Polypac Silicone O-Rings — Reliable, High-Temperature Seals

Product Overview

Polypac Silicone O-Rings are engineered to deliver reliable sealing where temperature extremes, flexibility and long-term stability matter. Made from high-quality silicone rubber, our O-rings resist aging, UV and ozone, and keep seals effective across a wide temperature range. Ideal for industries that require consistent performance—automotive, food processing, medical devices, electronics and hydraulics.

Key Features

- Wide temperature range: maintain elasticity from low to high temperatures for reliable sealing.
- Soft, flexible material: easy to install and gentle on mating surfaces.
- Excellent weather and ozone resistance: ideal for outdoor and exposed applications.
- Food- and medical-grade options: meet regulatory needs where cleanliness matters.
- Custom sizes and durometers: tailored to your specific equipment and pressure conditions.

Applications

Polypac Silicone O-Rings are suitable for seals in pumps, valves, sensors, connectors, food equipment, medical devices and many hydraulic systems. They shine in applications where temperature swings, UV exposure or frequent flexing would degrade other elastomers.

Why Choose Polypac

Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier focused on seal production, sealing material development and custom sealing solutions for special working conditions. Our factory covers more than 10,000 square meters, with 8,000 m² of production space and advanced testing equipment to ensure consistent quality.

Quality and Customization

Founded in 2008, Polypac started with filled PTFE seals and expanded into a wide range of materials including NBR, FKM, EPDM, FFKM and silicone. We offer molded and extruded O-rings, custom tolerances, and material selection advice to match your operating environment. Long-term partnerships with universities and research institutions keep our R&D at the cutting edge.

Ordering and Support

We provide fast quotation, prototyping and production runs. Our technical team helps select the right silicone grade and hardness, ensuring longer service life and fewer replacements. Contact Polypac for samples, custom quotes, or technical consultation to get the perfect silicone O-ring for your application.