Water-based Hydrocolloid Wound Dressing ConvaTec DUODERM CGF 20 Dressings DUODERM CGF 10×10cm Water-based Hydrocolloid Wound Dressing from ConvaTec duoderm CGF size 4 inches length × 4 inches width square-shaped - box of 20 each. The product is manufactured and licensed by ConvaTec. The product is classified as water-based hydrocolloid dressings. HCPCS: A6234. ConvaTec duoderm CGF Hydrocolloid Dressing 4" L x 4" W square size, sterile, latex-free. Duoderm CGF dressing is a water-based hydrocolloid wound dressing that maintains moisture and is used for partial and full-thickness wounds with exudates. It features a unique water-based hydrocolloid formulation from ConvaTec that distinguishes it from other water-based hydrocolloid dressings. Duoderm CGF dressing is indicated for use on skin ulcers including full-thickness wounds, pressure ulcers (stage II and IV), leg ulcers, superficial wounds, partial-thickness burns, and donor sites. It protects against harmful germs and viruses such as HBV and HIV. It consists of a highly flexible outer foam layer made of polyurethane and an adhesive contact layer containing a unique water-based hydrocolloid formulation. Biocompatible and easily moldable in place to enhance patient comfort and reduce leakage.