Durometer of Rubber Hardness

In the rubber business, one of the most common terms you will encounter is durometer. Durometer is both a measure of hardness of the material and the instrument used to measure it. A durometer can be used to measure the hardness of not only solid rubber but also cellular rubber (e.g. foams, sponges), plastics, and […]

Hot VS. Cold Runner Molding Systems

With the increasing cost of steel and raw materials, supply chain professionals are often looking for options to reduce part prices, cycle times, and material waste. Cold runner systems may be a cost saving solution in contrast to typical hot runner systems for the right application. Difference Between Cold Runner & Hot Runner Hot runner […]

Rubber Product Design Guidelines

Introduction Rubber molding processes, such as extrusions, compression molding, or injection molding, take liquid raw rubber into a mold where the rubber is then cured into the mold shape by heat and pressure. As such, the mold cavity is cut to represent the desired geometry of the molded rubber product. Products such as o-rings, seals, […]

Tolerance Factors for Molded Rubber Products

What are the factors that affect the tolerances of molded rubber products? Many factors in the manufacturing process can affect the tolerances of the molded rubber product. In general, the consistency of dimensions will be contingent on the rubber material, mold tool, product design, and conditions of measurement. Shrinkage All rubber go through some degree […]

Ultra-High MW EPDM as a Replacement for NR

Natural Rubber (NR) is usually the material of choice in vibration and noise damping applications due to their excellence in strength and resilience. However, technological strides have been leading to ever smaller equipment and compartments, therefore decreasing the available airflow for components. This has led to rising temperatures under the hood, exposing the limited stability […]

Rubber Engineering: Resilience & Hysteresis

Definitions Resilience is the percent of energy required for a deformed pieces of rubber to rebound back to its original shape after a deformation. Hysteresis is the percent of energy loss per each deformation. Hysteresis results from friction happening inside the rubber which creates heat build-up. The heat build-up in the rubber is measured as […]

Why Custom Molding Works Well in Medical Devices

Custom rubber molding is the best choice for medical devices for a number of reasons. Medical device developers can define the most appropriate flexibility, fit, appearance, chemical resistance, and other features for their product. Custom rubber molding for medical devices would be able to give the highest quality product that can perform better, be more […]

Rubber Grommets for Hoses, Wiring, and Cabling

Hoses, tubes, and pipes can be vulnerable to damage by repeated flexing or friction, exposure to the environment, and contamination by foreign materials. Damage to hoses, tubes, and pipes can certainly lead to safety issues as well. Aside from abrasions, grommets are also used in applications where hoses, wiring, and cables need insulation, vibration protection, […]

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