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Closure Systems International to Showcase Full Capper Portfolio and Defender-Lok™ Child-Resistant Closure at PACK EXPO International 2026

EASYSEAL® 43mm

EasySeal(R) 43mm closures are designed for application on PET, HDPE and PP bottles.

CSI’s EasySeal 43mm closures are designed for application on PET, HDPE and PP bottles. These closures are ideally suited for cold-fill, hot-fill, and aseptic-fill non-carbonated beverage packaging. EasySeal 43mm plastic closures are manufactured using CSI’s reliable molding technology, ensuring superior performance and quality. High Performance Features and Benefits
  • Easy, consistent application
  • Easy to open and reseal
  • Secure seal for quality and freshness, available with an induction lining option (foil seal)
Designed to Drive Sales
  • Promotional capability
  • Under-the-cap printing
  • Wide range of available colors

Wing-Lok R 43mm

PlasTop 43mm closures are designed for application on PET and HDPE bottles.

CSI’s PlasTop 43mm closures are designed for application on PET and HDPE bottles. These closures are ideally suited for cold-fill, hot-fill, and aseptic-fill, multi-serve non-carbonated beverage packaging. PlasTop 43mm plastic closures are manufactured using CSI’s reliable molding technology, ensuring superior performance and quality. High Performance Features and Benefits
  • Easy, consistent application
  • Easy to open and reseal
  • Wing-Lok tamper band using a patented scoring process for a consistent, high level of tamper evidence
  • Secure seal for quality and freshness
  • Minimizes finish distortion from hot-fill process
Designed to Drive Sales
  • Promotional capability
  • Under-the-cap printing
  • Marketing expertise to help develop effective promotional programs
  • Wide range of available colors
  • Printing graphics capabilities for decorating closure top
  • Debossing option

Extra-Lok VS / VR 38mm

PlasTop 38mm closures are designed for application on PET and HDPE bottles.

CSI’s PlasTop 38mm closures are designed for application on PET and HDPE bottles. These closures are ideally suited for cold-fill, hot-fill, and aseptic-fill, multi-serve non-carbonated beverage packaging. PlasTop 38mm plastic closures are manufactured using CSI’s reliable molding technology, ensuring superior performance and quality. High Performance Features and Benefits
  • Easy, consistent application
  • Easy to open and reseal
  • Wing-Lok tamper band using a patented scoring process for a consistent, high level of tamper evidence
  • Secure seal for quality and freshness
  • Minimizes finish distortion from hot-fill process
Designed to Drive Sales
  • Promotional capability
  • Under-the-cap printing
  • Marketing expertise to help develop effective promotional programs
  • Wide range of available colors
  • Printing graphics capabilities for decorating closure top
  • Debossing option

Extra-Lok ODS / ODSL 38mm

PlasTop 38mm closures are designed for application on PET and HDPE bottles.

CSI’s PlasTop 38mm closures are designed for application on PET and HDPE bottles. These closures are ideally suited for cold-fill, hot-fill, and aseptic-fill, multi-serve non-carbonated beverage packaging. PlasTop 38mm plastic closures are manufactured using CSI’s reliable molding technology, ensuring superior performance and quality. High Performance Features and Benefits
  • Easy, consistent application
  • Easy to open and reseal
  • Wing-Lok tamper band using a patented scoring process for a consistent, high level of tamper evidence
  • Secure seal for quality and freshness
  • Minimizes finish distortion from hot-fill process
Designed to Drive Sales
  • Promotional capability
  • Under-the-cap printing
  • Marketing expertise to help develop effective promotional programs
  • Wide range of available colors
  • Printing graphics capabilities for decorating closure top
  • Debossing option

HF-Lok Aero 38mm

CSI’s HF-Lok Aero 38mm is a once-piece, light-weight, high-performance design that is ideal for hot-filled, aseptic, cold and ambient non-carbonated beverages.

Closure Systems International’s HF-Lok Aero 33mm and 38mm closures offer light-weight, one-piece closure solutions that are ideal for hot-filled non-carbonated beverages. These lightweight closures not only provide economic and environmental benefits, but they also provide advanced tamper evidence and smart venting for consumer safety and product security. In addition, CSI’s integrated closure and capping systems with expert technical services help optimize bottlers’ total cost of operations. Lightweight, High-Performance Design
  • 38mm, 1-piece / linerless, 2-start, HDPE lightweight closures
  • HF-Lok Aero 38mm securely seals 38mm PET bottle finishes with a .060” & .083″ e-wall thicknesses.
  • Consumer-friendly, consistent removal torques
  • Impact resistant, passing stringent extreme drop tests with no air suction
  • Debossing, top printing, UTC promo and color options for enhanced brand marketability
Consumer Safety and Product Security
  • Band break before seal release advanced tamper evidence for increased consumer safety and product integrity
  • Reverse taper seal design for maximum product protection
  • Folded tamper band design for efficient application

VentBand 48mm

CSI’s VentBand 48mm closures are designed for application on PET and HDPE bottles. These closures are ideally suited for cold-fill, hot-fill, and aseptic-fill, multi-serve non-carbonated beverage packaging.

VentBand 48mm plastic closures are manufactured using CSI’s reliable molding technology, ensuring superior performance and quality.

VentBand 43mm

CSI’s VentBand 43mm closures are designed for application on PET and HDPE bottles. These closures are ideally suited for cold-fill, hot-fill, and aseptic-fill, multi-serve non-carbonated beverage packaging.

VentBand 43mm plastic closures are manufactured using CSI’s reliable molding technology, ensuring superior performance and quality.