Felins Packaging Equipment Ultra-sonic welding technology allows the use of thin, strong and economical films. No special coatings are needed. Recyclable polypropylene and polyethylene films are environmentally friendly and reduce waste. Brown paper, white paper, clear plastic film, and white plastic film can be used in every US-2000 machine. Simply rethread the machine with the desired material and start banding! Get more information! Click here to get more information about this type of product packaging.