Aging protection starts with a compound suited to the operating environment. The polymer, cure system and additives can all affect how a grommet changes during storage and use.
Antioxidants and other protective additives may help address particular aging mechanisms, but they do not make a compound permanently resistant to heat, weather or chemicals. Their suitability also depends on compatibility, processing and any contact requirements for the finished part.
Keep stored parts under the supplier's recommended conditions and avoid unnecessary exposure to heat, sunlight and contaminants. During service, inspect the part against the application's acceptance criteria. When comparing materials, use identified compounds and documented test conditions rather than an unsupported claim of a universal anti-aging treatment.
