Poly tubing is one of the most versatile products in plastic packaging — and a staple offering at M Plastics. It’s a continuous roll of plastic film that’s open on both ends and sealed only when you’re ready, offering a made-to-fit solution for items of varying lengths and sizes.
What Is Poly Tubing?
Poly tubing is a long, uncut tube of polyethylene film wound onto a roll. You cut it to any length and seal one or both ends with a heat sealer, tape, or twist ties. It comes in various widths and mil thicknesses, plain or printed.
Think of it as a “bag on demand” system — you create the exact size you need, when you need it.
Common Uses for Poly Tubing
Poly tubing shines when you’re packaging items of varying lengths, irregular shapes, or high volume with mixed sizes. It’s commonly used for:
- Tools, metal rods, and pipes
- Industrial components
- Textile rolls
- Art prints and posters
- Agricultural packaging
It also runs well on automated bagging equipment in high-speed operations.
How We Manufacture It
Poly tubing comes straight off our blown film extrusion lines:
- LDPE resin is melted and extruded through a circular die.
- A tube of film is formed, inflated with air, and cooled.
- The film is collapsed and wound onto rolls at your specified width and thickness.
- Rolls are boxed and labeled for shipping or will-call.
Because the tubing is uncut, there’s no waste from pre-sized bags — you only seal what you need. Resin blends can be adjusted for strength or clarity depending on the application.
Why Customers Choose Poly Tubing
- Flexible length — no need to stock multiple bag sizes
- Low waste — use only what’s needed
- Printable — logos, part numbers, or instructions up to 6 colors
- Consistent — extruded in-house for reliable width and mil thickness
Final Thoughts
If your operation needs packaging that adjusts to product size or batch variation, poly tubing is hard to beat. It pairs well with layflat bags for the items you package in fixed sizes.
Tell us your widths and thickness needs — request a quote and we’ll spec the right tubing for your line.
Have a Packaging Question?
M Plastics manufactures LDPE bags and film in Los Angeles with in-house extrusion and printing. Tell us what you're packaging and we'll help you spec the right bag.
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