What is a Plastic PP Sunscreen Cream Bottle?

It is a container for sunscreen where the primary material is Polypropylene (PP) plastic. This refers to the rigid or semi-rigid bottle itself, which is typically paired with a dispenser like a pump, flip-top cap, or screw cap.

• Plastic: Indicates the general material category, making the bottle lightweight and shatterproof.

• PP (Polypropylene): This is the specific type of plastic. It's chosen for its excellent chemical resistance, durability, and compatibility with cosmetic formulas.

• Sunscreen Cream: Denotes the product it's designed to hold—a viscous, emulsion-based formula with active ingredients for sun protection.

Key Characteristics of PP for Sunscreen Packaging

PP plastic offers several critical advantages for sunscreen:

1. Excellent Chemical Resistance: Sunscreen formulas contain active chemical filters (like avobenzone, oxybenzone) and other ingredients that can degrade or react with certain plastics. PP is inert and highly resistant, ensuring the bottle won't break down and the formula remains stable.

2. Good Barrier Properties: PP provides a good barrier against moisture, helping to prevent the emulsion (water-in-oil or oil-in-water) in the sunscreen from separating or evaporating.

3. Durability and Rigidity: It's a strong plastic that can withstand the rigors of travel, being tossed in a beach bag, or dropped on the ground without cracking.

4. Heat Resistance: PP has a relatively high melting point. This is crucial for sunscreen, which is often stored in hot environments like cars, beach bags, or sunny bathrooms. It helps the bottle maintain its shape and integrity.

5. Compatibility with Opaque Colors: Sunscreen requires protection from light to prevent the degradation of its active ingredients. PP can be easily manufactured in opaque white, blue, or other colors to block UV light and protect the formula inside.

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