Every time we unscrew a sealed bottle cap, have you noticed that there is a ring connecting the two parts in the middle of the bottle cap and the plastic bottle? In fact, this small circle is called Mask Package, which is a typical injection molding product, easy to transport, mostly plastic material, uniform texture, and good insulation.

Features of Mask Package material:

1, PET is the main variety of thermoplastic polyester, commonly known as polyester resin.

2, PET is a terephthalic acid and ethylene glycol condensation, together with PBT collectively known as thermoplastic polyester, or saturated polyester.

3. PET is a milky white or pre-yellow highly crystalline polymer with a smooth and glossy surface.

4, PET creep resistance, fatigue resistance, friction resistance and dimensional stability is good, small wear and high hardness, with large toughness of thermoplastics;

5, PET electrical insulation performance is good, little affected by temperature, but poor corona resistance.

6, ET non-toxic, weather resistance, good stability against chemicals, low water absorption, resistance to weak acids and organic solvents.

PET is a milky white or light yellow highly crystalline polymer with a smooth and glossy surface. Creep resistance, fatigue resistance, friction resistance and dimensional stability is good, small wear and high hardness, with large toughness of thermoplastics: good electrical insulation performance, little affected by temperature, but poor corona resistance. Non-toxic, weather resistance, good stability against chemicals, low water absorption, resistance to weak acids and organic solvents, but not heat resistant water immersion, not alkali resistance. PET resin has high glass transition temperature, slow crystallization rate, long molding cycle, long molding cycle, large molding shrinkage, poor dimensional stability, brittle crystallization molding, low heat resistance.

Mask Package https://www.plasticsproduct.com/6inchMaskPackage.html