Today’s consumers demand higher quality, more durable, and longer-lasting goods. The Liquid Silicone Rubber (LSR) manufacturing process can be the key to delivering a better product at a lower price for various markets.
SIMTEC has more than 10 years of experience producing custom molded LSR consumer goods and related parts. If you manufacture rubber cookware such as silicone baking molds, or anything with rubber gaskets, buttons, or other components, we can help.
Benefits of LSR
LSR has emerged as the material of choice for affordable, durable silicone keypads, rubber rollers and other LSR consumer goods. LSR is hypoallergenic, mold and bacteria-resistant, tasteless and odorless, UV-resistant, and more. It maintains its consistency in a wide range of temperatures, making it suitable for use as an electrical insulator or an all-weather sealant.
With its unique characteristics, Liquid Silicone Rubber (LSR) provides benefits for a countless variety of applications. As new products arise, the exceptional properties of this material are progressively benefiting more industries and applications.
For specific information regarding material and application alternatives, we recommend visiting our technical information page or contacting us directly.
Overmolded LSR Shower Heads
Overmolded shower heads are increasingly common. The ability to overmold LSR onto a thermoplastic in a one-step process without the need for primers or adhesives allows for the creation of unique colorful pieces with optimal spray characteristics. With the proper design and LSR material, nozzles with special features, such as the ability to vibrate at specific frequencies in order to prevent mineral and calcium buildup, are made possible.
LSR is a material that can undergo flex and elongation with no permanent deformation. This material has excellent flex fatigue resistance, thus it will stretch or twist under load, but when the load is released it will return to its initial position. Since the material is crosslinked, it will not suffer creep and its high resilience extends over long periods of time. LSR’s characteristics make it the perfect material for slit-valves, allowing them to be designed so that they open under pressure and fully close when the pressure is released.
Liquid Silicone Rubber makes excellent contact when placed against many materials including paper. LSR has improved printer performance greatly; using overmolded silicone rubber rollers to feed and transport paper sheets improves both functionality and accuracy.
As with medical components, high purity, hypoallergenic materials are required for skin-contact applications or for any component that may be exposed to a substance that will later be applied to the skin. Liquid Silicone Rubbers are ideal for caps, seals, valves, wipers, brushes, applicators, or other similar components.
Bottle dispensers designed with Liquid Silicone Rubber seals and valves optimize functionality, provide better flow control and prevent material from drying-out on the exit nozzle.
Food grade LSR
provides flexible, non-stick surfaces for silicone baking molds and other rubber cookware. LSR’s ability to adhere to various plastics and metals makes it possible for parts to be designed to combine the rigidity and structural support of a plastic or metal with the beneficial properties of LSR, all in one automated process. Since LSR is a crosslinked material, it can withstand extreme temperatures with no heat aging. This allows it to maintain its mechanical properties over time. Due to the high purity of Liquid Silicone Rubber, there is no threat of this material releasing hazardous chemicals, monomers, plasticizers or promoters at any temperature range, as there are no such chemicals in LSR.
Baby Products and Toys
Liquid Silicone Rubbers are used in medical devices for their high purity and stable hypoallergenic nature. Similarly, high tear LSRs are ideal for silicone baby products, bottle parts and components that might be bitten or sucked on. Most thermoplastic materials used to produce baby products gain their flex characteristics from hazardous plasticizers, and many times these materials contain substances that leach out of the material over time and may be very harmful. LSR is not only stable and pure, but due to its inorganic backbone, it is not highly susceptible to bacteria, poisoning or mold growth. Some examples of applications for which LSR is a good fit include bottle nipples, teething rings, toys and pacifiers.
Multi-Component Housings and Silicone Vibration Dampers
LSR 2-Shot injection molding and LSR overmolding technology allow for the production of air tight and/or water tight housings. Components that vibrate or require high temperatures such as shavers, blowers, trimmers, or electric motors can benefit greatly from multi-component LSR housings and dampers that incorporate the sealing properties of LSR and a thermoplastic or a metal without the need for additional assembly steps or challenges.
High Transparency Buttons
Liquid Silicone Rubber is naturally translucent and thus allows light to flow through its surface. LSR is the ideal material for silicone rubber buttons not only for its high transparency, but also for its durability, resilience, and its ability to outlast the life of the final component.
Quality Processes for Superior Products
SIMTEC’s South Florida manufacturing facility has achieved ISO 9001:2008, ISO 13485:2003, as well as ISO/TS 16949:2002 certifications. A commitment to repeatable processes is ingrained at every level of our business, which is why we have one of the lowest defect rates in the industry. We quickly turn around silicone parts orders and we can meet special requirements for dust and other airborne particle control in our Class VIII (100,000) and Class VII (10,000) clean rooms.
Whether you are manufacturing silicone baking molds, rubber buttons or any other product designed for the consumer market, we will make sure your product meets the highest possible standards for quality and durability. To discuss your injection molding needs and receive a free quote for an upcoming project, please contact SIMTEC today.