Polypac PTFE Encapsulated O-Rings

Product Overview

Polypac PTFE encapsulated O-rings pair a flexible rubber core (NBR, FKM, silicone, EPDM or FFKM) with a thin, durable PTFE jacket. This design delivers the sealing performance of an elastomer and the chemical and temperature resistance of PTFE, making these O-rings ideal for aggressive media and harsh environments.

Key Features

• Chemical resistance: PTFE outer layer resists acids, bases, solvents and fuels.
• Low friction: Smooth PTFE surface reduces wear and sticking during dynamic use.
• Wide temperature range: Suitable for extreme hot and cold conditions.
• Enhanced sealing: Elastomer core ensures good elasticity and compression set recovery.
• Durability: Built for long-term service in demanding hydraulic and industrial systems.

Applications

Common uses include hydraulic cylinders, pumps, valves, chemical processing equipment, oil and gas systems, and any application where chemical exposure and dynamic movement occur together. Encapsulated O-rings are especially useful where metal-to-metal contact must be avoided or where traditional elastomers fail.

Specifications & Customization

Polypac offers standard sizes and fully custom O-rings. Choose core material (NBR, FKM, silicone, EPDM, FFKM) and PTFE jacket type (virgin, filled, or modified) to meet pressure, temperature and media requirements. Tolerances, hardness, and machine finishing can be tailored for your assembly needs.

Why Choose Polypac

Founded in 2008, Polypac combines over a decade of material expertise with a 10,000+ m² production base and industry-leading equipment. We started with filled PTFE seals and now supply a broad range of elastomer and PTFE products. Our R&D partnerships with universities and testing facilities ensure reliable, high-performance seals and fast, responsive custom solutions.

Polypac PTFE encapsulated O-rings give you a trusted, engineered sealing solution—low friction, high chemical resistance, and long service life. Contact us for material recommendations, samples, and custom quotes.