Porous ptfe grades are produced from suspension ptfe powders and specifically they are a mixture of different particle size distributions and hardness degrees to achieve the desired level of porosity.

Available at Guarniflon^® a wide range of PTFE balls with standard diameters from 1 to 180 mm.
The most common PTFE materials used are virgin PTFE and PTFE grades filled with pigments in different colors such as blue, yellow, red, orange, etc.