Quality Archives - KODA oil seal and O-ring

The Importance of O-Ring Tolerance

Maggie August 10, 2026 August 10, 2026

O-ring tolerance is one of the most important but frequently underestimated factors in sealing-system design. An O-ring may have the correct nominal size, material, hardness, and compound designation, yet still fail to seal reliably if its dimensional tolerance is not appropriate for the application. For engineers, purchasers, maintenance teams, and manufacturers, understanding O-ring tolerance means understanding how small dimensional variations

What is carbon steel? What role does it play in seals?

Maggie July 23, 2026 July 23, 2026

What Is Carbon Steel and What Role Does It Play in Seals? Carbon steel is one of the most widely used engineering materials in the world. It is primarily an iron-based alloy in which carbon is the principal alloying element, with the carbon content and processing history strongly influencing strength, hardness, ductility, weldability, machinability, and wear resistance. In sealing technology,

How Tensile Strength Affects O-Ring Performance

Maggie July 20, 2026 July 20, 2026

Understanding How Tensile Strength Affects O-Ring Performance When engineers evaluate an O-ring, tensile strength is often discussed alongside hardness, elongation, compression set, chemical resistance, and temperature capability. However, tensile strength is one of the most important mechanical properties because it determines how well an elastomer can resist stretching, installation stress, pressure-induced deformation, handling damage, and mechanical loading before rupture. A

Set, Stress Relaxation, and Rebound

Maggie July 14, 2026 July 14, 2026

Understanding Compression Set, Stress Relaxation, and Rebound in O-Ring Performance O-rings are among the most widely used sealing components in hydraulic systems, pneumatic equipment, automotive assemblies, industrial machinery, aerospace equipment, medical devices, food processing systems, and electronic connectors. Their sealing capability depends not only on the material itself but also on several critical mechanical properties that determine long-term sealing reliability.

What is the difference between brass and copper washers?

Maggie July 3, 2026 July 3, 2026

Understanding the Material Differences Between Brass and Copper Washers Brass and copper washers are among the most commonly specified sealing and load-distribution components in mechanical engineering, hydraulic systems, automotive assemblies, plumbing equipment, compressors, pumps, and industrial machinery. Although they appear similar because of their metallic appearance, their mechanical properties, sealing behavior, corrosion resistance, hardness, thermal conductivity, and long-term reliability differ

PFAS Chemicals and Their Impact on Elastomers

Maggie July 1, 2026 July 1, 2026

Per- and polyfluoroalkyl substances (PFAS) have become one of the most discussed topics in modern manufacturing, environmental compliance, and material engineering. Often referred to as “forever chemicals” because of their exceptional chemical stability and persistence, PFAS have been widely used across industries for decades. In the elastomer sector, PFAS-related materials have played an important role in producing high-performance seals, O-rings,

What is a ACM rubber?

Maggie June 11, 2026 June 11, 2026

ACM Rubber: The High-Temperature Elastomer Powering Modern Automotive and Industrial Sealing Systems When discussing advanced elastomer materials used in modern sealing technology, ACM rubber is often mentioned alongside NBR, FKM, HNBR, and silicone rubber. Although it may not be as widely recognized outside the sealing industry, ACM rubber has become a critical material for applications requiring excellent heat resistance, oxidation

What is a silicone rubber?

Maggie June 11, 2026 June 11, 2026

Understanding Silicone Rubber: The High-Performance Elastomer Behind Modern Sealing Solutions Silicone rubber has become one of the most important elastomer materials used in modern manufacturing, engineering, healthcare, food processing, electronics, automotive systems, and sealing technology. Known for its exceptional temperature resistance, flexibility, weatherability, and chemical stability, silicone rubber has earned a reputation as one of the most versatile synthetic materials

Regulatory & Compliance Requirements for Seals by Industry

Maggie June 4, 2026 June 9, 2026

Why Regulatory Compliance Matters in Industrial Sealing Applications In today’s highly regulated manufacturing environment, seals are far more than simple components designed to prevent leaks. Across industries such as food processing, pharmaceuticals, automotive, aerospace, oil & gas, medical devices, and renewable energy, sealing products must comply with strict regulatory and performance standards. Failure to meet these requirements can result in

What is Piston oil seal?

Maggie June 3, 2026 June 18, 2026

In modern hydraulic and pneumatic systems, sealing performance directly determines efficiency, reliability, and service life. Among the various sealing components used in cylinders and fluid power equipment, the piston oil seal plays one of the most critical roles. Although often overlooked compared to pumps, valves, and actuators, a piston seal is the key element responsible for maintaining pressure separation, controlling

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