Chemical Resistant Rod Seal | Polypac Hydraulic Seals
Chemical Resistant Rod Seal by Polypac
Key Features
Polypac's Chemical Resistant Rod Seal combines exceptional chemical resistance with low friction and stable sealing performance. Designed for hydraulic cylinders exposed to corrosive fluids, solvents, and aggressive media, these rod seals reduce leakage, minimize wear, and maintain sealing integrity across a wide temperature range.
Materials & Technical Innovation
We leverage decades of experience in filled PTFE technology—bronze-filled PTFE, carbon-filled PTFE, graphite PTFE, MoS₂-filled PTFE, and glass-filled PTFE—alongside NBR, FKM, silicone, EPDM and FFKM elastomers. This material mix enables Chemical Resistant Rod Seal formulations that balance chemical compatibility, friction control, and mechanical strength for demanding applications.
Performance Benefits
Chemical Resistant Rod Seal products from Polypac offer superior wear life, low stick-slip, and reliable pressure retention. Chemical compatibility testing and optimized lip geometry ensure consistent performance in hydraulic systems, extending maintenance intervals and lowering total cost of ownership.
Customization & Manufacturing Capacity
With a dedicated custom rubber ring and O-ring factory covering more than 10,000 m² (8,000 m² production space) and industry-leading equipment, Polypac rapidly develops tailor-made Chemical Resistant Rod Seal solutions to precise tolerances and special working conditions.
Quality Assurance & R&D
Founded in 2008, Polypac maintains long-term cooperation with universities and research institutes. Rigorous material selection, advanced testing protocols, and continuous R&D ensure each Chemical Resistant Rod Seal meets stringent hydraulic and chemical exposure standards.
Applications & Industries
Ideal for chemical processing, oil and gas, marine, mining, and specialty hydraulic systems, Polypac’s Chemical Resistant Rod Seal excels where aggressive media and extreme temperatures threaten traditional seals.
Why Choose Polypac
Polypac is a scientific and technical seal manufacturer offering proven expertise, broad material capabilities, and scalable production. Contact us to specify custom Chemical Resistant Rod Seal designs, request samples, or get technical support for your sealing challenges.
Chemical Resistant Rod Seal Display
When should I use a spring-energized seal instead of a standard elastomeric seal?
Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.
How can I prevent seal damage during installation?
Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.
What is the difference between a static seal and a dynamic seal?
A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.
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.
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.
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