Failure Pattern
Occurring in both static and dynamic seals, primarily in fuel system service, this failure pattern is marked by loss of physical volume.
![o-ring plasticizer extraction](http://s3.amazonaws.com/applerubber/sdg/oring-plasticizer-extraction.png)
Problem Sources
- Extraction of plasticizer by system chemicals
- High temperature volatilize rubber plasticizer and outgasses
Suggested Solutions
- Employ chemically compatible o-ring material
- See Chemical Compatibility Table (Material Selection Guide section)
- Use high-temperature plasticizers
- Use plasticizers that are not soluble in system chemicals