Perfoplast is a generic name for perforated plastic materials. Many perforations are possible in plastic sheet materials. The most important and most used plastics are HDPE / polyethylene and PP / polypropylene but also PVC. In general the perforations for filters / strainers are mostly round. The smallest diameters that give good perforating results are 2 mm.
- Excellent seawater resistance
- Durable, smooth, shiny, strong, firm
- Chemical resistance
- No maintenance required
- Good machinability and weldability
- 10 times lighter than steel
- Insulator, not magnetic
- Excellent UV resistance
- Excellent impact strength
The size of the holes are always indicated in combination with a pattern or stitch. An example of a pattern is the equilateral stitch. This is the most common pattern for filters and strainers. This stitch is designed in an isosceles triangle. The most common is R2T3 or R3T5. The diameter of the holes are 3 mm and the center to center distance is 5 mm.
R = diameter of the hole in mm;
T = stitch or center to center distance in mm.
|Diameter hole (mm)||Stitch/center distance (mm)||Permeability (%)|
The perforated plastic sheets have great application possibilities, like water filters. Filters made of Perfoplast have excellent corrosion resistance in seawater. Furthermore it is much lighter and cheaper than steel.
Read more about seawater filters made of Perfoplast.