Our poly tubing is a cost effective packaging method because it eliminates the need for stocking a large number of bag sizes. You simply measure the amount of poly tubing you need, cut, package your item and seal. Manufactured from 100% virgin low density polyethylene, our poly tubing is designed to be heat sealed with our heat sealer. We carry Standard Poly Tubing in numerous widths and thicknesses ranging from 1.5 mil through 6 mil. Also see our selection of Anti-Static Poly Tubing.
Have you seen poly tubing for less? At PackagingSupplies.com, high quantity price discounts are available. If you have any questions about poly tubing or any of the 5000 other packaging supplies we carry, please email or call us toll free at 1-800-536-3668.
Please note that this product is NOT Shrinkable.
To start shopping for poly tubing just click on one of the categories above.
Why Tubing Solves Size Variability
Poly tubing is usually adopted when fixed bag sizes create excess waste. It allows teams to create custom lengths on demand.
Determining Width Before Cutting
Tubing width should exceed the product’s circumference, not just its width. This prevents seam stress and distortion.
Errors That Cause Seal Failures
Improper heat settings lead to weak seals. Another mistake is cutting tubing too tightly, leaving no margin for sealing.
When Pre-Made Bags Are More Efficient
High-volume, uniform products often pack faster with pre-sized bags rather than custom-cut tubing.
Poly Tubing FAQs
What is poly tubing used for?
Poly tubing is used to create custom-length bags for products of varying sizes. You cut the tubing to length, insert the item, and heat seal one or both ends.
Is poly tubing shrinkable?
No. Standard poly tubing is not shrinkable. If you need a tight conforming wrap, you’ll want shrink film/tubing instead.
How do I choose the correct tubing width?
Choose tubing based on the product’s overall circumference (width + thickness × 2), not just the flat width. This ensures the item fits without stressing the seal area or distorting the film.
What mil thickness should I use?
Lighter mil (around 1.5–2 mil) works for lightweight, non-abrasive items. Thicker mil (3–6 mil) is better for heavier products, sharp edges, or puncture risk during handling.
Can I seal poly tubing with an impulse heat sealer?
Yes. Poly tubing is designed to be heat sealed. Seal quality depends on correct time/temperature settings and keeping the seal area clean and flat.
Why are my seals popping open?
Seal failures typically come from under-heating (weak bond), overheating (burn-through), wrinkles in the seal area, or leaving too little film margin. Increase seal margin and adjust heat settings in small increments.
What’s the difference between standard and anti-static poly tubing?
Anti-static poly tubing helps reduce static buildup for sensitive electronics and components. Standard tubing is suitable for general packaging and protection.
Is poly tubing recyclable?
Poly tubing is typically LDPE (plastic #4). Recycling depends on local programs—many areas require drop-off locations for film plastics.