Silicone Technical Tip

Introduction There are numerous methods for silicone parts production, liquid silicone rubber (LSR) and room temperature vulcanization (RTV) silicone rubber are two main types of silicone rubber for injection molding. Injection molding is a highly automated manufacturing process for complex silicone parts with medium to high production. However, this process will be more complex due to additional step with specific material grades. Room Temperature Vulcanization (RTV) Silicone Rubber RTV Silicone Rubber Types RTV silicone rubber has a wide range of…

Liquid silicone rubber fillers are normally applied to enhance LSR mechanical properties, in order to improve certain properties for application with requirements. LSR is the most important synthetic elastomer, it is easy to process with excellent properties. There is a significant advantage of LSR materials over conventional elastomer materials, it doesn’t require high complex compounds to achieve optimal properties for final products. Common Silicone Rubber Fillers Although silicone rubber filler is applied originally to decrease conventional rubber cost, its secondary effect is improving…

Introduction There are several liquid silicone molding key tips in manufacturing process, in order to guarantee its perfect performance for projects with high volume, efficiency and tolerance. Determining the ideal liquid silicone rubber material and fabrication process is the most crucial step in silicone parts production. In addition, we also need to consider quantities, leading time, budgets, design features, future design changes, market success and other numerous variables. Liquid silicone rubber is becoming the preferred materials for increasing application over traditional…

Introduction Mold design for liquid silicone rubber molding is very challenging, it is the most critical step in silicone parts production. We need to understand the basic information before start a LSR mold design. In most case, LSR tooling requires more precision and expertise than molds for thermoplastics. In reason of liquid silicone rubber (LSR) is processed differently from thermoplastics, it is difficult to translate certain strategies of tooling to LSR, even the most experienced thermoplastic tooling manufacturer. Flash Prevention…

LSR Materials Property LSR is a thermoset material, it has unique design characteristics different from thermoplastic injection molding. Therefore, LSR design considerations are less strict. Unlike thermoplastics are softening once heated, thermosets like LSR are cured in high heat temperature with various forms. LSR can withstand high temperature easily, while thermoplastics melt. So it is most suitable for high-heat automotive and industrial applications, or medical products with high temperature sterilization. Liquid silicone rubber also can maintain its flexibility in low temperature…

Our engineering team conclude the critical liquid silicone rubber (LSR) molding design guidelines. In order to improve silicone parts mold-ability, enhance cosmetic appearance, and save overall production time and cost. Liquid Silicone Rubber Molding is a cost-effect silicone parts manufacturing technology, it is applied widely in various industry. Once design a component for LSR molding, we should meet several challenges. In order to create proper molds for high level accuracy and quality of final products. Liquid Silicone Rubber(LSR) Molding requires tighter…

Silicone Rubber Odorless ans tasteless silicone rubber is the most versatile engineering materials, it is widely applied to produce containers, elastic band, waterproofing materials and flexible tubing. Silicone rubber elastomer has unique characteristic of deforming and recovering under load, it can regain its original shape and size after bending, twisting, compressing and stretching. Therefore, its high elasticity is suitable for many component in commercial and industrial applications. In addition, silicone rubber is inert, this is non-reactive and safe for high…

Bio-compatibility Interactions Nowadays, we apply metals, ceramics, and polymers materials in medical devices to improve human health and life quality. The typical biological materials are polymers, natural rubbers, polyurethanes, and silicone rubbers. Therefore, we can formulate these materials for specific biomedical applications with unique characteristics. Liquid Silicone Rubber has excellent mechanical and chemical properties. Furthermore, it is also nontoxic, non-irritant and low cost. These desirable characteristics make it a perfect bio-material. Bio-material in definition is a synthetic or natural material in…

Cross-links in Silicone Silicone rubber is an inorganic polymer, it consists of silicon (Si), oxygen(O), carbon(C) and hydrogen(H). The main chemical chain is silicone and oxygen(-O-Si-O-), so we also call this compound as siloxane. Carbon and hydrogen form into lateral chains as methyl(-CH3), vinyl(-CH=CH2), phenyl(-C6H5) or other organic groups. Similar to all polymers, silicone rubber is created in a polymerization process from Si-OH monomers, which react with metal catalysts (Me3Si-O-SiMe3) to increase chain length, and end these chain with metal catalysts….

Introduction Silicone sterilization is the critical step in any medical LSR application, especially for skin-contact and implantable applications. Liquid silicone rubber is a preferred material option in medical, health-care, baby-care industries. LSR is common applied for sealing applications in long-term, due to its constant properties in a wide range of temperatures. Liquid silicone rubber has excellent low compression set, it can return to original shape with repeatable compression, this quality make it suitable for pumping and pressure sensing applications. Furthermore,…