Liquid Silicone Rubber Becomes Solution for Challenging Molded Valve

By: Angel Kinsey, Engineering Services

Dymotek is a custom manufacturing company that specializes in injection molding of thermoplastic and liquid silicone rubber materials (LSR).  We are often challenged by a customer that has an application where a flexible material is required.  Our experience in working with thermoplastic elastomers (TPE), rubbers (TPR), and urethanes (TPU) as well as liquid silicone rubber (LSR) makes us uniquely qualified to guide the customer to a material that best fits their application.

We were recently challenged with a drinking valve application that was attempted to be manufactured by another molder.  The valve needed to meet the design requirements for flexibility and fit and seal with a mating polypropylene cap. TPE was the material selected by the customer. Many grades were tried but the end results were not favorable. A molded part that met the design criteria and was free of defects was unachievable with a TPE.  The customer brought the application to Dymotek.

Dymotek’s team of engineers was able to quickly see that a TPE material was not the correct material for the application.  A new prototype mold was built for liquid silicone rubber and two grades supplied by Wacker were trialed to find the optimized molded part fit and seal. A Wacker Elastosil LR 3003/60 A/B, 60A durometer material, proved to have the ideal processing characteristics to produce a stress free molded product that consistently met the requirements for flexibility, fit and seal. The flow characteristics of the LSR material provided the solution to address the processing challenges for the molded valve.

The lesson learned here is the application must be carefully considered before selecting a material.  In general, if a TPE can be utilized it will be less expensive (both in resin and finished piece cost) and require a shorter mold manufacturing lead time.  LSR’s raw material tends to be a little more expensive and there are fewer mold manufacturers with the knowledge and capability of manufacturing molds.  Compression set, sensitivity to molded-in stress, variable wall thickness, and very thin wall sections are all strong indicators that an application may be best suited to LSR.

 

 

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It’s Time for Manufacturing Day!

By Alyssa Cannella- Business Development Admin.

In New England, the first chill in the air is met with excitement for pumpkin spice everything, the return of the NFL and the approaching holiday season.  For manufacturers though, the first sign of fall means it’s our time to show off!  It’s time for Manufacturing Day!

Manufacturing Day means we, as manufacturers, have another large scale opportunity to change some minds.  We get another chance to inspire someone, big or small, and adjust their misshapen views of American manufacturing. This is our chance to add another spark to a movement that, if tended to appropriately, could start a wild fire that eventually closes the skills gap in manufacturing. It is every manufacturers chance to help fuel the future of manufacturing in America!

Imagine if with each Manufacturing Day, each manufacturer across the country was able to inspire just one person. If your event gets one child to enroll in STEM courses, or convinces one parent that manufacturing can be a path to success and stability for their child, you are making a difference. Consider the effect it can have if that one person could then inspire their children, their students, their Girl Scout Troop or their family members. Just imagine the ripple effect that could cause!

While it is the younger generations that we bait our hooks for, eager for a bite, parents play a crucial role in the movements success. According to the National Institute of Standards and Technology (NIST), only 37% of parents encourage their children to enter into manufacturing and only 18% view it as a top career choice. (NIST Infographic). These numbers are surprising, considering data from the National Association of Manufacturers (NAM) which states that in 2013, the average manufacturing worker in the United States earned $77,506 annually, including pay and benefits. The average worker in all other industries earned $62,546. (NAM Manufacturing Facts).

Manufacturing often isn’t what it used to be. Technologically advanced facilities exist, where clean, automated and safe manufacturing happens every day.  Manufacturing holds an ocean full of opportunities for anyone willing to jump in. So this year, manufacturers-cast a broad net and see what you can pull in. And parents-be the hand that guides them, not the one that holds them back.

Manufacturing matters to everyone. It is the source of every product you use, every day. Why not be a part of it?

National Manufacturing Day takes place on Friday, October 2, 2015. Find an event near you!

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# 3105 in The 2015 Inc. 5000!

We are excited to announce that Dymotek has been recognized as one of the Inc. 5000 Fastest Growing Private Companies in America, coming in at #3105 overall!

Additionally, Dymotek ranked # 22 out of the 49 Connecticut companies to make the list and #72 out of the 177 manufacturers nationwide.

It is both an accomplishment and an honor to be a part of this list.  We hope to make the list in the years to come as we continue to fill our second space with both people and manufacturing.

Congratulations to all the companies who made the list in Connecticut, in manufacturing and nationwide!

You can see the entire list here!

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Plastics News Women in Plastics

Plastics News highlights women who made a career in Plastics and Shelley Fasano, our VP of Operations, is featured! Check it out here: Shelley Fasano-Women in Plastics

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Joe Courtney Congratulates Dymotek on Presidential ‘E’ Award

Congressman Joe Courtney : Press Releases : Courtney Congratulates Dymotek on Presidential ‘E’ Award.

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Dymotek Tooling Technician Chris LaBranche discusses how a local career fair and community college helped him find a career.

https://atecentral.net/ate20/29764/career-day-surprisingly–happily-leads-to-manufacturing-career

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Profitability Returning to Plastics- Good News!

According to a survey conducted for MAPP, the plastics industry is as successful as it was in the late 90s.  Read the article below

Plastics News- Profitability Returning to Plastics

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