Sintered Felt

1. Exceptional Porosity & Low Pressure Drop

Thanks to the sintered fiber network structure, these felts offer extremely high porosity (often 60–85% or more) and excellent through-flow characteristics. For example, one data set shows 85% porosity with the potential for 20× higher flow compared to traditional media.

This means for the same face area you can achieve higher throughput or lower pressure drop — a win in energy-sensitive or high-flow systems.

2. Uniform & Stable Pore Structure – Depth Filtration Capability

Unlike plain woven meshes which provide surface filtration, sintered felt offers depth filtration, meaning contaminants are trapped within the volume of the material, not just on the surface.

In-depth capture means less frequent replacement or cleaning downtime.

3. High Mechanical Strength & Thermal / Chemical Robustness

The sintered bond of metal fibers ensures high strength (in some cases up to tens of MPa breaking strength) and good performance under thermal shock and mechanical stress.

Many variants survive elevated temperatures (for example, standard stainless felt up to ~600 °C, FeCrAl up to ~1000 °C) and aggressive chemical environments.

This makes them ideal for high-temperature filtration, hot gas or liquid streams, and corrosive process environments.

4. Cleanability & Reusability

Because of their open-cell and robust structure, sintered felts can often be cleaned (via back-flush, back-pulse, ultrasonic cleaning, chemical cleaning) and re-used, significantly reducing lifecycle cost and waste.

This is especially valuable in continuous process systems, where downtime is costly.

5. Tailor-Made Layering & Composite Designs

Innovations now allow multi-layer or graded structures (different pore sizes stacked) and composite designs (e.g., fiber felt sintered onto woven mesh or foam core) to optimise for gradient filtration, high dirt holding capacity, and durability.