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United Bags, Inc. has a long history with woven polypropylene bags. In the mid 1960’s, United Bags created a division called Synthetic Industries. Synthetic Industries was one of the very first companies in the United States to extrude and weave woven polypropylene. This division of United Bags was created to manufacture sand bags to protect our American soldiers at war. These sandbags were also used across America for flood prevention. As the market developed, United Bags manufactured and sold woven polypropylene bags for commodity dry goods, as well as to the United States Department of Agriculture for exporting grains to countries in need of nutrition.

Unlike paper bags, woven polypropylene bags are puncture resistant. This saves the shipper costs from lost product and bag loss during shipping.

Call 314-421-3700 or browse our online store to order our polypropylene bags.


Recently, a new technique has been developed to enhance the printing on a woven polypropylene bag. This has been accomplished with reverse printing using BOPP film (Bi-Oriented PolyPropylene). With the advent of BOPP film, (laminated to an already strong woven polypropylene bag), the woven bags now have the same high quality graphics found on multiwall paper bags and polyethylene bags.

With shelf appeal and its legendary strength, the BOPP woven polypropylene bag is gaining market share from the multiwall bag industry.

Market applications utilizing BOPP woven polypropylene bags include:

  • Food Products
  • Pet Food
  • Animal Feed
  • Cat Litter
  • Building Materials
  • Fertilizer
  • Resins
  • Chemicals

Companies who have been accustomed to using multiwall paper bags can utilize their same packing equipment to fill BOPP - open mouth or valve woven polypropylene bags.

United Bags prides itself in providing consistent quality bags and superior customer service. We perform our own quality inspection to assure our customers receive consistent bags that they can be proud to package their product in.

United Bags' customers profit from our customized inventory program by utilizing our 300,000 square feet warehouse centrally located in St.Louis, MO. By stocking our customers’ bags, we have eliminated the stress of long lead times. Our inventory program guarantees prompt delivery to our customers. Customers within 500 miles receive 24 hour delivery, and customers within 500 + miles receive delivery in 48-96 hours.

United Bags partners with our customers to insure needs are met through timely deliveries, quality products, and by adhering to a customer driven approach of doing business.

Polypropylene Sandbags in a Tube 12" x 45"
Price Each: $0.30
Total Quantity: 2000
Price: $600.00 
18" x 30" Polypropylene Bags
Price Each: $0.38
Total Quantity: 1000
Price: $380.00 
19" x 30" Polypropylene Bags
Price Each: $0.40
Total Quantity: 1000
Price: $400.00 
23" x 36" Polypropylene Bags
Price Each: $0.57
Total Quantity: 1000
Price: $565.00 
24" x 40" Polypropylene Bags
Price Each: $0.58
Total Quantity: 1000
Price: $583.00 
27" x 40" Polypropylene Bags
Price Each: $0.73
Total Quantity: 1000
Price: $730.00 
29" x 40" Polypropylene Bags
Price Each: $0.81
Total Quantity: 1000
Price: $810.00 
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United Bags, Inc. | 2508 N. Broadway | St. Louis, MO 63102 | 800-550-BAGS (2247)