Air filters have generally been made from paper or cotton but as technology has grown and developed new materials were research to provide better retention from dust, pollen, mould and bacteria from the air.
Foam is now widely used in different industries as an air filter as depending on the grade and thickness of foam employed, an oil-wetted foam filter element can offer minimal airflow restriction or very high dirt capacity.
Acoustafoam Limited is the market leaders in technology and innovation when it comes to manufacturing polyurethane foam products. We produce high quality products from over 200 types of foam. Within this range of technical and comfort polyurethanes we have a filtration section. Reticulated foams are also known as filter foams and skeleton foam due to the openness of the manufacturing technique.
Our polyurethane filter foams are made from both polyester and polyether resin.
Acoustafom offer a range of filter foams with 8PPI cell to 110PPI cell (pores per inch). The filter foam process of reticulation gives the product an open structure of low restriction the more open the cells are (Low PPI higher flow with less restriction and high PPI less flow with better restriction).
EsterCell is a range of filter foams that are non FR and used as a lower cost option where fire is not a risk. Areas such as outdoor applications and small components with no fire hazards and non-water contact.
Ester cells are available in PPI range of 10, 15, 20, 30, 35, 45, 60 & 80 (Colour black)
PPI 60 is available in black, red, blue, yellow and green
EsterCell FR is our fire retardant range that is used in industrial filtration with no water contact such as air, gas, fume and oil filers (Indoor and fire hazard areas)
Ester cells FR are available in PPI range of 10, 20, 30, 45, 60 & 80 (Colour black)
EtherCell filter foam for water contact applications such as fish filtration and cushions in an outdoor environment that may become wet.
Ester cells filter foam are available in PPI range of 10, 20, 30, 45 & 60 (Colours blue, green, red, cream and white)
FireCell is A class O range of impregnated filter foams UL 94/HF1and BS 476 Class O fire rated. FireCell are available in PPI range of 10, 20, 25, 30, 50 (Colour black).
Polyester and Polyether
Polyester foams are limited to applications which do not involve contact with water. Polyester used for air filtration.
Polyester reticulated foams are available in fire retardant (FR) grades FMVSS302 industry standard. Other standards have been developed for the electronic and medical industries.
Polyester Foams are used untreated as liquid and gas filters in the processed form as ceramic filters and carrier medium (ink carriers).
Polyether foams are used with great success in aquatic and fish keeping applications.
Polyether foams are also used for biological water treatment filtration projects.
Here at Acoustafoam we manufacture filter foams for the following applications:
Air filters, Outdoor furniture seating, Marine and boat seating, Oil filters, Water filters, Microphone covers, Gas and cooker filters, Ink jet cartridge filters, Impact and blast absorbers, Insect restriction air movement systems, Automotive filtration, Aquatic filtration, paint rollers and application pads, Respiration filters and controlled air flow masks, Air, Rail and Construction applications.
For further information please contact our sales team on 01952 581340