Static Conductive Seals — Polypac Precision Conductive Seal Solutions
Static Conductive Seals by Polypac
High-Performance Conductive Sealing for ESD and Static Control
Polypac Static Conductive Seals are engineered to prevent electrostatic charge accumulation while delivering industry-grade sealing for hydraulic, rotary and static assemblies. Designed for environments where electrostatic discharge (ESD) threatens sensitive components or process safety, our conductive seals combine stable electrical percolation paths with proven sealing geometries to ensure both conductivity and fluid containment.
Material Options and Conductive Fill Technologies
We manufacture Static Conductive Seals using a wide range of materials including graphite-, carbon-, and metal-filled PTFE formulations as well as conductive elastomers based on NBR, FKM, EPDM, silicone, and high-performance FFKM. Our early expertise in filled PTFE (bronze, carbon, graphite, MoS₂, glass) supports tailored electrical and tribological properties, letting you balance surface resistivity, wear resistance and chemical compatibility.
Applications and Industry Use Cases
Polypac conductive seals are ideal for hydraulic systems, rotary unions, sensors, battery manufacturing equipment, coating lines and any application where static control and fluid sealing must coexist. They perform reliably in aggressive media, high temperatures and fast sliding conditions—protecting electronics, ensuring process continuity and improving operator safety.
Customized Solutions and Advanced Manufacturing
With a 10,000+ m² production campus and 8,000 m² factory space, Polypac delivers custom Static Conductive Seals to client specifications. Our advanced production and testing equipment, combined with long-term R&D partnerships with universities and research institutions, enables rapid prototyping, special compound development and precision tolerancing for challenging service conditions.
Quality Assurance and Why Choose Polypac
Founded in 2008, Polypac stands among China’s leading seal manufacturers. We implement rigorous QA, electrical resistivity testing and lifecycle validation to ensure consistent conductivity and sealing longevity. Choose Polypac for award-winning expertise, customizable conductive materials, scalable production and responsive technical support for demanding industrial environments.
Static Conductive Seals Display
How important is surface finish on the metal parts that contact the seal?
Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.
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.
Why did my O-ring fail prematurely?
Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.
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.
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 are common inspection and maintenance tips for shaft seals?
FKM: The Complete Guide to High-Temperature & Chemical-Resistant Sealing | Polypac
How to install a rotating shaft seal step-by-step?
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