Plastic Subpage

Plastic Packaging & Closures

From pioneering the development of living hinges over 50 years ago, J.L. Clark now produces a wide variety of patented plastic containers and closures for a multitude of applications and markets. Our product development capabilities include 3D CAD/CAM, rapid prototyping and prototype mold construction. 

We are able to assist from design to production in our state-of-the-art plastic injection molding facility. Our post-molding capabilities include label application, in-line high speed video inspection, ink jet printing, in-line/off-line ultrasonic welding, multi-level assembly, hot melt glue application/assembly, and induction foil seal insertion.

Frost Veaside Mccormickpoppinglids Breathsavers V2

Production Process Capabilities

  • 110 to 600 Ton Injection Molding Presses
  • Complete Tool Room
  • SQF Level 2 Registered FDA GMP Climate Controlled Facility
  • Extensive Quality Lab for Inspection and Testing
  • Railroad Resin Delivery and Silo Storage, with Direct Material Delivery to Presses
  • Wide Range of Mold Sizes and Cavitation including Stack Molds & Valve-gated Hot Runner Molds 
  • Multi Component Raw Material Blending at Molding Presses
  • Automated Packing Systems
  • Wide Range of Post-molding Processing Capabilities