Silicone Rubber...It's what we do at Moxness
Moxness - Precision Silicone Rubber Products.
At Moxness, we do all types of silicone molding, including:
• Injection Molding
• Liquid Injection Molding (LIM) of Liquid Silicone Rubber
• Transfer Molding
• Compression Molding
• Liquid Silicone Parts (LSR) and LSR 2-Shot (LSR/Thermoplastics – available upon request)
• High Consistency Rubber (HCR)
• Fluorosilicone - High Consistency Rubber HCR and F-LSR
• Specialty Rubber Materials: Fluoroelastomers (FKM), Hydrogenated Nitrile Butadiene Rubber (HNBR), Nitrile rubber (NBR), Polychloroprene Rubber (CR), Ethylene Propylene Diene Monomer (EPDM), and more.
• Bonding to Substrates - Metal, Plastics and more.
• Self-bonding LSR
• Compression, Transfer and Injection Molding
• Light assembly and special packaging
Moxness’ state-of-the-art testing lab is on-site and ensures our products are up to your high standards. The Moxness in-house tool shop repairs and maintains injection molds and dies, ensuring our products are quickly rotated back into production and kept at a low cost to our customers.
Liquid Injection Molding (LIM)
Moxness has expanded options for your projects- Rubber Industries Liquid Injection Molding capabilities include Liquid Silicone Rubber (LSR) process technology for both colored and clear silicone parts.
LSR products at Moxness are composed of two-component Liquid Silicone Rubbers used to produce elastic parts by injection molding. This specialty rubber has many admirers in the appliance, automotive, medical, electronics, and textile industries. LSR has earned a stellar reputation due to its high thermal stability, rubber-like properties, and resistance to both aging and wear and tear.
LSR at Moxness has a wide temperature range (-94 degrees F to +400 degrees F). It’s resistant to the damaging effects of sunlight and ozone, with low compression set. Valves, seals, diffusers, insulators, gaskets, and bellows are just a few of the components that can be created with LSR.
High Consistency Rubber
At Moxness, we take pride in our expertise of bonding rubber to metal. This is an intricate process that adheres rubber to high temperature-resistant materials and Insert molding is the key to encapsulating the bonded rubber to innumerable metal parts.
Insert Molding
Insert molding is a very cost-effective process and can create a bond that is even stronger than the rubber material. In fact, the bonds achieved with insert molding are even greater than parts held by glue. When product reinforcement is required, these molded parts are vital.
Moxness rubber bonding adhesives will not only bond rubber materials to each other and to metals, but will also adhere to Nitrile, Neoprene, SBR, EPDM, and Silicone.
Rubber to metal Overmolding
Metal items overmolded with rubber are used widely in many capacities, such as noise isolation, vibration control in a vehicle, and other various engineering applications. To join metal and rubber, both materials undertake the overmolding process, where several interdependent manufacturing progressions must take place before the finalized product is complete. This process utilizes advanced technology to create a high-quality product that will operate without fail.
Moxness is fully equipped to overmold to various sizes, shapes, and materials of substrates. Using both customer-supplied, as well as Moxness - procured substrates, there are many options to meet your needs. Typical insert materials include metals, plastics, rubbers, and even ceramics. Materials must be able to withstand a temperature of at least 260 degrees F with a preferred minimum of at least 300 degrees F to survive the process, but even with those limitations, through surface preps, cleanings, chemical primers, and even self-bonding materials, the possibilities are endless.
Moxness uses the vulcanizing process while simultaneously chemically attaching the rubber to materials such as aluminum, stainless steel, steel, brass, and plastic. The overmolding process main elements are the substrate, the rubber, and the agents. Any rubber compound can be used to form a overmold, but the polymer base and compound selection depends on specifications of the Moxness product and design.
The Rubber Overmolding Process
Our rubber overmolding process at Moxness starts with determining the overmolding layer, which is typically comprised of polymer solutions. This overmolding agent assists with forming a high modulus layer between the rubber and the surface of the substrate being used. At Moxness, the component design, modulus of the rubber, and the rubber type to be overmolded all play a part in determining the selection of the overmolding agents. Our experienced Moxness designers will carefully evaluate the project before deciding the most efficient substrate to use. Traditionally, steel has been used as a substrate, but with advances in technology at Moxness, we can now use polyamides and aluminum alloys as well.
To ensure quality, all materials must be thoroughly cleaned before Moxness will move forward with the project. Traces of grease, oil, and solid lubricant are removed completely from the surface of the metal. Moxness cleaning methods include degreasing, shot blasting, and wet blasting, which is tempered with phosphate conversion treatment. After this thorough cleaning, the overmolding agent is ready to be applied. The Moxness overmolding process starts with the application of a coat of grey primer, followed by a black topcoat. Once the elements are primed, the crucial rubber molding process can begin. Moxness quality control is indispensable with the rubber molding process, as it’s the base of success for the entire process. Combining the latest state-of-the-art equipment with the use of computer generated models ensures the rubber molding process will create a strong, no-fail product.
