| Tube body | Flexible body wall | Polyethylene (PE), often low-density PE (LDPE) or a PE blend | Provides a squeezable package that can dispense product through an opening when pressure is applied. | Wall thickness and resin formulation affect flexibility, recovery, and how easily the contents can be controlled. |
| Tube body | Tougher or more flexible PE formulation | Linear low-density PE (LLDPE), sometimes blended with other PE grades | Can be selected to tune flexibility and toughness in flexible packaging applications. | Suitability depends on the tube design and product; confirm compatibility and dispensing performance with testing. |
| Closure | Screw cap or other closure | Polypropylene (PP) or PE, depending on the package design | Closes the opening between uses and can be designed to work with a nozzle or applicator. | Thread fit, sealing surfaces, and dispensing-orifice size influence usability and leakage control. |
| Applicator | Direct-application tip | Often a molded plastic tip, commonly PE or PP; tip shape varies by package | Allows gloss to be applied directly from the tube and can shape the flow of product. | A slanted, rounded, or narrow opening changes the application feel and dispensing rate; test with the actual formula. |
| Applicator | Wand with doe-foot applicator | Typically a plastic wand with a flocked applicator tip | Picks up product for application; the applicator is usually stored inside the tube rather than dispensed through a squeeze nozzle. | This format is a different dispensing design from a simple squeeze-and-apply nozzle; confirm the tube neck and wiper are compatible. |
| Optional construction | Multilayer wall | Multiple polymer layers; barrier layers such as EVOH may be used in some packaging constructions | A selected layer can add barrier properties to a package structure. | Barrier performance depends on the complete construction and closure; validate against the formula and intended shelf life. |
| Decoration | Color and surface graphics | Printed, labeled, or otherwise decorated tube surfaces | Supports product identification and visual differentiation on shelf. | Check decoration adhesion and legibility on the selected tube material and finish. |
| Overall design | Squeezable format | Flexible tube body paired with a compatible opening, tip, or closure | Offers a simple way to dispense product by hand and can be designed for direct application. | Evaluate squeeze force, dose control, seal integrity, and formula compatibility using filled-package testing. |