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Polypac Contamination Seal — Reliable Anti-Contaminant Seals

Polypac Contamination Seal offers durable, customized sealing solutions to prevent particle and fluid contamination in hydraulic systems. Advanced materials, strict testing, and tailored design ensure long-lasting performance in harsh environments.

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Product Description

Polypac Contamination Seal — Protect Your Systems

Polypac Contamination Seal is designed to keep contaminants out and performance in. Built for hydraulic, pneumatic, and rotating equipment, this seal prevents dust, dirt, water and particles from entering critical components—reducing downtime and prolonging equipment life.

Key Benefits

Superior contamination resistance for longer service life
Wide material selection: filled PTFE, NBR, FKM, silicone, EPDM, FFKM
Custom designs to fit special working conditions
Precision manufacturing and strict quality control

Why Polypac Stands Out

Founded in 2008, Polypac combines industry experience with scientific partnerships to deliver reliable sealing solutions. Our 10,000+ m² facility and advanced production/testing equipment let us maintain high consistency and fast turnaround. We began with filled PTFE seals and now offer a full range of O-rings and contamination seals tailored to demanding environments.

Materials and Applications

We use proven materials like bronze-filled, carbon-filled, graphite and MoS₂-filled PTFE for low-friction, wear-resistant seals. Elastomers such as NBR, FKM, silicone, EPDM and high-performance FFKM are available for chemical and temperature resilience. Typical applications include hydraulics, pumps, gearboxes, medical devices and industrial automation.

Customized Solutions

Polypac excels at customization. Whether you need a small batch for a prototype or large volumes for production, our engineers work with you to specify material, tolerance and geometry to meet contamination control needs without overcomplicating the design.

Trust and Testing

Every Contamination Seal undergoes rigorous inspection and performance testing to ensure it meets your specification. Our collaborations with universities and research institutes keep our designs modern and reliable.

Choose Polypac Contamination Seal for proven protection against contaminants and long-term reliability. Contact us for samples, drawings, or a custom quote.

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Question you may concern

What is the purpose of the metal spring in a rotary shaft seal?

The garter spring in a shaft seal (e.g., FSKR, SPGO types) provides a constant radial force on the sealing lip. This ensures consistent contact with the rotating shaft, compensating for minor wear, eccentricity, and vibration to prevent lubricant leakage.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

Can I reuse a seal?

We strongly recommend never reusing seals. Once compressed and used, a seal takes a "set" and its elastic properties are degraded. Reusing it almost always results in a leak. Always install a new seal during any maintenance or repair.

What does "AS568" mean?

AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.

If you have any other questions, please write email to us or call us , we will reply you ASAP.

Get in Touch

PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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