3M Blenderm - Waterproof Plastic Tape (Hypoallergenic) is an occlusive, transparent plastic tape. 3M Blenderm tape is designed to keep external fluids and contamination away from wound areas. Blenderm tape is very flexible and is ideal for use in hard to reach areas of the body. Blenderm plastic tape is hypoallergenic and waterproof. Roll Size: 1", 2". Each, box, case.