Expanded polytetrafluoroethylene (ePTFE) does not contain formaldehyde.
Expanded polytetrafluoroethylene is a medical polymer material, mainly made of polytetrafluoroethylene resin through a special processing method. It has the characteristics of non-toxicity, non-carcinogenicity, non-sensitization, and good biocompatibility with the human body, and rarely causes rejection. In addition, the microporous structure of expanded polytetrafluoroethylene allows the capillaries and tissue cells of the human body to grow into it, forming a stable structural connection, making the postoperative effect natural and the pain level mild.
