PVC Plastic Balls. PVC is a chemically stable material, which shows little change in molecular structure, and also exhibits little change in its mechanical strength.

• Plastic ball grades are not the same as those for precision balls
• Polyvinyl chloride
• It is relatively hard and can be polished to a shine.
• It is easily worked or machined and has good chemical and biological resistance. Zero water absorption in 24 hours
• Heat Deflection Temperature 176 F / 80 C. Rockwell Hardness 115