Because of potential decomposition, some chemicals need to breathe, especially the hazardous formulations — like hydrogen peroxide, peracetic acid and sodium hypochlorite — found in industrial chemicals and cleaners. To ensure these potentially dangerous materials can breathe, their containers need to be ventilated.

Without the appropriate venting solutions, containers could collapse, bulge or even burst. When containers are exposed to changes in altitude or temperature, the process accelerates. These deformations could result in leaks, creating great risks for end users and the environment. Deformations could also impact brand image and profits by ruining labels, affecting customer relationships, and causing expenses to pile up.

GORE Packaging Vents minimize these risks by continuously maintaining the integrity of drums and containers — and consistently passing the rigid testing requirements of the DOT and ADR. Our vents are suited for a range of chemicals and applications. 

Why Vent?

Because venting is the safe, reliable way to relieve pressure differentials that would otherwise cause containers of liquids to deform, leak or burst.

  • For liquid manufacturers, such defects can reduce productivity and efficiency in palletizing/warehousing. Such defects also hurt profits and brand image, when defective goods are returned...or cannot be sold at all.
  • For cap and container manufacturers, diagnosing and resolving packaging problems can be time-consuming and costly – and can compromise customer satisfaction as well.
  • And all along the supply chain, leaks can create huge risks for end-users and hazards to the environment, as well as costly clean-ups.

GORE® Packaging Vents minimize all these risks. They reliably and continuously equalize pressures, to minimize the potential for leaks and maintain the integrity of containers and their contents.


Active Ingredients that Release or Consume Gases

Unvented container bloating due to off-gassing and collapsing due to oxygen scavenging.

Without venting, pressure build-ups can cause a container to bloat, leak or burst, while under-pressures can cause container collapse.


Many chemical formulations include active ingredients that either off-gas (release gases within the container) or scavenge (consume) free oxygen within the container. 

  • Off-gassing builds up pressure within the container.
  • Oxygen scavenging creates an under-pressure within the container.


Temperature Differences

Temperature differences


Temperature changes, or exposure to different climates, can also deform containers. Rising temperatures expand the gas in the headspace of the container and accelerate the decomposition of reactive chemicals, which can cause over-pressures and bloating. Falling temperatures can cause under-pressures and collapse. Sudden or extreme temperature changes accelerate these deformations.

Changes in the External Environment

Animation of an unvented container deformed by increasing or decreasing temperatures or altitudes.

Sudden or extreme changes in the external environment will accelerate the deformation.


During shipment or warehousing, changes in the external environment (such as increasing or decreasing temperatures or altitudes) also create pressure imbalances that can deform unvented or poorly-ventilated agricultural containers.


Containers Designed to Dispense Liquids

animation of an unvented dispenser container deformed by under-pressure.

Without venting that continuously re-balances the internal and external pressures, the dispensing container may collapse.


In these packages, the dispensing action automatically creates an under-pressure condition within the container, which will happen repeatedly with use.




Our portfolio of vents for agricultural products packaging meet stringent ADR and DOT standards, and are designed to reliably protect the integrity of containers that  bear the most challenging contents:

  • biostimulant formulations 
  • liquid fertilizer packaging
  • highly-concentrated chemical formulations
GORE Packaging Vents protect containers of agricultural chemicals from deformation, leaks and label damage

GORE Packaging Vents protect agricultural packaging from deformation, leaks and label damage.

Household Chemicals

Why Gore?

When you seek solutions for packaging that bloats, collapses or leaks, there are compelling reasons to make Gore your preferred partner:

Membrane Technology Leadership
  • Ongoing development of proprietary membrane technologies.
  • Capability to further customize membrane structure and properties for specific applications.
  • Unlike competitors, we design, manufacture and use only GORE Membranes in all our vents.
  • Global supply chain ensures access to the products and expertise you need.
Gore’s worldwide manufacturing, sales and engineering support resources are readily available to customers.

Gore’s worldwide resources mean our customers have ready access to our products and our sales and engineering support.

