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Porous plastic board for filtration applications

We focus on providing cost-effective solutions for various filtration, controlled flow, and separation applications of liquids and gases. The GR series porous plastics are recognized as leading products for controlled porosity molded parts and plastic shapes, widely used in industrial, medical, and consumer markets.

We offer a variety of porous plastic materials and molded parts, including slabs, bars, pipes, and sheets. Our porous plastic products are an ideal choice for precise control of liquids and gases, including filtration, diffusion, release, and separation.

Our porous plates are made of high-purity resin and free sintered material (plastic), which are approved by the FDA and the US Department of Agriculture to produce filter media, providing excellent ultrafine particle filtration performance and outstanding gas and liquid flowability. The filtration varies depending on the micrometer size. They can be used for filtering particles, diffusing or emitting gases, or for core suction applications.

 

Applications include medical filters, battery vents, reservoirs, aerators, mufflers, and fluidized beds.

The material has good processability and can also be used for permeable or breathable fixtures, such as vacuum workbenches, ceramic grouting dehydration molds, etc.

 

We offer two varieties with a filtration efficiency of 99.8%. The porosity of all our boards is about 35-40% of the void volume. The material can be treated with hydrophilic or hydrophobic properties. Hydrophilic sheets have a strong affinity for liquids and actively absorb moisture and discharge aqueous solutions. Hydrophobic sheets or pipes will not actively absorb moisture, and if there is a pressure difference, they also have good breathability and permeability.

These boards have excellent corrosion resistance and chemical resistance to most acids, alkalis, solvents, and hydrocarbon based fuels. Our boards can be sterilized with gamma or ethylene oxide. It can operate safely at intermittent temperatures between 80-100 ℃.  

*Hydrophobicity=repelling water

**Hydrophilicity=filtered water

 

Advantages of porous plastic materials
Porous plastics have excellent toughness, high physical strength, and lightweight, providing sturdy, durable, and easy to operate components.

Lower cost/inexpensive molds

Repeatable performance - controllable porosity

Sterilizable

Chemical Corrosion Resistance - Suitable for most acids, bases, solvents, and hydrocarbons

High purity - FDA/USDA approved material

High strength, lightweight - meets assembly requirements

Dual filtering function - can be used as both a surface filter and a depth filter simultaneously

Hydrophilicity, hydrophobicity, or self sealing

 

Porous plastic standard material system
-Ultra high molecular weight polyethylene (UHMW-PE) - provides sheets, rods, and pipes

The aperture can provide 5-10um; 10um;  20um; 30um ;  40um; 50um; (Hydrophobic and Hydrophilic Versions)

-PE/PP copolymer - provides sheet&rod&pipe materials

The pore size is only provided between 90-100um; (hydrophobic and hydrophilic versions)




Product Application
Our precision molded porous plastic parts and shapes are widely used in the industrial, medical, and consumer goods markets.

Typical applications include:

Ceramic dehydration forming process working mold vacuum adsorption fixture
Spray nozzle battery fuse (vent)
Biomedical Filter Serum Filter
Catheter vent chromatography and SPE filter
CO2 diffuser and bubbler DNA sampling filter
Flow control device chemical fluidized bed
Fragrance release reservoir industrial filter
Ink roller liquid storage tank
Lubricating oil tank microphone windshield
Pipette suction head filter pneumatic muffler
Non mechanical self sealing valves and parts for water filtration and purification
Waste and Freshwater Treatment Filter Support Plate