High density polyethylene (HDPE) is a semi-crystalline thermoplastic plastic with many uses and properties:

• Strength: HDPE is strong and durable, with excellent impact strength.

• Chemical resistance: HDPE is resistant to corrosion, bacteria, and chemical buildup.

• Lightweight: HDPE is lightweight, which can be beneficial for bottles.

• Easy to use: HDPE packaging can have an integrated handle and pouring aperture, making it easy to grip and pour.

• Antimicrobial: Antimicrobial HDPE sheet can protect against bacteria, algae, and fungi that cause stains and odors. 

• Recyclable: HDPE bottles are 100% recyclable and can be used again and again.