*** Please note, each row and course# listed below is a separate, complete course. ***

Elastomer Molding Technology

Course# Date Time Location
024-1276 11/06/2024 - 11/08/2024 9:30 AM - 5:00 PM Microsoft Teams
024-1277 03/26/2025 - 03/28/2025 9:30 AM - 5:00 PM Microsoft Teams
024-1278 11/05/2025 - 11/07/2025 9:30 AM - 5:00 PM Microsoft Teams
Cost: $1,200.00 USD
Online Registration
CEU's: 1.6
Instructor: Mr. Terry Chapin

Course Overview

Days 1 & 2: 9:30 AM – 12:30 PM and 2:00 PM - 5:00 PM
Day 3: 9:30 AM – 12:30 PM

This seminar describes and compares important molding methods (compression, transfer, and injection) for thermosetting elastomers (TSEs) with methods (injection and blow) for thermoplastic elastomers (TPEs). There will be a limited description of mold design for TSEs.

This introductory course will benefit people involved in molding of elastomers, especially those transitioning from molding of one type of elastomer to another. Attendees with primarily a materials-related background will improve their understanding of molding processes and the effect of mold design on molded products. Process and design managers will better understand the effect and importance of these factors on the overall molding operation.

In addition, the course considers elastomer selection, varied deflashing techniques, elastomer processing factors, elastomer part tolerancing, molded article dimensional variations and design for manufacturability (DFM).  DFM difficulties and examples are described.  Also included is a discussion of the "Beaumont Melt Flipper", correcting mold problems, importance of mold vents and gates, vacuum molding, as well as trouble shooting the molding process.

Attendees will improve their understanding of molding behavior of TSEs and thus improve and better control their elastomer molding operations. The interdisciplinary approach used will assist them in understanding molding as an integrated operation consisting of materials, processes and design. Participants are encouraged to discuss current molding problems for class input.

Information from the books, Elastomer Molding Technology and Rubber Molding Principles, will be used in conjunction with the seminar.

Online Course Requirements

We want you to have a great experience participating in our remote (online) courses, and for that, you’ll need the right equipment and internet connection.

Minimum needs are:

  • A broadband internet connection that has at least a 2 Mbps upload and download speed.
  • A computer (PC or Mac) that can support the latest web browser versions.
  • At least 4 GB of RAM and adequate hard drive space.
  • A microphone and a speaker.
  • International Students: For virtual (online) courses, an additional fee will be assessed to cover the cost of shipping the professional binder (presentation slides), to your address. The cost of international shipping can be significant.

For more information, visit our Online Course Requirements webpage.

Instructor Biography:

TC Newer PictTerry Chapin received his B.S. from Youngstown State University in Youngstown, Ohio in June 1980. He majored in mechanical engineering and minored in math and civil engineering.

After 33 years, he retired from Delphi as a senior materials engineer, working primarily in the area of silicones, elastomer parts and foam products development. He was previously senior rubber technical and cost leader at Delphi, after working as a tool engineer for rubber and plastic molds at the Delphi Packard Division for more than 20 years.  He is now working for himself as a consultant and instructor.  His new company is Elastomeister, and his position is Rubber Technologist.

Terry has been involved in the rubber industry for more than 30 years, working with rubber companies all over the world. He has held previous engineering positions at Paxson Machine Company, EMCO Wheaton and Commercial Shearing. He holds two U.S. patents. Terry has been an active technical speaker for university level continuing education instruction, rubber conferences and technical in-plant venues for more than 25 years.

APTC Elastomer Molding Technology Course

  • Introduction
  • Rubber Material Overview
  • Rubber Material Flow
  • Rubber ASTM Material Designations
  • Rubber Molding Methods
  • Other Types of Molding
  • Rubber Material Process Overview
  • Overview of Presses and Molding Equipment
  • Deflashing Techniques
  • Processing of Rubber
  • Design for Manufacturability
  • Tolerances for Rubber Parts
  • Mold Debug
    • Micro-venting
    • Vacuum Molding
    • Beaumont Melt Flipper
  • Troubleshooting the Rubber Molding Process


If you have any questions or need more information about this course, please contact:

Penelope Pinkston


Online Registration


Registration Form

Registration information: Registration shall remain open until posted as closed on the course listing on this site.

Registrations must be guaranteed by check, a purchase order number or a credit card, otherwise the registration will not be processed. Checks should be made payable to "The Akron Polymer Technology Services Training Center" and must include a copy of your completed registration form. Course fees are due before attending.

All registrations—whether by online, phone, fax or mail—will be confirmed and considered binding and subject to all cancellation policies. If you do not receive a confirmation prior to the class, please call The Akron Polymer Technology Services Training Center to verify your registration.

Course fee includes classroom instruction, instructional materials, parking permits, continental breakfast, lunch, beverages and refreshment breaks. Travel and hotel accommodations are not included.


Visit our registration webpage to view our cancellation/withdrawal policy.