Explore Our Product Range
Choose the Right Vent Liner for Your Closure
Our packaging vent liners are available in multiple material structures for agrochemical bottles, household chemicals, industrial fluids, lubricants, cleaners and other demanding liquid packaging applications.
EPE Vent Liners
Resilient EPE foam vent liners with ePTFE membranes for reusable caps, multi-dose liquids and reliable pressure equalization.
PE Foam Vent Liners
Cost-effective PE foam vent liners designed for standard closures used in household chemicals and industrial liquid packaging.
Pressure Sensitive Vent Liners
Easy-to-apply vented cap liners that adhere through cap torque, without requiring induction sealing equipment.
One-Way Vent Liners
Directional venting solutions for packaging that needs controlled gas release while reducing outside air ingress.
Induction Vent Liners
Heat-sealed induction vent liners that combine tamper evidence, secure closure performance and breathable membrane protection.
Aluminum Foil Vent Liners
High-barrier aluminum foil vent liners for aggressive chemicals, corrosive liquids and demanding global shipping conditions.
Request a Vent Liner Evaluation
Please include your container material, cap diameter, liquid formula and expected transport conditions for a faster recommendation.
FAQ / Technical Support
Breathable Vent Liner FAQs
What are breathable vent liners used for?
Breathable vent liners help equalize pressure inside sealed containers. They are commonly used for chemical bottles and liquid packaging to reduce leakage, container swelling, paneling and vacuum deformation.
Can vent liners be customized for different caps?
Yes. Ventrase can customize liner diameter, thickness, foam or foil structure, membrane airflow and sealing format to match your cap design and packaging requirements.
Are ePTFE vent liners suitable for aggressive chemicals?
ePTFE membranes offer strong chemical resistance. For oils, surfactants and other low-surface-tension liquids, the liner structure can be selected or treated to improve liquid repellency and maintain airflow performance.
Every breathable vent liner is engineered to support safer packaging performance throughout filling, storage and transportation. We help packaging manufacturers reduce leakage risks and protect product quality in demanding supply chains.