Chemical Expertise
  • >25 years experience in venting packaging for industrial and agricultural chemicals, institutional and household cleaners. 
  • Deep technical knowledge of off-gassing and oxygen-scavenging chemicals, and of the ways fluid viscosity and surface tension affect venting.
  • Proprietary test methods (Residual Airflow, LEP) assess vent response to real-world challenges.
GORE Packaging Vents effectively address the real-world challenges related to transporting, storing and handling agrochemical containers.
Quality Assurance
  • GORE Packaging Vents pass rigorous approval tests for  dangerous goods, and meet DOT and ADR standards.
  • Consistent product quality assured through in-line airflow, in-line camera and Water Entry Pressure tests.
  • Laser-marked tracking code enables 100% traceability (individual vent level) for three Series of our Plug-In Vents; all other Series enable lot-level traceability.
Individual laser-markings enable 100% traceability of these Gore Plug-In Vents.

Individual laser-marking is just one example of Gore’s commitment to excellence in both product quality and service.

Global Resources and Support
  • We offer worldwide application engineering support, including extensive testing facilities (if needed), to help find the most appropriate venting solution – or to assist with troubleshooting in case of an emergency.
  • Our global network of sales representatives makes purchasing fast, easy and convenient.
  • Our manufacturing facilities in the US, Germany and Japan provide dedicated centers of excellence for specific product families.
Global Resources and Support
  • We have more than 20 years’ experience in packaging applications including hazardous chemicals, agrochemicals, institutional cleaners and household chemicals.
  • Our products are trusted by every leading chemical formulation company as well as cap and container manufacturers worldwide. Collectively, they have installed hundreds of millions of GORE® Packaging Vents!

Product Comparison

Plug-In Vents

Gore’s Plug-In Vents can easily be installed via press-fit or snap-fit. Available for container sizes from 0.2 to 1,500 liters, they can be integrated into the closures of industrial drums, jerry cans and IBCs as well as consumer containers. Plug-In Vents are designed to withstand harsh chemicals and rugged use. They consistently demonstrate compliance with the UN Orange Book test standards, including the stacking test and drop test.

D18, D17, D15

D38 / D17 / D15:
Our most robust, reliable vents for the most aggressive industrial chemicals and “dangerous goods” packaging. Optimized for ADR Drop Test Specifications.

D15 Converse

D15 Converse:
For cartridges or other packaging that require exterior vent integration. Ideal for dosing/dispensing applications.


A high-performance, small-footprint vent designed to enhance safety, sustainability and savings in applications like dispensers for household or institutional cleaners.


Equalizes pressure ONLY from the outside to the inside, for specialty applications including the smallest cartridges/dispensers that don’t off-gas, but need pressure-balancing for product flow.

For complete details, please download our new GORE Packaging Vents Portfolio Data Sheet.



Liners are the easy way to transform an existing non-vented package into a well-vented package – without modifying your existing cap or closure. All liners are available in single- and multi-up roll goods, as well as in various widths. Cut parts can also be offered. Gore offers two styles of Liners: Foam Liners and Pulp Induction Liners.

New Foam Liner NEW Foam Liners:
Two Series, with full-surface membranes, for all flat-cap designs. Easy drop-in replacements for all single-point or unvented liners, in applications from consumer chemicals to DOT and ADR-regulated packaging.
Pulp Induction Liner Pulp Induction Liners:
Two Series, for agrochemical bottles (up to 5 l). Weldable installation ensures tamper-evidence; membrane construction provides needed breathability for gas-scavenging chemicals and off-gassing liquids.


For complete details, please download our new GORE Packaging Vents Portfolio Data Sheet.


Two NEW foam liners

New GORE foam liner: high roll-off series

New GORE foam liner: high roll-off series

Unprecedent performance for your most extreme challenges.

Learn more

New Gore foam liner: standard series

New Gore foam liner: standard series

A versatile solution for your "everyday" challenges.

Learn more



Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.