GORE Liners for Pressure Equalization in Sealed Packaging
GORE Liners bring added versatility, economy and safety to a range of packaging applications, from household chemicals to fertilizers and pesticides.
Easy, Economical Integration. No Cap Modification
GORE Liners easily convert non-vented containers into vented containers without modifying the existing cap or closure. They are available in two series – Foam Liners and Pulp Induction Liners and provide unprecedented performance for the extreme challenges faced by fertilizers, pesticides, household chemicals and cleaners.
Benefits of Liners:
- Easy to integrate without re-design of cap.
- Designed for cap-thread venting or hole-in-cap venting.
- Available in single- and multi-up rolls in a range of widths
- Cut parts can also be provided
Benefits of GORE Packaging Vents include:
- Continuously equalize pressure differentials, to prevent packaging of chemicals from deforming, leaking or bursting.
- Quickly recover their venting capabilities after liquid contact, even with most challenging formulations.
- Protect the integrity of packaging and labeling, to prevent damage to the brand’s image or reputation.
GORE Liners are developed for fertilizer, pesticides, household chemicals and cleaners.
More specifically:
- 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 Liners: Two Series, for agrochemical bottles (up to 20 l). Weldable installation ensures tamper-evidence; membrane construction provides needed breathability for gas-scavenging chemicals and off-gassing liquids.
The portfolio of GORE Liners include GORE Foam Liners and GORE Pulp Induction Liners.
GORE Foam Liners
Gore Foam Liners reliably vent hazardous chemicals, agrochemicals, liquid fertilizers, institutional cleaners and household chemicals.
- Easy drop-in replacements for all single-point or unvented liners.
- Choose Standard Series or High Performance Series for more challenging chemistries.
- Full-surface construction, outperforming single-point liners, increases liquid repellency and residual airflow.
- More reliable leak-resistance during transport and handling, due to improved Water Entry Pressure (WEP) resistance and competitive levels of Liquid Entry Pressure (LEP) resistance in most standard applications.
- For all flat-cap designs in applications from consumer chemicals to DOT and ADR-regulated packaging.
Gore Pulp Induction Liners
Gore Pulp Induction Liners provide reliable venting and tamper-evidence for agrochemicals including organic biostimulants.
- For agrochemical bottles (up to 5 l).
- Choose Standard Series or High Performance Series for more extreme chemistries or greater flow.
- Weldable installation ensures tamper-evidence.
- Membrane construction provides needed breathability for gas-scavenging chemicals and off-gassing liquids.
How Gore Vents Neutralize Three Packaging Threats
GORE Packaging Vents safely and reliably relieve pressure imbalances in situations that threaten to deform packaging:
Active Ingredients That Release or Consume Gases
Without venting, pressure build-ups can cause a container to bloat, leak or burst, while under-pressures can cause container collapse.
Changes in the External Environment
Sudden or extreme changes in the external environment will accelerate the deformation.
Containers Designed to Dispense Liquids
Without venting that continuously re-balances the internal and external pressures, the dispensing container may collapse.
Reasons to Team Up with Gore
Innovative Membrane Technology
We design and manufacture every vent we sell, and — unlike other suppliers — also every membrane that goes into them. Plus, customers worldwide rely on our robust global supply chain for ready access to the products and support resources they need.
Chemical Application Expertise
Over 25 years of partnering with leading chemical and cap & container manufacturers with technical expertise in off-gassing/oxygen-scavenging chemicals, fluid viscosity, surface tension, and proprietary testing methods such as Residual Airflow and LEP.
Technical Specifications
Order Number | 323G | 324G |
|---|---|---|
Typical Application | Bottles | |
Packaging Content |
| |
Product Performance Characteristics | ||
Typical Airflow at dP = 12 mbar | 0.7 l/h/cm2 | |
Water Entry Pressure (WEP) | > 1.4 bar | |
Traceability | On lot level | |
Membrane / Liner Construction | ePTFE / PE foam | |
Thickness | 1.1 mm | 1.9 mm |
Active Vent Area | Full Surface (Full diameter of liner) | |
Venting Method | Cap thread venting | |
* We have tested the Standard Series with a wide range of fluids. Contact Gore if you would like to learn more about how different viscosities have a direct impact on Residual Airflow.
** We have LEP-tested the Standard Series with a wide range of fluids. Contact Gore if you would like to learn more about how liquids with different surface tensions have a direct impact on Liquid Entry Pressure.
Order Number | 383G | 384G |
|---|---|---|
Typical Application | Bottles | |
Packaging Content |
| |
Product Performance Characteristics | ||
Typical Airflow at dP = 12 mbar | 1.8 l/h/cm2 | |
Water Entry Pressure (WEP) | > 1.4 bar | |
Traceability | On lot level | |
Membrane / Liner Construction | ePTFE / PE foam | |
Thickness | 1.1 mm | 1.9 mm |
Active Vent Area | Full Surface (Full diameter of liner) | |
Venting Method | Cap thread venting | |
* We have tested the High Roll-Off Series with a wide range of fluids. Contact Gore if you would like to learn more about how different viscosities have a direct impact on Residual Airflow.
** We have LEP-tested the High Roll-Off Series with a wide range of fluids. Contact Gore if you would like to learn more about how liquids with different surface tensions have a direct impact on Liquid Entry Pressure.
| Series Number | CM6B | CM6C | CM8C |
|---|---|---|---|
| Product Series | High Repellency Series | High Airflow Series | |
| Typical Airflow at dP = 12 mbara | 0.17 l/hb | 0.29 l/hb | 1.93 l/hb |
| Water Entry Pressure (WEP) | > 0.5 bar | > 0.5 bar | > 0.3 bar |
| Traceability | On lot level | ||
| Membrane / Liner Construction | ePTFE + PE + aluminum + PET + wax + pulp | ||
| Thickness | 1.0 mm | ||
| Active Vent Area | 0.6 mm | 2.0 mm | |
| Venting Method | Cap thread venting | ||
a This value is based on an optimum closure bottle design in combination with a typical closure torque.
b This value is based on a roll good slit width of 52.3 mm intended for disc diameters up to 46.3 mm.
c This value is based on a roll good slit width of 69.9 mm intended for disc diameters up to 63.9 mm.
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FOR INDUSTRIAL USE ONLY
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.
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