Micro-porous waterproof coating technology - Dimensionally stable film means great registration and no curling - Quick dry time equals faster process times and less ink usage - Accurate dot placement results in excellent line definition and acuity - High ink load capacity - Minimal "yellowing'' allows the processed film to retain the image over time and be used repeatedly - Thickness: 4 Mil Note: Side of the film to print on: waterproof film has two sides, the carrier sheet side and the inkjet receptive side. To determine which side is the inkjet receptive side, dampen your finger and touch a corner of the film, the side that is sticky is the side that will take ink.