Reposted with permission from UC Components, Inc. View the original post on their site here: https://www.uccomponents.com/vacuum-permeation-in-o-ring-polymers/ Permeation, or the permeability coefficient, of a polymer refers to the volumetric flow of gasses, under controlled conditions, through the material’s surface. Permeability does not equal leakage! Leakage refers to gasses that flow around the seal. Permeation is a
Read More...
Reposted with permission from UC Components, Inc. View the original post on their site here: https://www.uccomponents.com/unseen-complications-outgassing-and-the-role-of-vented-fasteners-and-o-rings/ Outgassing is often an underestimated concern in vacuum systems, cleanrooms, and high-performance assemblies, especially when using fasteners and sealing materials not engineered explicitly for such environments. Outgassing is the release of trapped or absorbed gases from materials when exposed to a
Read More...
Reposted with permission from UC Components, Inc. View the original post on their site here: https://www.uccomponents.com/material-considerations-for-o-rings-used-in-vacuum-and-clean-critical-environments/ O-rings are most often the primary source of contamination in any vacuum system. Selecting the proper O-ring design and material are essential to maintaining the seal and overall system integrity. Unfortunately, you cannot simply rely on the property values
Read More...