1. Excellent Rigidity and Hardness

• Sturdy and Durable: AS plastic is much more rigid than other common cosmetic plastics like PP (Polypropylene) or PE (Polyethylene). It doesn't feel flimsy or cheap.

• Resists Deformation: It maintains its shape well under pressure and is less prone to scratching or denting during shipping and handling. This makes it ideal for jars and thick-walled bottles.

2. Good Chemical Resistance

• Holds Its Own: AS plastic has good resistance to water, alcohols, dilute acids, dilute alkalis, and oils. This is crucial for housing a wide range of cosmetic formulations without the risk of the container degrading, cracking, or becoming cloudy.

• Barrier Properties: It provides a reasonable barrier against moisture and gases, helping to preserve the integrity and shelf life of the product inside (though for highly sensitive formulations, an additional inner liner might be used).