Product Description:
Silicone Rubber for Molding (Precipitated Silica): Perfect for Colored Parts
Our specialized silicone rubber compounds, utilizing precipitated silica as a reinforcing filler, are specifically designed for molding applications where vibrant and consistent coloration is desired. Precipitated silica allows for excellent pigment dispersion, resulting in brightly colored silicone rubber parts with superior aesthetic appeal without compromising on essential mechanical properties.
These versatile materials are ideal for manufacturing a variety of molded components, from visually appealing consumer goods to functional sealing parts and durable rubber keypads.

Diverse Applications of Our Moldable Silicone Rubber
Our precipitated silica-based silicone rubber is well-suited for molding a wide array of products, particularly colored parts, including:
Colored Rubber Parts: Consumer electronics accessories, toys, promotional items, and other visually appealing components.
Sealing Parts: Gaskets, O-rings, and seals where color-coding or aesthetic matching is required.
Rubber Keypads: For remote controls, electronic devices, automotive interiors, and industrial equipment, offering both tactile feedback and vibrant colors.
General Molded Silicone Rubber Parts: Including diaphragms, valves, connectors, and other components requiring flexibility and durability.
Our Silicone Rubber for Molding (Precipitated Silica) Product Range
Explore our selection of silicone rubber compounds formulated with precipitated silica, offering excellent colorability and a range of mechanical properties:
Index | ES-6120 | ES-6130 | ES-6140 | ES-6150 | ES-6160 | ES-6170 | ES-6180 |
Appearance | Milky-white or light-gray, no mechanical impurities. |
Hardness, Shore A | 20 ±3 | 30 ±3 | 40 ±3 | 50 ±3 | 60 ±3 | 70 ±3 | 80 ±3 |
Tensile Strength, (MPa) ≥ | 3.5 | 5 | 6 | 7 | 6.5 | 6.5 | 6 |
Elongation At Breakage, % ≥ | 750 | 440 | 380 | 320 | 280 | 180 | 120 |
Tensile Set At Break, % ≤ | 10 |
Tear Strength, (kN/m) ≥ | 10 | 15 | 16 | 18 | 18 | 16 | 15 |
We offer a wide palette of color options and can work with you to achieve specific color matches for your applications. Contact us for custom color solutions.
Key Advantages of Our Precipitated Silica Silicone Rubber for Molding
Excellent Colorability: Achieves vibrant and consistent colors in molded parts.
Good Mechanical Properties: Offers a range of hardness, tensile strength, and elongation.
Versatile Applications: Suitable for colored parts, seals, keypads, and more.
Good Flexibility and Elasticity: Ensures durability and long-term performance.
Temperature Resistance: Maintains properties across a broad temperature range.
Good Tear Strength: Provides resistance to tearing and abrasion.
Customizable Colors: We can match specific color requirements.
Expert Support for Your Molding Needs
Our experienced technical team is available to assist you in selecting the optimal silicone rubber compound for your molding application and color requirements. We provide comprehensive technical support and can help you achieve the best results for your colored silicone rubber parts.
Contact us today to discuss your project and request a quote.