Sigma Plastics Group is your one source for extruded polyethylene film and bags.

As North AmericaÕs largest privately held film manufacturer, Sigma Plastics Group is uniquely positioned to meet a wide range of extruded polyethylene product needs. Our quality, innovation and expertise in flexible packaging, is only surpassed by our ability to deliver film products from 35 locations throughout the United States and Canada.

WeÕve been leading the industry for more than thirty (30) years, providing stretch films, custom films and institutional products that meet our rigorous standards of quality and innovation. With product lines comprised of stretch films, custom films and institutional products, Sigma has the capability to produce specialized plastic... (more)


This stage involves gathering all the necessary materials needed to make your product. Some factories provide materials and assembly; sometimes you will need to buy materials separately.