Polypac Shock Pressure Seal — High-Performance Hydraulic Sealing Solutions
Polypac Shock Pressure Seal — High-Performance Hydraulic Sealing Solutions
Polypac's Shock Pressure Seal product category is engineered to resist sudden pressure spikes, impacts and dynamic loads common in modern hydraulic systems. Combining advanced filled PTFE compounds and High Quality elastomers, our Shock Pressure Seal lineup provides dependable leakage control where conventional seals fail.
Superior Shock Pressure Seal Materials
Our Shock Pressure Seals are available in bronze-filled PTFE, carbon-filled PTFE, graphite PTFE, MoS2-filled PTFE and glass-filled PTFE, plus elastomers such as NBR, FKM, silicone, EPDM and FFKM. These material options let engineers optimize resistance to extrusion, wear, chemical attack and temperature, ensuring the right Shock Pressure Seal for every application.
Designed for Extreme Conditions
Shock Pressure Seal designs from Polypac are tailored for abrupt pressure surges, high-frequency impacts and abrasive media. We focus on dynamic sealing geometries and reinforced profiles that maintain sealing integrity under shock loads, minimizing downtime and extending service life in demanding hydraulic, oil & gas and heavy equipment applications.
Custom Manufacturing & Precision
With a custom rubber ring and O-ring factory covering over 10,000 m² and 8,000 m² of production space, Polypac delivers precision-manufactured Shock Pressure Seals at scale. Our advanced molding, machining and inspection equipment supports rapid prototyping and volume production of bespoke seal profiles and tolerances.
Quality Assurance & Testing
Polypac invests in industry-leading testing protocols and collaborates with universities and research institutes to validate Shock Pressure Seal performance. Each seal undergoes rigorous pressure, fatigue and material compatibility testing to meet client specifications and international standards.
Applications & Industries
Shock Pressure Seals are ideal for hydraulic cylinders, servo systems, subsea equipment, mining machinery, construction vehicles and aerospace actuators. Wherever pressure shocks or transient spikes threaten seal life, Polypac provides proven solutions to reduce leaks and maintenance costs.
Why Choose Polypac?
As a scientific and technical hydraulic seal manufacturer and oil seal supplier, Polypac combines decades of material expertise, R&D partnerships and modern production capacity to deliver high-performance Shock Pressure Seals. Contact us for custom formulations, rapid samples and engineering support to solve your toughest sealing challenges.
Shock Pressure Seal 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.
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.
What is the difference between NBR and FKM materials?
NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.
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.
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