Overmolding and its Effect on Quality


06 May


More producers are resolving to overmolding as they figure out how it increases the value of their product s.   Today lowering the cost of production is not common, but here it improves functionality, aesthetics and performance.  Overmolding is a process that one-shot or two-shot that patches a flimsy layer of thermoplastic elastomer to the products’ substrate.   This layer that is external creates the tender touch grip which is common for a broad products range like power tools, toothbrushes and others.   Overmolding likewise decreases vibration and shock, lowers sound, gives electrical protection, assists UV resistance or chemical resistance, and can be a hindrance to dampen and oxygen.



Subsequently, more buyers are requesting this touch to the items they buy hence the expansion of overmolding applications.   This technology availability further offers engineers of products more choices to form functional and attractive products and continuing to stay on the markets leading design edge.  For successful production run, not all injection-molders can overmold but they need specialized training, state of the art equipment and proper control of several variables.   Quality can be affected if there is even a small change meaning that professional operators are compulsory.  A lot of this know-how is connected to the  products being utilized therefore a deep knowledge of chemical behavior and material science is needed.  New paint mixes are always being produced  to give absolute properties, like resistance on heat, chemical, UV and hardness, UL standards and clarity. Make sure to view here for more details!


A key guide in overmolding is deciding the finest substrate blend for ideal holding, and the design of proper tools and mold.   It is important to keep the melt temperature because it affecting the  flows and bonding.   If you want strong  then you must use gloves so that it does not fail out of contaminations of dirt, skin oil, dust and excessive moisture combinations.   Know what is overmolding here!


In tooling, vents should be placed well to allow air release from the mold cavity when overmolding. It is unlikely if advanced technology enhances the viability of a product and achieves satisfaction from customers and still lowers the cost of production.   The costs are lowered when overmolding can lessen the steps of production.   The size of the gate is decided by shear amount, material type, flow rate and viscosity may be necessary.  If the steps are followed the one injection molding process, the overmolding process helps throughput, waste reduction and production cost is lowered.  During the shutoff there should be a proper design for the involved materials to reduce the delamination risk or curling. Learn more details about the importance of molding; go to https://en.wikipedia.org/wiki/Molding_(process).

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