100PCS Plastic Ball Solid PP Polypropylene Cosmetic Bottle Round Ball Dia 4.5mm

Description

100PCS Plastic Ball Solid PP Polypropylene Cosmetic Bottle Round Ball Dia 4.5mm
Product Name
POM Plastic Ball
(Polyformaldehyde)
PP Plastic Ball
(Polypropylene)
Level
GO-G3
±(0.01-0.05mm)
Go-G3
±(0.01-0.05mmm)
Density
~1.4 g/cm3
~0.88g/cm3
Performance
Polyoxymethylene is also known as polyoxymethylene (POM). It has good physical, mechanical and chemical properties, especially excellent friction resistance.
It is similar to nylon. But slightly harder than nylon, slightly denser, less noise, less friction, etc. It can be used in the temperature range of -40~130°C for a long time.
Its wear resistance and self-lubricating properties are also superior to most engineering plastics, and it has good oil resistance and peroxide resistance.
It has good resistance to chemicals, low density (density less than water), low water absorption, high melting point in thermoplastics, good electrical insulator and low dielectric coefficient, also has high resistance to chemical substances.
Such as acid, strong alkali, alcohol, many inorganic genera, adaptable to petroleum products and quality, salt solutions, solvents, gasoline, water, and
Can all kinds of properties of neutral chemical petroleum, grease, cleaning agents, fruit juice and products. Milk, etc., but not resistant to aromatic hydrocarbons and chlorates
Purpose
It is usually used for sliding devices of tables and drawers, bearings, rollers, valves and electronic devices, sailing devices, etc.
Used in cosmetic bead bottles, for level calibration indicators, petroleum or acidic and alkaline liquids, etc.