UPCOA

United States

Liquid Injection Molding (LIM) of Liquid Silicone Rubber used by G & F Medical is a rapid and economical process for low to high-volume applications that produces final parts with excellent precision and repeatability. Liquid silicone is a low viscosity (0.1mil cps to 2 mil cps) liquid at room temperature, the injection barrel is cooled, and the injection mold is heated. A two-component LSR mix-a catalyst containing platinum and cross linker-plus, if required, color pigments and additives, are dispensed into the Liquid Injection Molding (LIM) machine barrel after the mix is homogenized through a static mixer. The homogenized mix is then injected into a heated mold. The LSR mix is vulcanized (cured) in seconds. Benefits of Liquid Injection Molding (LIM) are: Closed process lowers the risk of contamination Quick cure resulting in a faster cycle compared to peroxide cured cycles Easy to color and flexibility with changes in pigment ratios Low maintenance and ease of change-over Common screwbarrel assembly for all LSR grades as no material shear is necessary

Whatever the situation, our technical group has probably seen it before. We can help you avoid pitfalls, overcome obstacles and find optimal solutions to design challenges, thereby improving the speed, and reducing the cost of development. SolidWorks™ as 3D CAD application for product design support and mold design review Quick turnaround of quotes and prototype samples Use of G & F Medical owned conventional or cold runner mold base to cut lead time and costs Molded prototypes provide the actual look and feel of the finished product. Physical properties and appearance will closely match that of a production part. Tool design change flexibility Stock many LSR grades from various suppliers to expedite prototype samples Mold FlowSimulation can be done prior to cutting the mold to optimize gate location and port design. Tooling capacity through sister company as well as local and international vendors (European).