Nickel Foil
Expanded Metal Foil
Expanded Metal Foil, supplied by C-Thru Metals, is a lightweight, high-performance material used across critical industries including energy storage, aerospace, filtration, automotive, and electronics. Thanks to its unique open lattice structure, it offers superior conductivity, structural support, and customisability over traditional metal foils or woven mesh.
Why Choose C-Thru Expanded Metal Foil?
- Up to 90% open area = significant weight savings
- Greater surface area = improved conductivity and adhesion of the electrolyte
- Lubricant-free = ready for immediate use, less processing
- AI-powered manufacturing = fewer defects- greater conductivity, faster lead times
- 90% less waste = more sustainable & cost-effective
- Certified to AS9100D & ISO 9001:2015
- Available in ultra-thin gauges and wide-format coils
Applications
Explore how our expanded metal foil enhances performance in five key applications:
Batteries
Expanded Metal Foil for Batteries

Key Advantages
- Works as anode/cathode current collectors
- Enhanced surface area for better electrolyte conductivity
- Stronger adhesion for powdered electrolyte
- Up to 90% weight savings — ideal for EVs and eVTOLs
- Enables faster charging, longer battery life, and more efficient cells
Manufacturing Benefits:
- AI-powered tooling ensures unmatched consistency
- Lubricant-free = no cleaning, no added cost
- Rapid lead times thanks to automation
- 90% less waste = sustainable, cost-effective production
Lightning Strike Protection
Expanded Metal Foil for Lightning Strike Protection

Performance:
- Disperses lightning energy across component surfaces
- Prevents damage to carbon fibre/composite structures
- Used in aerospace and renewable energy sectors (e.g., wind turbines)
Why C-Thru:
- AI-driven, defect-minimising production
- Stronger, more reliable material with consistent conductivity
- Certified to AS9100D & ISO 9001:2015 for aerospace use
Industrial Filtration
Expanded Metal Foil for Industrial Filtration

Applications:
- Custom pore sizes down to 250 microns (.010”)
- Used in membrane support, oil/gas separation, HVAC, and more
- Supports flame/spark arrestors for combustion systems
Customisation:
- 35+ years of bespoke tooling expertise
- Can be tailored to customer-specific “filter rating” targets
- Combines with other filtration media for complex assemblies
Automotive
Expanded Metal Foil for Automotive Applications

Use Cases:
- Gaskets, catalytic converters, air inlet screens
- Fuel and oil filters, heating elements
- Speaker grills and EMI shielding in electronic modules
Benefits:
- Lightweight for motorsport and high-efficiency designs
- Conformable and versatile
- Withstands heat, vibration, and corrosive environments
EMI/RFI Shielding
Expanded Metal Foil for EMI/RFI Shielding

Functionality:
- Acts as a medium to redistribute electrical fields
- Prevents signal interference in sensitive electronics
- Provides continuous electrical path for consistent conductivity
Applications:
- Aerospace/military electronics, cables, enclosures
- Gaskets, carbon fibre products, and electrical systems
Key Features:
- Pliable and conformable for complex shapes
- Ultra-consistent foil = higher shielding effectiveness
Please use the contact us page or send an enquiry to sales@avocetsteel.co.uk and a member of our team will be in touch.
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Certificates
We are proud to have been awarded ISO 9001 certification, an internationally recognised standard that ensures services meet the needs of clients through an effective quality management system. Our decision to work towards ISO 9001 certification demonstrates our commitment to providing a high-quality and consistent service to our clients and our ongoing investment in technology, development and processes and procedures.
You can download a copy of our ISO 9001 : 2015 certificate here.
You can download a copy of our ISO 14001 : 2015 certificate here.
You can download a copy of our ISO 45001 : 2018 certificate here.
