Barrier film is used for covering items likely to become contaminated during a medical procedure, including tattoo, or piercing. It can be used to prevent contamination and cross-contamination. This Precision Barrier Film comes in a dispenser box with 1200 perforated sheets. Some items during tattooing that you may cover with barrier film include power supplies, lighting, arms of chairs, and other various locations in the tattooing or piercing room.