Canyon Components

Permeation occurs when gas or liquid molecules diffuse through an elastomer, potentially leading to pressure loss or contamination. Selecting low-permeation O-rings and gaskets made from materials like FKM, FFKM, or PTFE minimizes leakage and ensures long-term sealing performance in vacuum, fuel, and chemical systems.

permeation

Permeation and Outgassing in Seals

Spring-energized seals use a metal spring inside a PTFE or PEEK jacket to maintain consistent sealing pressure across temperature and pressure changes. Commonly used in place of O-rings and gaskets for extreme environments, they provide excellent chemical resistance, low friction, and long service life in aerospace, cryogenic, and chemical processing applications.

spring-energized seals

Spring-Energized Seal vs O-Ring | When to Upgrade, Extreme Conditions

O-ring failures can occur from chemical attack, over-compression, abrasion, or thermal degradation. Understanding these causes helps engineers select the right materials and designs to improve the reliability and lifespan of O-rings and gaskets.

Outgassing Posts

Permeation and Outgassing in Seals

Spring-Energized Seal vs O-Ring | When to Upgrade, Extreme Conditions

O-Ring Failures Explained: Causes, Symptoms, and Prevention Strategies