal housing. Their very good wear resistance to dust and abrasion is a special feature of the wipers. Our experts would be happy to advise you on your individual requirements and develop customized solutions for you.

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Beige colored radial shaft seal with integrated stainless steel part.

Radial Shaft Seals

Freudenberg Sealing Technologies offers special designs of radial shaft seals for the pharmaceutical industry, including the Radiamatic® HTS II, the Simmerring® BlueSeal, and the Simmerring® B2PT. Their key feature is their resistance to media and extreme temperatures – the pharmaceutical substances only come into contact with high-performance materials like PTFE and Fluoroprene® XP, which conform to all relevant legal standards. Radial shaft seals are available in various designs, including variants that meet Hygienic Design standards.

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Black round washer with integrated stainless steel part in the middle.

Hygienic Product Line

With the product line for hygienic plants in the process industry, Freudenberg Sealing Technologies offers a unique product portfolio for hygienic applications. This includes not only the Hygienic Pressure Seal and Hygienic Forseal, which are made of the premium PTFE Quantum®, but also dead-space-free radial seals for seat valves, radial shaft seals such as the Radiamatic® HTS II 9539 VL with an advanced sealing lip, shaft seals, butterfly valve seals, Hygienic Usit® rings and aseptic O-rings.

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Black round O-ring.


O-rings are used as universal sealing elements in almost all applications and offer an excellent price-performance ratio. At Freudenberg Sealing Technologies O-rings can be manufactured in all elastomer materials, such as 70 EPDM 291, 75 Fluoroprene® XP 41 or 75 Simriz® 494. These have all relevant approvals for the pharmaceutical industry. In addition to round O-rings, oval, rectangular, semicircular and x-shaped cross-sections are also possible.

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White hygienic bellow.


PTFE bellows can be used to protect moving machine parts, such as the punches in tablet presses. For the pharmaceutical industry, we use high-quality PTFE materials that have high media and temperature resistance and comply with all relevant regulations. Depending on the application, we also offer bellows made of elastomer materials, such as VMQ. Please contact our experts to discuss customized designs adapted to meet your individual requirements.

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Profiles made of high-performance materials for the pharmaceutical industry

Profiles and Inflatable Seals

Profile seals from Freudenberg are resistant to high temperatures, cleaning agents and other media such as water, steam, disinfectants, alkaline solutions and acids. The most important features are durability and resistance. Freudenberg Sealing Technologies also offers high-quality pneumatically activated seals made of various high-performance materials that have all relevant approvals in the pharmaceutical industry and perform extremely well due to their resistance to chemicals.

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Fluid transfer tubing for pharmaceutical, lab, and bioprocessing applications: PharmaFocus® Premium and HelixMark® are high purity reinforced, non-reinforced, and peristaltic pump silicone tubing. Thermoplastic elastomer tubing HelixFlex™ is sealable, weldable, and sterilizable. Available in a wide range of product types and sizes. Manufactured according to GMP, ISO 13485 and certified cleanrooms in the United States, Germany, and Ireland.

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Molded Component

Molded Components

X & Y connectors, T-molded liners, overmolded sanitary ends, silicone stoppers, silicone clamp gaskets and many more: Freudenberg Medical manufactures components in thermoplastic and platinum-cured silicone for pharmaceutical applications. Advanced biocompatibility testing ensures compliance with the highest biomedical and pharmaceutical standards.

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Highlight Materials

White O-ring

White High-Performance Materials

The new white high-performance material 70 EPDM 38596 from Freudenberg Sealing Technologies has been developed especially to meet the high demands of the process industry. The material is well suited for manufacturing O-rings and sealing rings with simple cross-sections. It not only has excellent mechanical properties, but also very good resistance to standard cleaning media and steam. The very low extractables values are also an advantage that the material 70 EPDM 38596 offers.

Simriz® perfluorelastomers (FFKM) are high-end materials for the pharmaceutical industry, offering the highest degree of fluorination. Simriz® is the material of choice when other elastomers like EPDM and FKM (including high-fluorinated types) reach their limits in extremely demanding applications. This includes very high temperatures and very aggressive media. Freudenberg Sealing Technologies offers specially developed Simriz® materials like the white 75 Simriz® 38581 that comply with various legal regulations such as FDA standards.

Composing of two round O-rings in blue and black.

Fluoroelastomers for the Pharmaceutical Industry

The universal material Fluoroprene® XP is ideally suited for use with CIP/SIP cleaning processes and fatty products, where EPDM is not applicable any more. In-house extractable studies prove its above-average purity on the basis of a negligibly low proportion of migrated substances. In addition, the two variants 75 Fluoroprene® XP 41 and 85 Fluoroprene® XP 43 conform to USP Chapter 87 and 88. The black FFKM material 75 Simriz® 494 is also an ideal candidate for the pharmaceutical industry due to its outstanding temperature and media resistance, excellent purity and legal compliance.

Composing of two round black seals – a clamp seal and an O-ring.

High-Performance EPDM Compounds

The materials 70 EPDM 291 (black), 70 EPDM 38596 (white) and 70 EPDM 253815 (white) were developed for the process industry. All materials show excellent CIP/SIP resistance and have all relevant conformities and approvals. All white materials from Freudenberg Sealing Technologies are outstandingly suitable for the pharmaceutical industry due to the absence of softeners. This is also evidenced by a corresponding benchmark.

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    Related Documents

  • Brochures 66-plus 67-minus


    Sealing Solutions for Applications in the Pharmaceutical Industry

    The purity requirements for the product and the process are particularly high in the pharmaceutical industry because the synthesis of pharmaceuticals must prevent germs from entering the product and unwanted by-products from being produced.

    English | PDF | 5304 KB


    Sealing Solutions for Drive Shafts in the Process Industry

    Due to the many different and often unique features of the systems and processes in the pharmaceutical, food and chemical industries, a sealing system with drive shafts can be challenging.

    English | PDF | 3957 KB


    Product Line for Hygienic Plants in the Process Industry

    Freudenberg Sealing Technologies develops innovative sealing solutions with international industry-specific approvals, especially according to hygienic design standards. All products are resistant to the process medium itself and to all cleaning media used in CIP/SIP processes.

    English | PDF | 2930 KB


    Fluoroprene® XP for the Pharmaceutical Industry

    Freudenberg Sealing Technologies has tested in its own extractables study whether the material Fluoroprene XP is suitable for use in the pharmaceutical industry and whether it meets the high purity requirements. For this purpose, two fluorinated material variants were selected and compared with two EPDM materials.

    English | PDF | 17675 KB

  • Solutions Sheets 66-plus 67-minus


    70 EPDM 38596 - New White High-Performance Material for the Process Industry

    The new white high-performance material 70 EPDM 38596 from Freudenberg Sealing Technologies has been developed especially to meet the high demands of the process industry.

    English | PDF | 210 KB


    Clamp Seals for the Process Industry

    Clamp seals make fast and secure flange connections in continuously operating equipment. Due to their symmetrical geometry, the clamp connections can be mounted and re-separated very easily.

    English | PDF | 413 KB


    Extractables EPDM-Benchmark

    In food and pharmaceuticals industries production today, everything revolves around the issue of purity.

    English | PDF | 518 KB


    Hygienic Usit®

    The Hygienic Usit® from Freudenberg was developed especially for the process industry and is setting completely new purity standards.

    English | PDF | 328 KB


    Fluoroprene® XP - The premium all rounder for the process industry

    A wide variety of applications that are impressive right down the line: Fluoroprene® XP is the universal sealing material for steam sterilization, aggressive CIP/SIP media and high-fat concentrations.

    English | PDF | 3261 KB

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