Product Specifications
Custom PE Foam Vent Liner Performance
Liner dimensions, membrane airflow, foam thickness and liquid resistance can be selected according to your cap structure, container size and chemical formulation.
15 mm to 120 mm
Standard and custom die-cut PE foam vent liners are available for a wide range of bottle caps, jerrycans and industrial closures.
Water Entry Pressure Options
Membrane structures can be selected for liquid resistance requirements, including applications with splash, vibration and transport pressure changes.
Controlled Pressure Equalization
Airflow performance can be tailored to container volume, filling conditions, expected outgassing and transport environment.
Hydrophobic or Oleophobic ePTFE
Choose membrane treatments for water-based liquids, oils, surfactants, solvents and other low-surface-tension formulations.
Engineering Benefits
A Reliable Foam-Based Venting Structure
PE foam vent liners are widely used when a closure requires cushioning, consistent compression and breathable membrane performance in one integrated liner. The foam base helps accommodate minor variations in cap and container surfaces.
Resilient Compression Support
The PE foam backing helps create a stable interface between the cap and container rim, supporting repeatable closure performance.
Integrated ePTFE Vent Membrane
The breathable membrane is bonded to the foam structure to provide pressure equalization while helping resist liquid entry.
Chemical Compatibility Options
Material and membrane selections can be evaluated for compatibility with chemical, agrochemical, lubricant and cleaning product formulations.
Typical Applications
Where PE Foam Vent Liners Are Used
Industrial Jerrycans
For 5 L to 25 L chemical containers that may experience pressure changes during filling, storage and transport.
Agrochemical Bottles
Suitable for pesticide, fertilizer, herbicide and agricultural chemical packaging.
Household Chemical Products
Used for detergents, surface cleaners, bleach products and concentrated cleaning liquids.
Automotive Fluids and Additives
For engine treatments, lubricant additives, cooling fluids and other automotive liquid packaging.
Specialty Cleaners
Supports institutional cleaners, glass cleaners, sanitation products and commercial chemical concentrates.
Global Logistics Packaging
Helps support packaging stability for liquid containers exposed to changing temperature and pressure conditions in transit.
PE Foam Evaluation Program
Request PE Foam Vent Liner Samples
Please share your cap diameter, container material, liner thickness preference, liquid formula and transport conditions. Our team can recommend a suitable PE foam and ePTFE membrane structure.
Technical Support: info@ventrase.com
PE Foam Vent Liner Request
Provide your packaging specifications for sample selection, quotation and technical evaluation.