3.5mm Diameter Solid Delrin Polyoxymethylene (POM) / Celcon Plastic Ball

Delrin Balls: Delrin is the name commonly used for the less commonly known polyoxymethylene (POM) acetal plastic. It has high mechanical strength and rigidity, is tough and tolerant to repeated impacts and has a good long term fatigue endurance. It has excellent resistance to petroleum based solvents, moisture and other neutral chemicals. Its has good electrical insulating properties and self lubricates in use. It can be operated within a wide operating temperature range up to 150 Deg C.
Note: There are many factors which may influence the performance of this product, temperature, chemical exposure etc. - always test for your own application before selecting large quantities of this product.
Benefits: Self lubricating, tough, durable

Notes: Delrin balls are generally produced in an almost pure white colour however dependent on manufacturing origin can be off white or yellowy white, yellow, orange, blue, brown, black and grays are all common. There is no difference in the material properties in different colours - it is merely the pigment.
These balls will not float.