The most common water based packaging tape is a polypropylene-based tape which is usually a clear or buff coloured tape. Adhesives used also vary as they may be acrylic, non-acrylic, hot melt and even water-based, depending on what application for which the tape is chosen. The tape is mainly used for sealing corrugated cartons and is applied with hand held dispensers to much larger case-sealing machines that carry 1000 meter length rolls.