Heat Resistance
The material’s temperature range is truly incredible, it can withstand and perform better than all other polymers when met with extremely high temperatures. Some components of silicone rubber can withstand temperatures of up to 305°c.
Sterilisation
Silicone rubber is very commonly found in food and medical products, this is because silicone rubber has a non-porous nature which means that it will not be susceptible to a buildup of bacteria.
High Tensile Strength
The material was designed to have far better elongation and tear strength compared to the general purpose grade. This helps the products that they are used in to be more resistant to abrasion and fatigue.
Low Chemical Reactivity
Unlike other rubbers, silicone does not have a carbon to carbon backbone, it has silicone to oxygen backbone. This means that where other rubbers are susceptible to damage from ozone, chemicals, extreme heat and other potential hindrances, silicone rubber can comfortably withstand them.
Versatility
The material can be used in a huge range of applications thanks to its countless unique benefits.
Automotive
In the automotive industry, key applications of silicone rubber include sealants, gaskets, connectors, spark plug tires, radiators, heat exchangers, water-pump gaskets, engine covers, valve covers, etc.
Electrical & Electronics
Main E&E applications of silicone rubbers are cable terminations, connectors, insulators, parts for energy transmission, engine gaskets, control unit gaskets, etc. They are also widely used in lighting applications such as lens molds, reflectors, diffusers, illumination, floodlighting etc.
Medical and Healthcare
In medical and health care applications, silicone rubbers are widely used due to their excellent biocompatibility. Their main applications are medical instruments, medical cables, medical textile coating, baby bottle nipples and more.
Consumer Products – Cookware, Food Contact
They are widely used in food processing as well as packaging equipment, drinks wending machines, baking trays and molds, over door profiles, etc. Silicone rubbers are resistant to cooking fats, sterilizing fluids hence making them suitable for these applications.
Leisure
In addition to transparency and high tear strength, silicone rubber parts are pleasant to touch with high skin feel and they are physiologically inert to living tissues.
The manufacturing process of silicone products typically involves the following steps:
Mixing
The raw materials are mixed together in a large vat to create the base material for the product.
Molding
The mixed material is then poured into molds that are designed to create the desired shape of the product.
Curing
After molding, the product is cured or hardened by exposing it to heat or chemicals. This process can take anywhere from a few minutes to several hours depending on the size and complexity of the product.
Finishing
Once cured, the product is removed from its mold and any excess material is trimmed off. It may also undergo additional finishing processes such as polishing or coating before it is ready for use.
Silicone products can be manufactured using different methods depending on their intended use and complexity. Some common methods include injection molding, compression molding, and extrusion.
It is essential to ensure the quality of silicone products before they are released into the market. There are several means of testing the quality of silicone, which we will discuss below.
1.Tensile Testing
This test measures the force required to stretch a sample of silicone until it breaks. It helps determine the strength and elasticity of the material. The results provide information on the ultimate tensile strength, elongation at break, and modulus of elasticity.
2.Compression Set Testing
This test measures how much a sample of silicone changes shape after being compressed for a specific period and then released. It helps determine how well the material can recover its original shape after being compressed. The results provide information on the percentage compression set.
3.Durometer Hardness Testing
This test measures the hardness or softness of a sample of silicone by measuring its resistance to indentation by an indenter probe with a specific shape and size. It helps determine if the material is too hard or too soft for its intended use. The results provide information on the Shore hardness.
4.Extractables Testing
This test determines if any substances can be extracted from a sample of silicone when it comes into contact with different solvents or liquids such as water, alcohol, or oil. It helps identify any potential contamination risks associated with using silicone in different applications such as food packaging or medical devices.
Shipping
Unlike plastic, which is rigid and may become brittle and crack, silicone is flexible and absorbs the shock of harsh shipping environments. When you use us of silicone rubber manufactured, you don’t need to worry about adding special packaging requirements to the bill of materials (BOM) for the silicone components being purchased.
Bulk Packaging
Silicone rubber keypads may be packed in bulk directly into a cardboard box, or they may be packaged into poly bags individually or in various quantities to satisfy your unique logistics requirements. It’s not necessary to add bubble wrap, foam or air cushioning products to your packaging.
Storage
Silicone rubber products are easily stored and lower the storage concerns many companies face. Silicone components alone, without added features such as adhesive layers, don’t have a shelf life and may be stored shipping-boxes-storageindefinitely. They may be left in the original shipping cartons, allowing them to be stacked in a warehouse or they can be removed and placed in bins. If you need your product readily available for use, they may be exposed during storage and can be quickly and easily cleaned from dust which will not harm them. Silicone products also can withstand temperature changes which may affect many storage areas.
Silicone rubber has limited recycling opportunities. However, pure silicone rubber is not easily recyclable. Uncontaminated silicone rubber can be sometimes ground and reused. Another option is to reuse silicone rubber products instead of recycling them. This in turn reduces waste and conserves resources.
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