Low Density Polyethylene Film
- Material: Soft LDPE roll film
- Appearance: Clear or natural translucent
- Thickness: 20-200 um typical range
- Width: 300-3000 mm typical range
- Formats: Single wound, double wound, centerfold, tubing
- Uses: Liners, wrapping, covers, heat-sealed converting
Films Protective Company is a manufacturer of low density polyethylene film supplied in rolls for lightweight packaging, liners, general covering, wrapping, and heat-sealed converting. The film feels soft in hand, folds neatly around carton corners and uneven shapes, and is available in clear or natural translucent grades. Width, thickness, roll length, core size, and winding direction are matched to the packing method, equipment limits, and approved sample.
Product Overview
Low density polyethylene film is a practical choice when a soft, lightweight roll material is more useful than a stiff sheet. Its low-density structure helps the film sit closely around container openings, folded edges, and irregular surfaces. A plastic LDPE film roll can be slit for manual covering, liner cutting, or continuous feeding.
Low density polyethylene film is a practical choice when a soft, lightweight roll material is more useful than a stiff sheet. Before confirming LDPE, compare its drape, sealing behavior and stiffness with other polyethylene film types used for tougher, stiffer or oriented structures. The product-level TDS can then be used to approve the required LDPE grade and roll format.
For orders involving polyethylene film on rolls, confirm nominal thickness, usable width, roll length, core size, maximum roll diameter, and winding direction. A light carton liner may need a different gauge from a wide cover that is opened and refolded during storage. Clear grades keep packed items visible, while natural translucent grades suit liners and routine covers.
Before approval, review roll flatness, edge alignment, and gauge consistency. Inspect for visible gels, black specks, fisheyes, pinholes, and uneven winding.
Benefits
- Soft enough to fold around corners, openings, and uneven shapes.
- Lightweight for light-to-medium packaging without unnecessary roll weight.
- Available in clear or natural translucent grades.
- Heat-sealable for sleeves, liners, and simple bags.
- Suitable for manual handling or machine feeding after format confirmation.
- Custom thickness and width help balance fit, strength, and material use.
When Should Single Wound, Double Wound, or Layflat Tubing Be Selected for LDPE Film Rolls?
Single wound polyethylene film works well when one flat layer feeds directly from a roll for covering, liner cutting, or continuous processing. Double wound sheeting carries two layers on one roll and suits paired-sheet handling during packing or converting. Centerfold film opens into a wider sheet. Layflat tubing is useful when different package lengths need to be cut and heat-sealed from one roll. Check opening width, roll dimensions, core size, winding direction, loading method, and maximum roll diameter against the equipment.
TDS / Technical Data Sheet
Item | Typical Value |
Material | Low density polyethylene, LDPE |
Appearance | Clear, natural translucent, or customized color |
Film format | Single wound, double wound, centerfold, or layflat tubing |
Thickness | 20-200 um typical range, confirm by application |
Roll width | 300-3000 mm typical range, custom slitting available |
Roll length | Confirm by thickness, width, core size, and roll weight |
Density | Typical LDPE reference: 0.910-0.925 g/cm3 |
Tensile strength at break | MD / TD, confirm by ASTM D882 or agreed method |
Elongation at break | MD / TD, confirm by ASTM D882 or agreed method |
Haze | Grade- and thickness-dependent, confirm by ASTM D1003 |
Practical sealing window | Confirm by thickness, pressure, dwell time, and line speed |
Service-temperature boundary | Confirm by selected grade and end use |
Core size and roll diameter | Confirm by equipment |
Winding direction | Confirm before production |
Roll flatness and edge alignment | Inspect before machine feeding |
Appearance inspection | Review gels, black specks, fisheyes, pinholes, and uneven winding |
Thickness tolerance | Confirm by nominal gauge and approved sample |
Repeat-order control | Retain approved sample for batch comparison |
Applications
- Carton and container liners for lightweight goods.
- Dust and moisture covers for warehouse handling.
- Flexible wrapping for products with uneven shapes.
- Roll-fed film for liner cutting and machine feeding.
- Heat-sealed sleeves or simple bags after converting.
- Clear LDPE film where visibility is required.
How Should LDPE Film Thickness and Width Be Confirmed Before Heat-Sealing or Covering Applications?
Thickness should match the packed item, handling frequency, fold pattern, surface edges, and required fit. Width should suit the liner opening, wrapping area, or machine-feeding path while leaving margin for folding and sealing. For heat-sealed use, check the required polyethylene film temperature range on the actual machine. Test temperature, pressure, dwell time, line speed, and seal consistency. Where polyethylene film heat resistance matters, validate the operating boundary using the actual temperature, pressure, dwell time, line speed, substrate, and acceptable dimensional change. Retain the approved sample for batch comparison.
FAQ
Is LDPE film suitable for transparent packaging?
Yes. Clear grades are available, but haze should be reviewed with thickness because thicker rolls may appear less transparent.
Can LDPE film be supplied for machine feeding?
Yes. Check the roll format, dimensions, winding direction, and feeding condition before production.
How should heat-seal performance be checked?
Run a sample on the actual equipment and compare the finished seal with the approved reference.
What should be confirmed for repeat orders?
Reconfirm thickness, width, roll length, appearance, winding direction, tolerance, and visible-defect acceptance against the retained sample.
