Silicone Rubber Mold, with its low compression set, fast cure cycles, great stability and ability to resist extreme temperatures of heat and cold makes it ideally suitable for the production of parts where high quality is a must. Unlike most thermoplastic elastomers (TPRs and TPEs), LSR remains flexible and elastic down to -70o F and retains its properties up to 450o F. In addition to these qualities, the wide range of hardness and colors, silicone elastomers have become the material of choice for an ever increasing amount of applications.
Do not have your liquid silicone rubber mold built by a plastic mold maker. Liquid silicone rubber is a totally different mindset. SPARK Mold and Engineering is one of the few companies in the United States offering waste-free liquid silicone rubber molds for over 28 years. Waste-free molds coupled with various types of automation devices, such as SPARK Mold’s Cold Runner System, provide you with ‘lights-out’ molding. SPARK Mold’s tight tolerance, flashless liquid silicone molds offer a high level of productivity and value throughout the life of the mold. Depending on the complexity of the tool, we present you with a wide range of automation capabilities. SPARK Mold’s in-depth knowledge of building tight tolerance, flashless molds for LSR has led them to become industry specialists in processing this material. Our highly skilled staff are experts in complex 3D geometry. This provides you with the advantage of knowing we will provide you with high quality molds for masks or other complicated projects. Although we specialize in liquid silicone rubber molds for medical applications, SPARK Mold serves many industries, including OEMs and job shop molders in the primary markets of surgical, dental, aviation, fluid transfer and consumer products.
Have an over mold project? SPARK Mold is proficient in over molding silicone on silicone, silicone on plastic, silicone on glass, and silicone onto metals. With the benefit of knowing what is critical in each mold, SPARK Mold builds quality liquid silicone molds to produce the finest finished product.
Have a micro part with intricate geometry? SPARK Mold has extensive experience building micro molds, such as a punctum plug which fits in the tear duct of an eye, .060 long and .040 in diameter with a .008 core pin inside.
All of our tools are built to SPI standards using only the finest steels and components available.