Corrosion Resistance
Lightweight nonwovens which provide chemical resistance to composite structures and prevent galvanic corrosion.
Our nonwovens are used in batteries, vehicles, pipes and tanks to provide chemical resistance, prevent corrosion or to fulfil a purpose within a highly corrosive environment. Typical applications are as a galvanic corrosion barrier, corrosion resistant surface layer or as a separator in battery technologies.
Properties
Focus on Galvanic Corrosion
A lightweight barrier
Our dielectric nonwovens provide an extremely uniform, lightweight barrier to prevent the occurrence of galvanic corrosion in aircraft and automotive components. In composites galvanic corrosion can occur when two dissimilar conductive materials, such as a carbon reinforcement and aluminium honeycomb, come into contact in the presence of an electrolyte (such as water). This creates a pathway for electron transfer and results in surface corrosion and extensive pitting of the structure, which, if undetected, may cause structural failure. The issue is not limited to aluminium and can occur with other metals and alloys, such as steel or stainless steel, in certain environmental conditions. Our lightweight dielectric nonwovens are used to prevent galvanic corrosion. They are incorporated between the carbon and aluminium, separating them. The dielectric veil acts as an electrically isolating layer, providing a barrier to galvanic corrosion by preventing the electrochemical reaction and stopping the degradation of the structure.
Fibre Type
Glass and polyester
Properties
Corrosion resitant, dielectric, acid resistant, drape-able, high temp resistance, high thermal stability and wear resistance
Areal Weights
3 - 400 g/m² (glass) and 4 - 200 g/m² (polyester)
Battery Separators
Related Content
As well as providing corrosion resistance to composite ur chemically resistant glass nonwovens, including E, C & ECR glass, are also designed to meet the requirements of lead acid and lithium thionyl chloride battery systems.
Lightweight Performance
- Minimum weight addition
- From 3 g/m²
- Excellent corrosion resistance
Multifunctional
- High quality resin rich finish
- Corrosion and wear resistance
- Resin flow media to ensure even wet out with no dry spots
Compatibility
- Easy to handle
- Suitable for use in all composite manufacturing techniques
- Compatible with all common resin systems
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Typical Applications
Bodywork
Our lightweight glass and polyester nonwovens provide an extremely uniform, lightweight barrier to prevent the occurrence of galvanic corrosion in the vehicle chassis and frame.
Pipes and Roll Covers
Our chemically resistant carbon and ECR glass nonwovens provide an effective surfacing layer for composite vessels and pipework used to transport corrosive materials in the chemicals industry. The use of a surface veil improves corrosion resistance and ultimately increases the service time of the pipes & vessels.
Aerostructures
Our dielectric nonwovens provide an extremely uniform, lightweight and easy to incorporate barrier to prevent the occurrence of galvanic corrosion in aircraft components.
Cell separators
Our range of chemically resistant glass products, including E, C & ECR glass, have been designed to meet the requirements of lead acid battery systems. These materials are corrosion resistant and suitable for use as separators, slip sheets, pasting papers and glass retainer mats. of prothestics.
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Learn more about our Composite solutions below:
Markets
James Cropper Advanced Materials customers are among the largest aerospace manufacturers in the world, including many Fortune 100 and 500 companies. Our portfolio of products are in use on most commercial aircraft, delivering surface finish solutions, improved processing, light weighting efficiency solutions, and more.
A multitude of solutions for automotive composites, ranging from Class A surface finish to friction material substrates and composite EV battery enclosures.
Our nonwovens are used in a broad range of applications in the industrial sector, including fire protection, high temperature insulation, wear resistance and corrosion resistance. They provide a performance benefit through enhanced functionality or by increasing the longevity of a structure or component.
James Cropper has developed a range of materials specifically designed for use in both established and emerging power generation & storage systems. Typical applications include electrode scaffolds, current collectors, adhesive carriers and battery separators.
James Cropper has supplied materials into the Defence sector for over 25 years. Our success lies in our ability to develop materials which meet specifications that other providers can't fulfil. This means that we work closely with our customers to design a product to suit specific application requirements.