28mm PP Plastic Screw Caps for Water Bottles – Food Grade

Description

BAITONG 28mm PP plastic screw caps are bottle closures for carbonated beverage manufacturers, beverage brands, and contract packagers seeking reliable, food-grade sealing. Manufactured from high-grade polypropylene with advanced techniques, these bottle lids and closures deliver consistent thread accuracy, strong barrier properties, and leak-proof sealing across high-speed filling lines. Recyclable PP construction and full customization options support brand differentiation and sustainable packaging goals.

Key Features

Food-grade PP material

• High-grade polypropylene with chemical inertness; prevents flavor transfer or contamination of beverage contents

Leak-proof screw-thread sealing

• Precision thread geometry ensures secure retention during transport and smooth application on high-speed capping lines

Strong barrier properties

• Controlled internal sealing surface resists moisture ingress and gas transmission, extending product shelf life

Tamper-evident options

• Optional tamper-evident features provide visible proof of package integrity and support brand protection

Consumer-friendly design

• Ergonomic profile ensures easy grip and opening, while optimized torque prevents over-tightening

Specifications

Materials & Finish

Polypropylene (PP):

• High-grade thermoplastic with chemical, impact, and temperature resistance; food-contact-safe and recyclable

Thread profile:

• Precision-molded geometry for consistent torque, smooth capping, and secure retention

Surface options:

• Matte, available for brand differentiation

Applications

Coca-Cola、Sprite carbonated beverages

• Secure sealing prevents leakage during active. Chemical inertness prevents ingredient interaction with closure materials

Global brand distribution

• Consistent quality maintained across international markets and distribution channels

Certifications

Food-grade certification

• Closures comply with international food safety standards for beverage packaging

Third-party audits

• Regular independent audits validate quality management and hygiene compliance

Packing & Logistics

Protective packaging

• Damage-resistant packaging systems for safe transport and efficient handling

Container optimization

• Standardized configurations maximize container utilization and reduce international shipping costs

Storage guidance

• Climate-controlled storage recommendations maintain closure properties during extended warehousing

Documentation

• We can provide product specifications, handling requirements, and quality verification documents

Service

• 24-hour online service, pre-sale and after-sale service

Custom development:

• Engineering team collaboration for application-specific packaging solutions

Supply chain flexibility:

• Order volumes and delivery schedules adapted to customer production and inventory needs

FAQ

Q: What is a 28mm PP screw cap?
A: A 28mm PP screw cap is a bottle closure with a 28mm neck finish, molded from high-grade polypropylene. It screws onto the bottle neck to seal the contents, prevent leakage, and preserve product freshness.

Q: What bottles do these 28mm caps fit?
A: These caps fit bottles with a standard 28mm neck finish — widely used for Coca-Cola、Sprite carbonated beverages, and other beverage packaging.

Q: Are these caps food-safe?
A: Yes. The caps are made of food-grade polypropylene (PP), a chemically inert and recyclable material that prevents flavor transfer or contamination of beverage contents

Q: Can the caps be customized with our logo and colors?
A: Yes. BAITONG offers custom logo and color options.

Q: How do these caps keep bottles sealed?
A: The precision screw-thread design creates a secure seal that resists moisture ingress and gas transmission, with tamper-evident options available to verify package integrity.