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Trelleborg’s expertise spans the full spectrum of silicone manufacturing, from Liquid Silicone Rubber (LSR) and High Consistency Rubber (HCR) injection molding to multicomponent technology, compression molding and custom extrusions.

This is underpinned by our deep materials science expertise; we don't just process silicone — we engineer it. Through in-house custom compounding and unique formulation capabilities, we tailor material properties to meet your specific application needs. Our team guides you to the ideal production method based on part complexity, volume requirements, and cost targets, ensuring a high-performance solution that protects what matters most.
Read out LSR Capabilities brochure

Comprehensive Silicone Processing Capabilities

We partner with you from initial design and material formulation to high-volume production to deliver solutions that enhance performance.

Silicone Injection Molding

We are a leading expert in silicone injection molding for both Liquid Silicone Rubber (LSR) and High Consistency Rubber (HCR). This process produces complex, high-precision components with exceptional consistency.
  • LSR Injection Molding: We leverage advanced LSR technology to produce precision components. This process, ideal for creating complex geometries, is seeing exponential growth into high-tech fields.
  • HCR Injection Molding: We combine industry-leading custom formulation expertise with extensive injection molding capabilities to produce engineered solutions to meet unique customer requirements. 
  • Multicomponent Technology: Also known as 2C LSR technology or co-injection, this process chemically bonds silicone with technical plastics and other materials in a single, integrated process. This approach helps create robust, multi-functional parts while eliminating extra assembly steps.
Injection Molding Machine

Silicone Compression and Transfer Molding

Compression and transfer molding of HCR silicone rubber offer a versatile, cost-effective solution for producing components in low-to-medium volumes. This method is suitable for everything from simple O-Rings to complex geometries.

Custom Silicone Extrusions

We manufacture HCR silicone extrusions for various applications, including silicone profiles, tubing and cords. Whether you require standard shapes or custom profiles, we deliver high-quality extruded silicone components combined with automated cutting and joining processes to enhance our offering.

Custom HCR Silicone Compounding & Material Science

Innovation begins at the material level. Our in-house custom silicone compounding capabilities give us complete control over material performance, allowing us to engineer proprietary silicone rubber compounds that meet your specific application requirements.
  • Custom formulations: We develop completely tailored HCR grades with enhanced properties, to deliver reliable performance in your application.
  • HCR silicone derivatives: For applications requiring resistance to hydrocarbon fluids and solvents, we offer advanced fluorosilicone compounds (FVMQ) that combine the thermal stability of silicone (from -60°C to +250°C/-76 °F to +482 °F) but with enhanced chemical compatibility. For damping and exceptional low temperature performance, we also offer phenyl silicone (PVMQ), both of which can also be completely tailored to exacting needs.
  • Performance testing: We validate critical material properties to ensure reliability in demanding environments
Find out more about our silicone compounding capabilities
Mixing Machine

See Silicone in Action

Discover the versatility and precision of our silicone expertise
What is Silicon?
Where Does Our Expertise Come into Play?
Putting Quality First
Solutions Through Customer-Focused Partnerships

Questions and Anwers

  • What is the difference between LSR and HCR silicone molding?
    LSR (Liquid Silicone Rubber) molding uses a liquid raw material ideal for high-precision, complex parts and automated high-volume production. HCR (High Consistency Rubber) starts as a solid clay-like material and is versatile for both injection and compression molding, often used for extrusions and lower volume complex parts.
  • Does Trelleborg offer custom silicone formulations?
    Yes, we utilize in-house compounding to engineer proprietary silicone rubber compounds, including fluorosilicone (FVMQ) for chemical resistance and phenyl silicone (PVMQ) for low-temperature performance.
  • Can Trelleborg bond silicone to other materials?
    Yes, we specialize in multicomponent technology (2C LSR) that chemically bonds silicone with technical plastics and other materials in a single integrated process, eliminating the need for secondary assembly.