Please enter a search term*
AS-Lok 28mm Plastic Closure
AS-Lok 28mm Plastic Closure
AS-Lok 28mm Plastic Closure
Smart Venting Design
Return to bottled-water

AS-Lok 28mm

Closure Systems International’s AS-Lok 28mm closure is perfect for juices, sport drinks, teas and other non-carbonated beverages.

This one-piece / linerless cap has a robust seal design and is sterilization-friendly, making it ideal for aseptically filled products.

High Performance Features & Benefits

  • 28mm one-piece / linerless design
  • Meets requirements for aseptic filling and closure application on PCO 1810 bottle finishes
  • Robust seal performance for product quality and freshness
    ✓ Three-point seal design: outside, top, & inside to preserve product integrity
    ✓ Seal technology and resin material combination prevent finish distortion and ensure a hermetic seal throughout the life of the package
  • High quality HDPE material for high stress crack resistance
  • Lubricant-free HDPE for stable application and opening performance
  • Compatible with existing aseptic lines
  • Suitable for wet and dry sterilization methods
  • Secure tamper evident band for consumer safety and product integrity
  • “Smart venting” design feature providing early pressure release and longer thread engagement after venting
    ✓ Maximum anti-blow-off security
    ✓ Safe consumer opening even if post-opening product spoilage occurs

Total Closure & Capping Systems Solutions

  • In addition to quality closures, CSI provides capping equipment and unparalleled customer and technical service, globally.
  • CSI's closure systems solutions help customers maximize profits by increasing the marketability of their brands and optimizing their total cost of operations.
Purchase Requests or Questions?

Product Detail

Primary Market Segments Served

Bottled Water, Non Carbonated Soft Drinks

Application/Fill Processes


Material Types


Closure Diameters


Bottle Finishes


Bottle/Package Types

Plastic Non-Returnable Bottles

Knurl Options


Seal Types

One-Piece Linerless

Tamper Evidence

Tamper Evident Band - Standard

Brand Names


Purchase Requests or Questions?

Research & Development: Innovation Capabilities

At CSI, R&D is a crucial component of innovation and a key factor in developing new competitive advantages. CSI follows a disciplined New Product Development process, utilizes a creative space for ideation known as Studio C and provides differentiated technology platforms known as Studio C Creations.

Learn More
Product Stewardship Responsible and Efficient Operations Partner to promote sustainable progress Design & Raw Materials Distribution Use Disposal / Recovery Operations