Engineering Innovation for Everyday Functionality

At SR Packaging, pushing the boundaries of standard operating procedures is how we operate. By overcoming complex technical engineering challenges, the latest evolution of our Kilner jar series delivers advanced features designed to elevate the consumer experience and exceed modern brand expectations.  

Unlike traditional lock-up closures that require forceful operation and consume excess external shelf space, this innovative release provides a streamlined, premium solution. The Uni-seal Screw-top PET Kilner Jar ensures effortless opening and closing while maximizing leak-proof protection and structural durability.  

The Integrated "Uni-Seal" Advantage

Improving upon our 2014 second-generation design, the Uni-seal Screw-top PET Kilner Jar eliminates the need for a separate, often cumbersome LDPE inner plug. Instead, the core engineering integrates the LDPE sealing element directly into the lid. This unified approach provides a far superior, user-friendly barrier against air and moisture to keep contained products fresh and uncontaminated.  

Premium Materials and Aesthetic Flexibility

Retaining the convenient threaded mechanism of its predecessor, this jar combines practical functionality with simple, chic aesthetics. It is constructed with durable stainless steel hardware, highly stable PET with glass-like transparency, and a fully customizable PP lid that can be color-matched to your exact brand specifications.  

The Uni-seal Screw-top PET Kilner Jar supports a wide range of industry-standard decoration techniques, including silk screen printing, hot stamping, and custom labeling.  

Versatile Application

Engineered for exceptional endurance, these jars safely accommodate both hot- and cold-filled products. They are the perfect premium packaging vessel for a diverse range of applications, seamlessly transitioning from beauty and personal care formulations to kitchen and pantry staples.  

Currently, there are three series of Uni-seal Screw-top PET Kilner Jars available for option:

• KJ-C-B

• KJ-DS-B

• KJ-H-B