Partners Brand PT1004B poly tubing 10in x 725ft 4mil black

10-inch black poly tubing for continuous packaging

This 10-inch wide poly tubing comes on a 725-foot roll with a 4-mil thickness and is coloured black for opacity. It is sold new and intended for operations that need to create custom-length bags on demand for shipping or storage. The continuous format suits high-volume packing stations that seal and cut to size. Buyers who need pre-made bags in fixed dimensions will find this roll unsuitable.

Practical limits of flat polyethylene tubing

The flat lay-flat width of 10 inches determines the maximum circumference of the finished bag, so items wider than roughly five inches will not fit once the tube is sealed. Four-mil polyethylene resists punctures for light to medium loads but will stretch or tear under heavy or sharp-edged contents. Black pigment blocks light but does not add a UV stabiliser unless specified, so prolonged outdoor exposure may degrade the film. The roll length of 725 feet sets a hard cap on total bag yield before a changeover is required.

Installation notes and common issues

The tubing feeds from a standard roll holder or dispenser; no tools are needed beyond a heat sealer or impulse sealer to close each bag. Misaligned seals are the most frequent fault, caused by uneven tension or a dirty sealing bar. Static build-up on the film can cause layers to cling, leading to double feeds and wasted material. California Proposition 65 warnings indicate the presence of chemicals linked to cancer and reproductive harm, so handlers should follow standard industrial hygiene practices.