SPC Technologies manufactures sintered porous plastic components for filtration, venting, fluid transfer, media support, dispensing and many other specialist applications. Our porous plastic materials are used where controlled permeability, repeatable pore structure and reliable component performance are important.
Porous plastic is a semi-rigid, open-cell material produced by sintering polymer particles into a self-supporting structure. The interconnected pores allow air, gas or liquid to move through the material in a controlled way, making it useful for filtration, venting, wicking, silencing, support media and other engineered functions. By selecting the right pore size, thickness, polymer and geometry, the material can be matched to the demands of the final application.
What porous plastic is used for
Porous plastic is used in a wide range of applications because it combines structural stability with controlled flow behaviour. Depending on the design, it may act as a filter, vent, wick, support frit, silencer, shutoff element or fluid delivery component.
- Water, air and gas filtration
- Silencing and venting
- Wicking and controlled fluid transfer
- Pipette filters and liquid handling
- Chromatography and SPE frits
- Battery vents and flame arrestors
- Sensor protection
- Vacuum hold down
- Dialysis filters and support
- Topical applicators
Material options and performance characteristics
SPC Technologies can manufacture porous plastic from a range of polymers, with polyolefins such as polyethylene and polypropylene often providing the most cost-effective solution for many applications. Material selection is based on the needs of the application, which may include chemical resistance, mechanical strength, hydrophobic or hydrophilic behaviour, self-sealing response or regulatory suitability.
Pore size and permeability can be selected according to the function of the component. In filtration applications this affects retention and flow rate. In venting or wicking applications it influences gas movement or liquid transfer. In support and dispensing applications it may affect how the component behaves as part of a wider device or system.
Many of our materials are available from polymers with FDA and Pharmacopoeia approvals. If your application requires specific certifications or material controls, these can be considered from the beginning of the development process.
From standard products to custom development
Some applications are served effectively by standard porous sheet materials and converted formats. Others require a more tailored approach, including custom geometry, tuned permeability, modified surface behaviour or integration into an assembly-specific component.
SPC Technologies works with customers on both established and new porous plastic applications. We can help evaluate material form, pore size, thickness, polymer type and manufacturability based on the demands of the end product.
To see available sheet specifications, please view our standard sheet materials. If you are developing a new porous plastic component, please contact SPC Technologies to discuss your application.
Manufactured in the UK
All of our products are manufactured in the UK under an ISO 9001:2015 accredited quality system. This supports consistency, traceability and reliable production for both standard and bespoke porous plastic components.