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Plastic Closures - Silgan U

Plastic closures have become a staple for all types of beverages, from your coffee creamer to your sports drink and beyond! With the wide variety of plastic closure types and a range of packaging processes, understanding the basics and the specifics is an important part of becoming a closures expert. The following lessons will help you uncap a wealth of knowledge that will put you at the top of the class!

Key Questions to Answer:

  • What makes up the anatomy of a plastic closure?
  • What are the different types of seals, liners, and tamper bands?
  • What raw materials make up a plastic closure?
  • What are the different manufacturing processes and testing procedures?
Checklist 2

The Lessons:

  • 101 Closure Basics
  • 102 Closure Materials and Innovation
  • 103 Testing & Manufacturing

Download our Closure Terms Glossary here and get familiar with important vocabulary and their definitions.

Each lesson features educational videos that break down the topics, followed by short quizzes and exercises to test your knowledge. If this is your first time taking this course, we suggest starting with Plastic 101: Closure Basics. See you at graduation!

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