| Test and Analysis of Staining Pollution of EPDM Automobile Sealing Strip |
| Received:April 02, 2019 Revised:April 10, 2019 |
| DOI：10.12136/j.issn.1000-890X.2019.12.0944 |
| Key Words: EPDM；automobile sealing strip；paint；staining pollution；accelerator |
| Author Name | Affiliation | E-mail | | SHI Yunzhou* | SAIC Volkswagen Automotive Co., Ltd | shiyunzhou@csvw.com |
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| Abstract: |
| The test methods of the paint staining of ethylene propylene diene monomer rubber（EPDM）
automobile sealing strip were studied，and causes were analyzed. The results showed that，compared with the
VDA 675242 standard method and constant temperature and humidity simulation test method，the temperature
and humidity cycling test method could effectively identify the potential staining risk. The water extraction
pollution was the main reason for the staining pollution in high humidity environment，and the residual and
separation of accelerators with a high staining tendency contributed most to the staining pollution of EPDM
sealing strip. |
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