Controlled Gas Exchange for Critical Packaging
Maintain Package Integrity While Controlling Gas Exchange and Moisture
Gore ePTFE packaging liner membranes control gas transmission and moisture exchange in pharmaceutical, specialty chemical, and food packaging — preserving product integrity while preventing container deformation from pressure build-up or collapse.
Gore ePTFE liner membranes for pharmaceutical, specialty chemical, and food packaging — controlling gas exchange and moisture while maintaining product integrity. These liner membranes are integrated into packaging closures or container walls to allow selective gas permeation (controlled atmosphere) while blocking liquid egress and contamination ingress. Chemically inert ePTFE is compatible with virtually all pharmaceutical active ingredients, aggressive specialty chemicals, and food-contact applications. FDA-compliant materials support regulatory submissions for food and drug packaging. Custom cut to size for any closure or container format.
Why Choose Gore Packaging Liners?
Chemically Inert ePTFE — Compatible With Aggressive Contents
ePTFE is one of the most chemically inert materials available, with resistance to virtually all organic and inorganic chemicals including strong acids, bases, oxidizers, and solvents. Packaging liners made from ePTFE will not react with, absorb, or release contamination into pharmaceutical actives, hydrogen peroxide, peracetic acid, sodium hypochlorite, or specialty agrochemicals — eliminating contamination concerns that affect other liner materials.
FDA-Compliant Materials for Regulated Packaging
Gore packaging liner membranes use FDA-compliant ePTFE materials suitable for food and pharmaceutical contact applications. Material certifications and regulatory support documentation are available to assist with 21 CFR food contact compliance, pharmaceutical DMF filings, and EU food contact regulation submissions — reducing the regulatory documentation burden for manufacturers and CMOs.
Custom Cut to Any Closure Geometry
Liner membranes are die-cut to the exact dimensions of drum closures, container caps, specialty packaging fitments, and custom aperture geometries. No standard size constraints mean the liner membrane area can be optimized for the required gas transmission rate and pressure differential, while fitting existing closure tooling without modification.
Technical Specifications
- Membrane Material
- Expanded PTFE (ePTFE)
- Chemical Resistance
- Broad-spectrum — acids, bases, oxidizers, solvents
- Regulatory Compliance
- FDA-compliant materials (21 CFR applicable)
- Function
- Controlled gas exchange / moisture management
- Liquid Containment
- Blocks liquid egress under positive pressure
- Temperature Range
- -200°C to +260°C (ePTFE continuous)
- Shape
- Custom die-cut to any geometry
- Testing Compliance
- DOT / ADR transport testing compatible
Applications
- Pharmaceutical primary and secondary packaging closures requiring controlled atmosphere
- Specialty chemical drums and IBCs with oxidizer or corrosive liquid contents
- Food packaging with controlled atmosphere requirements (modified atmosphere packaging)
- Agrochemical container liners for pesticide, herbicide, and fertilizer products
- Hydrogen peroxide and peracetic acid packaging vent liners
- Hazardous goods packaging meeting DOT/ADR transport venting requirements
Industries Served
Part Numbers
Reference these part numbers when requesting a quote. Contact RSTECH Electronics for pricing, availability, and samples in Israel.
Part numbers sourced from gore.com. Custom configurations and additional variants may be available — contact RSTECH for details.
Frequently Asked Questions
What regulatory documentation is available for FDA food and drug contact compliance?
Gore provides material certifications confirming ePTFE compliance with 21 CFR regulations applicable to food contact and pharmaceutical applications. Drug Master File (DMF) support documentation may be available for pharmaceutical packaging programs. Contact RSTECH Electronics to request applicable certifications for your application and regulatory jurisdiction.
Can packaging liners be used with hydrogen peroxide and other strong oxidizers?
Yes. ePTFE is chemically inert to hydrogen peroxide at concentrations up to 90% and to peracetic acid, sodium hypochlorite, and other strong oxidizers routinely used in pharmaceutical and food processing. This is a primary application for Gore packaging liners, where competing liner materials (silicone, rubber) degrade and cause seal failure.
How is the liner membrane integrated into an existing closure design?
The die-cut liner membrane is typically inserted under the closure cap or into a dedicated recess in the closure molding. Gore provides application engineering guidance for liner seat design, compression requirements, and torque specifications. For existing closures, retrofit liner insertion is possible in many cases — contact RSTECH for feasibility assessment.
Are Gore packaging liners available for hazardous goods packaging meeting DOT and ADR requirements?
Yes. Gore packaging vent membranes including liner configurations have been validated in DOT and ADR transport testing programs for hazardous goods packaging. Relevant test data and compliance documentation are available. Contact RSTECH Electronics for specific transport regulation compliance information for your packaging program.
Ready to source Packaging Liners in Israel?
Contact RSTECH Electronics — your authorized Gore representative in Israel.