What is a Plastic Process Technician?

A Plastic Process Technicians primary job is to set up, monitor and troubleshoot plastic injection-molding machines. This requires specialized knowledge of materials, specific tools, and equipment. Troubleshooting tasks might include dealing with inconsistent material, faulty equipment, human error, and preventing defects from occurring.

Plastic Process Technicians:

  • Ensure injection molding machines, auxiliary equipment, and connected automated systems are set to regulation parameters, meet quality standards and all production goals.
  • Set up and start up molding machines, read blueprints, and check products with calipers, optical comparators, and other testing methods and devices.
  • Provide feedback on mold design and assist tool and die makers to dial in each mold for optimal cycle time and quality.
  • Monitor and troubleshoot processing problems, perform preventive maintenance tasks, and document process changes.
  • Are able to apply all aspects of scientific molding.
  • Understand the importance of reducing and re-using material scrap to protect our environment and save costs.

How do I Become a Plastic Process Technician?

Manufacturing companies in Washington State are looking for eligible women and men to hire and place in an industrial Maintenance technician apprenticeship. Those who meet the minimum qualifications for apprenticeship and possess technical or mechanical skills (e.g., jobs, classes or hobbies) are in high demand by companies who participate in the Aerospace Joint Apprenticeship Committee (AJAC) apprenticeship program.

What are the Benefits of Becoming a Plastic Process Technician?

A long-term career with a good salary, job advancement opportunities and the chance to work with your hands using cutting-edge technology in the third largest manufacturing industry in the United States.

Become a Plastic Process Technician through AJAC’s apprenticeship program. Get paid while learning on the job and enhance your knowledge by attending classes only one night a week! To find out how you can become an apprentice and launch your career in aerospace or manufacturing, visit AJAC’s Get Started Section.

Related: Plastic Process Technician Program Outline | Standards of Apprenticeship

On-the-Job Training Competencies:

OJT Competency

Approximate OJT Hours

Mold Setting


Material Handling


Molding Machine Maintenance


Tool Maintenance






Assembly Equipment Operation


Process Technology (Molding)


Process Improvement Techniques




Plastic Process Technician Apprentices Take the Following Classes:

  • Plastics Material Science – Explore material science and processing principles for polymer materials
  • Engineering Drawings – Reading and interpreting engineering drawings and schematics, and basic drafting
  • Machine Automation Theory – Computer numerical control (CNC) and programmable logic controllers (PLCs)
  • Math for Industrial Maintenance – Practical application of industrial maintenance mathematics
  • Maintenance Machining – Techniques for operating lathes, milling machines, and machine tools
  • Mechanical, Fluid Power and Electrical Systems – Three individual classes based on theories and principles
  • GD&T and Precision Fits – Geometric dimensioning, theory and application of standard tolerances
  • Inspection – Measuring and inspection of size, position, form, surface finish and orientation
  • Mold Making and Design – Exploration of the materials, processes, and mold design principles for injection molding,compression molding, transfer molding, and die casting
  • Manufacturing Management – Essential concepts of modern industry, Just-in-Time and Lean Manufacturing