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Rubber Compounding and Mixing for Performance


Start with the basics of formulating, the key processability characteristics, and the most common factory problems and causes, then go further in-depth in this three-day, intensive overview of rubber compounding and mixing.



o History
o Basics of Formulating
o Key Processability Characteristics
o Common Factory Problems and Possible
o Causes

Rubber Testing

o Five Categories of Processability Tests
o Miniature Internal Mixers and Extruders
o Rotational Viscometers
o Mooney Viscosity
o Capillary Rheometers
o Oscillating Rheometers
o Oscillating Disc Rheometer (ODR)
o Rotorless Curemeter
o Assignable Causes of Variation
o Rubber Process Analyzer
o ASTM Standard Test Conditions
o Rheological Profiles of Raw Rubber
o Rheology and State of Mix
o Stress Relaxation Tests

General Purpose Elastomers

o Different Polymer Backbones
o Molecular Weight Distribution Differences
o Crystallinity and Morphology
o Crystallinity on Stretching
o Natural Rubber; SBR; Polybutadiene; EPDM
o EPDM and Sponge Formulations

Unit 4  Specialty Elastomers

o Nitrile Rubber, HNBR , NBR / PVC
o Butyl Rubber, Halobutyl Rubber
o Polychloroprene, Epichlorohydrin
o Fluoroelastomer, Silicone Rubber, Curing Silicone Rubber with Peroxide
o Advantages of Platinum Cures
o Polyurethane Rubber


o Tangential vs. Intermeshing
o Rotor Design; 2, 4, and 6 Wing Rotors, Rotor Speed
o Friction Ratios
o Dispersive mixing vs. Distributive Mixing
o Importance of Order of Addition of Ingredients
o Examples of Different Orders of Addition, Advantages and Disadvantages
o One Pass vs. Two Pass vs. Three Pass
o Dump Mill, Cooling Batches, Phase Mixing
o Carbon Black Distribution in a Rubber Blend

Filler and Oil Systems

o Plasticizer Performance
o Carbon Black Oil Balance and Effects on Rubber Properties
o Silica, Clay, Calcium Carbonate,Titanium Dioxide

Rubber Chemicals

o Rubber Cure Systems
o Activators (Zinc Oxide and Stearic Acid)
o Sulfur Vulcanization
o Blowing Agents
o Activator Selection

Compounding for Dynamic Performance Properties

o The "Three Ps"
o Overview of Product Performance
o Rubber Compound Economics
o The Importance of Elastomer Selection to Meet Performance Needs
o The Selection of an Optimal Filler / Oil System
o Selection of an Optimal Cure Package
o Lab DOEs and Field Trials

Introduction to Factory Problems

Statistics and Methodologies for Solving Factory Problems

o Basic Statistical Methods to identify special causes of variation
o Corrective Actions in the Short Term
o Develop a strategy for establishing long term solutions to chronic problems
o Six Sigma Techniques for Solving Chronic Rubber Factory Problems

Nature and Techniques for Solving Problems in Rubber Compounding and Processing

o Changing one-variable-at-a-time technique for improvement of a rubber compound
o Applying a Design of Experiment
o Interactions

Case Studies of Rubber Compounding and Processing Problems

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Who Should Attend

Both entry level as well as experienced rubber technologists, rubber chemists, process engineers, laboratory managers, supervisors, technicians, shop foremen, quality assurance managers and engineers, technical sales personnel, rubber producers and users.

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Benefits and Learning Outcomes

  • Know the five categories of rubber processability tests
  • Understand the differences between general purpose and specialty elastomers, and how they affect compounding and mixing
  • Review methodologies for solving factory problems
  • Gain an intensive overview of rubber compounding and mixing

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This program can be applied toward the:

Attendees receive two textbooks (included in the course fee) by course instructor and author John Dick.
Wed.-Fri., Sept. 16-18
Location: UWM School of Continuing Education (Click link for directions)
    John S. Dick
    Peter C. Surette, Sr.
$1190: Register by Thu., July 16
$1290: Register on or after Fri., July 17 Discount Available
CEUs: 1.8/PDHs: 18
Program No. 4830-7929
Register Now
For more information, contact:
Murali Vedula,, 414-227-3121


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