knobservations banner

The Story Behind Our Soft Touch Knobs and Handles

Posted by Marketing Manager at Davies Molding

Jan 27, 2016 9:30:00 AM

Davies Molding has been molding knobs, handles, cases and custom components for over 80 years.  One of our molding capabilities is two-shot injection molding.  We often refer to the two-shot parts as "soft touch" since this process involves combining hard plastics with soft materials.


Soft touch parts are manufactured in our 110 ton, two-shot press using nylon and thermoplastic elastomer (TPE) materials.  These materials provide the soft touch knobs and handles with strength and durability, while having a soft, comfortable grip.

Thermoplastic elastomers are a diverse class of polymers that look, feel and behave like rubber.  They can be processed and recycled like thermoplastic materials.

The first US based production of TPE was in 1959 for B.F. Goodrich.  In the 1970's, TPE was being used for wire and cable insulation and jacketing.  Then there was the focus of using TPE as a rubber replacement, in the 1980's, for automotive and medical parts.  Today, they are used in many different industries due to the advantages they provide.

There are major benefits for using TPE in molding.  Part consolidation, design flexibility, improved part tolerances, improved part appearance and consistent performance are a few of the benefits.  It's a great material to use for multi-material components since it reduces assembly labor and the need to adhere parts together.  The manufacturing steps are reduced by being able to mold using the two-shot process.

The two-shot injection molding process we do at Davies Molding, requires a special two-shot press.  This press has two separate injection units that inject a different material into each of the mold cavities.  The first material is injected, the mold closes and then the second material is injected into the other cavity.  After the part has cooled, the mold opens and the completed part is removed.


If you would like to learn more about our two-shot injection molding capabilities or to request a quote, please contact our knowledgeable team at or 800-554-9208.


Topics: Industrial Handles


Interested in custom molding options?

Davies Molding 90 Year Logo

For 90 years Davies’ has been molding custom plastic components for all industries, including lighting, lawn & garden, industrial machinery, medical, oil & gas, and many more. Our compression, injection, and transfer molding capabilities provide tremendous flexibility in part design and production.

Custom Quote Request


Recent Posts

Subscribe to Email Updates

Follow Us