Molding Capabilities

GW Silicones Molding Capabilities Include:

Liquid Silicone Rubber Injection Molding (LSR):  Specializing in molding USP Class VI, restricted or unrestricted silicone materials specified for use in FDA Class I, II and III devices.

Thermoplastics & Liquid Silicone Rubber Two-Shot Molding: With this process, silicone components and rigid thermoplastic substrates are molded together in one press to provide improved part design and performance and unit cost savings generated through the ability to design without the need for assembly. Multi Material or Two-Shot Silicone and Thermoplastic molding offers the following advantages:

•  Cost effective assemblies due to the elimination of adhesives and post assembly operations

• Increased part quality based on reduced part handling and less possibility of contamination

• Reduced validation cost by simplifying the process flow of the molded component

• Increased design flexibility allowing engineers to incorporate unique material combinations into assemblies

• Typical thermoplastic substrate materials include:  PEEK (unfilled), Polycarbonates, Nylons and Polyesters (unfilled and glassed filled).

Insert Molding & Over Molding:  Consistent parts that are manufactured utilizing insert molding and over molding techniques are a specialty for GW Silicones.  For applications where a Two-Shot method is not practical based on part volumes or part geometry, traditional over molding techniques can be used to achieve the same result. 

With our experience in both plastic and silicone injection molding, over mold methods are very straight forward and we can guarantee a high level of quality as well as efficient through put utilizing automation for insert feeding and flashless molding techniques.

Liquid Silicone Micro Molding – GW Silicones utilizes electric silicone molding machines with the capability of molding very small shot sizes consistently. Micro Molding of silicone is accomplished by using specific machine and LSR pump technology developed for the silicone micro molding industry. This guarantees the repeatability required in micro molding applications. By utilizing micro mold technology we can achieve very high precision molded detail and a shot-to-shot repeatability.

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