Dafilon is a non-absorbable synthetic monofilament suture made of polymers polyamide 6/6.6 (dyed blue), polyamide 6.6 (dyed black) or polyamide 6 (undyed). Dafilon blue and Dafilon undyed are indicated for the closure of superficial wounds and plastic surgery. Dafilon black is used for microsurgical and ophthalmic purposes. As with any nylon suture, though not absorbed, progressive hydrolysis of the suture may result in gradual loss of its tensile strength over time. Properties - Monofilament - Colour Blue, black or undyed - Chemical composition Polyamide - Coating Uncoated - Origin Synthetic - Type of absorption Non-absorbable - Sterilisation Gamma-irradiation / ethylene oxide (microsurgery 7/0 to 11/0) Advantages - Flexible, easy to handle and tie - Smooth passage through tissue - Excellent histocompatibility