o-ring Archives - KODA oil seal and O-ring

EPDM Rubber: Meaning, Benefits & Applications

Maggie September 23, 2026 September 23, 2026

EPDM rubber is one of the most widely used elastomers for water, steam, outdoor, and weather-exposed sealing applications.Its strong resistance to ozone, UV radiation, weathering, hot water, and many polar chemicals makes it valuable for O-rings, gaskets, hoses, pipe seals, and industrial components. However, EPDM is not a universal oil-resistant rubber. Its limitations with petroleum-based oils and hydrocarbons are just

Fluorosilicone Vs Silicone What The Difference

Fluorosilicone Vs. Silicone: What’s The Difference

Maggie September 21, 2026 September 21, 2026

Fluorosilicone and silicone are closely related elastomers, but they are not interchangeable.Both can provide excellent temperature flexibility, weather resistance, and long-term sealing performance. The major engineering difference appears when the seal is exposed to fuels, mineral oils, aromatic hydrocarbons, solvents, or demanding low-temperature conditions. Selecting an elastomer only from its advertised temperature range is one of the most common causes

Viton Vs Silicone O-Rings: Which Material Should You Use?

Maggie September 16, 2026 September 16, 2026

Choosing between FKM and silicone O-rings is not simply a matter of comparing two rubber materials. Both elastomers can provide reliable sealing performance, but they respond differently to temperature, chemicals, mechanical stress, compression, pressure, and environmental exposure. FKM is widely selected for applications involving oils, fuels, hydrocarbons, elevated temperatures, and demanding industrial environments. Silicone, often identified as VMQ, is valued

What is the difference between Oil Seal And O-Ring?

Maggie September 15, 2026 September 15, 2026

Oil seals and O-rings are both widely used to prevent fluid leakage, but they are not interchangeable sealing components. Their geometry, sealing mechanism, motion capability, installation method, and typical operating environments are fundamentally different. An O-ring is a relatively simple elastomeric sealing element that is installed in a designed groove and compressed against mating surfaces. An oil seal, often called

Viton vs Silicone O-Rings: Which is the Best Choice

Maggie September 10, 2026 September 10, 2026

When an O-ring fails, the problem is not always caused by poor manufacturing or incorrect dimensions. In many cases, the real issue starts with material selection. An O-ring may have the correct inside diameter and cross-section but still fail because the elastomer cannot withstand the temperature, chemical medium, pressure, or mechanical conditions of the application. This is particularly important when

Do Silicone O-Rings Stretch?

Maggie September 4, 2026 September 4, 2026

Do silicone O-rings stretch?Yes. Silicone O-rings are flexible elastomeric seals that can be stretched during installation, but flexibility does not mean unlimited elongation is acceptable. In an OEM sealing application, an O-ring that is stretched too far may look perfectly normal during assembly while its cross-section becomes smaller than intended. That reduction can decrease sealing squeeze, increase the risk of

O-Ring Size Guide: How to Measure, Identify, and Order the Right Size Every Time

Maggie August 31, 2026 August 31, 2026

Why O-Ring Size Matters More Than It Seems Choosing an O-ring is often treated as a simple measurement task: measure the old seal, find the closest size in a chart, and place an order. In engineering applications, however, O-ring size selection is a sealing-design problem, not simply a dimension-matching exercise. The correct O-ring must match the groove geometry, required squeeze,

Standard vs. UL Listed O-Rings: When to Use Each

Maggie August 27, 2026 August 27, 2026

When engineers specify an O-ring for a new machine, the decision is rarely as simple as choosing the correct size. The application may require a particular elastomer, hardness, temperature range, pressure capability, chemical resistance, compression set performance, and regulatory status. One question becomes especially important when equipment is intended for electrical, industrial, fluid-handling, appliance, enclosure, or safety-related applications: Should the

Selecting Teflon® Encapsulated O-Rings for Reliable Sealing

Maggie August 17, 2026 August 17, 2026

Understanding Teflon® Encapsulated O-Rings for Reliable Sealing Selecting the right sealing material is rarely as simple as choosing an elastomer with the highest temperature rating or the broadest chemical-resistance chart. In demanding industrial equipment, the seal must often withstand aggressive chemicals, elevated temperatures, pressure cycling, vacuum, cleaning agents, process fluids, and dimensional changes while maintaining sufficient sealing force. This is

Safety with Metal Detectable O-Rings

Maggie August 14, 2026 August 14, 2026

Why Metal Detectable O-Rings Matter for Modern Manufacturing Safety Metal detectable O-rings are engineered sealing components designed to provide the normal sealing function of an elastomer while also improving the ability of a production line to identify fragments or particles that may enter a product stream after seal damage. They are particularly valuable in food processing, beverage production, pharmaceutical manufacturing,

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