Hydrocolloid Wound Dressing is made of a wound contact layer of hydrocolloids and a top layer of either semi-permeable polyurethane film or polyurethane foam. On contact with wound surface, the hydrocolloid wound dressings create a moist environment, which can reduce pain, promote the formation of granulating tissue, prohibit bacteria infection and speed up the healing process. Customized Hydrocolloid Wound Dressing Manufacturer in China.