Filters and Filtration

Commonly referred to as Filter Foams, we have supplied reticulated foams for many years as filters for both fluid and air applications.

These filters can be supplied as straight-forward rectangles, with either flat or profiled (egg-box) surface finishes. But we have the technology to go further, and cut them into some rather unusual shapes.

For Filtration, the irregular surface of the profile foam, or the CNC-cut shapes are very important because they increase the surface area of the filter making it much more efficient than a plain flat surface.

Fluid Filtration

Tradionally, fluid (wet) filters are polyether-based foam and are made in various colours. It is fairly common practice for 3 or 4 different colours to be used within a range, with each colour donating a different pore size.

The filters can be found in the following applications:

Pond Filters
Graduated Filter Packs
Locomotive Air Intakes
Paint Application Systems
Colour Paint Sample Applicators
Polish Applicators
Pipeline ‘Pigs’

Air Filtration

Tradionally, filters that are used solely for air (dry) filtration are made using a polyester-based reticulated foam. These are predominantly black or dark-grey.

Air Conditioning Systems
Vacuum Cleaners
Automotive Air Intakes

Sometimes 2 different grades are laminated together to work as a graduated filter.

Depending on the minimum particle size that needs to be eliminated, these graduated filters can have 3 layers.