SaneZen Group’s Comprehensive Analysis of Silicone Rubber and RubberMixing Compounds: Material Properties, Applications, and Selection Guide

Introduction: Stepping into the World of Rubber and Silicone

In modern industrial manufacturing, rubber and silicone materials have
become indispensable key materials in numerous high-demand application
scenarios due to their unique physical and chemical properties. As a
professional rubber mixing compound supplier and solution
provider, SaneZen Group (Shanzhen Group) leverages its profound
expertise in the R&D, production, and application of rubber and silicone
materials to offer customers comprehensive services ranging from
material selection and formulation design to process support. This
article systematically introduces the product portfolio, performance
characteristics, application scenarios, and selection advice for SaneZen
Group’s silicone rubber compounds and rubber mixing compounds,
providing practical reference for engineers, procurement personnel, and
industry practitioners.

Chapter 1: Silicone Rubber Mixing Compounds – The Core Choice for
High-Performance Elastomers

Silicone rubber is a polymer elastomer with a silicon-oxygen (-Si-O-)
main chain, offering excellent thermal stability, weather resistance,
electrical insulation, and physiological inertness. It is widely used in
electronics, medical, automotive, and aerospace fields. As a
leading silicone rubber compounds manufacturer in China, SaneZen
Group provides a full range of silicone rubber mixing compound products
to meet different process and performance needs.

 Modern SANZEN silicone rubber R&D office environment, featuring dedicated workspaces for our technical team. This image reflects our commitment to "Fighting for the Concept of Raw Materials," showcasing the professional setting where high-performance, high-tear-resistance silicone compounds are developed through innovation and collaboration for Win-Win Future .
 Advanced silicone rubber manufacturing workshop at SANZEN, showing specialized production machinery and controlled environment essential for maintaining consistent quality in high-tear-resistance silicone rubber production.

1.1 General-Purpose Silicone Rubber Mixing Compounds Series (SR1/2/3XXU
Series)

Product Characteristics:
General-purpose silicone rubber compounds offer a good balance of
comprehensive properties, excellent appearance, easy processing and
demolding, non-sticking to rollers, with only slight re-plasticization
after long-term storage, enabling wide filler blending and coloring.

Application Segmentation:

  • SR1XXU Series: Suitable for compression molding processes,
    commonly used for products like keypads, sealing rings, O-rings,
    swimming caps, etc., with temperature resistance up to 200°C, making
    them a type of high temperature silicone rubber.
  • SR2XXU Series: Suitable for silicone rubber compounds for
    extrusion and molding
    , such as sealing strips, sheets, tubes, etc.,
    and can also be used for molded and calendered products. Vacuum
    packaging facilitates storage.
  • SR3XXU Series: Suitable for molding, extrusion, and calendering
    processes, utilizing a platinum cure system for excellent pot life.
    Suitable for kitchenware, cables, seals, etc., representing silicone
    rubber with platinum cure for fast processing
    .

1.2 High Mechanical Performance Silicone Rubber Mixing Compounds
Series (SR4/5XXU Series)

Product Characteristics:
Building upon the general-purpose series to further enhance mechanical
strength and appearance, suitable for molded parts with higher demands
on appearance and mechanical properties.

  • SR4XXU Series: Excellent mechanical properties, slight
    re-plasticization after long-term storage.
  • SR5XXU Series: Good mechanical properties, excellent appearance,
    easy processing and demolding, requiring no or only slight
    post-curing.

1.3 High Rebound, Low Compression Set Silicone Rubber Series (SR7XXU &
SR8XXU Series)

Product Characteristics:
Features high resilience and low compression set rate, suitable for
dynamic sealing and cushioning scenarios, offering high rebound low
compression set silicone rubber
 and silicone rubber compound with
good compression set resistance
.

  • SR7XXU Series: Suitable for extrusion and molding processes with
    excellent comprehensive performance.
  • SR8XXU Series: Designed specifically for applications requiring
    high rebound and low compression set, such as oil seals, gaskets,
    rollers, etc.
SANZEN Advanced Silicone Rubber Testing Laboratory, equipped with precision instruments and staffed by expert technicians to perform rigorous quality control, ensuring data accuracy for high-tear-resistance HTV silicone compounds.

1.4 Oil-Resistant, High-Temperature Specialty Silicone Series
(SR21XXUOR & SR22XXU Series)

Product Characteristics:
Maintains basic silicone properties while offering excellent oil
resistance, high-temperature resistance, and low swell.

  • SR21XXUOR Series: Low compression set, good oil resistance,
    resistant to structuring during long-term storage.
  • SR22XXU Series: High rebound, oil-resistant, temperature-resistant
    up to 225°C, suitable for various processes like molding, injection
    molding, and extrusion.

1.5 High Tear Strength Silicone Series (SR32/33XXU Series)

Product Characteristics:
Features extremely high tear strength, high transparency, and yellowing
resistance. Complies with FDA food contact standards, suitable for
complex structural parts requiring high tear resistance. This series
includes products like high transparency high tear strength silicone
rubber. As a high tear strength silicone rubber factory,
 we excel
in producing these grades.

  • SR32XX Series: High tear strength, high transparency, yellowing
    resistant.
  • SR33XX Series: Ultra-high tear strength, excellent physical
    properties.

1.6 Flame Retardant and High-Temperature Specialty Silicone Series

1.7 Phenyl Silicone Rubber Series (SR32/35UDP Series)

Product Characteristics:
Introducing phenyl groups into the main chain imparts excellent
low-temperature resistance (-100°C), radiation resistance, and ablation
resistance. Wide operating temperature range (-100°C to 250°C), widely
used in automotive, petrochemical, astronomy, and military fields. This
series provides phenyl silicone rubber for aerospace sealing.

1.8 Fluorosilicone Rubber Series (FS22XXU & FS82XXU Series)

Product Characteristics:
Combines the high-temperature resistance of silicone rubber with the oil
and solvent resistance of fluororubber, suitable for sealing and
protection in extreme environments. As a fluorosilicone rubber
manufacturer in China, we produce fluorosilicone rubber for oil and
solvent resistance.

  • FS22XXU Series: Moldable fluorosilicone rubber, oil-resistant,
    resistant to polar solvents, high rebound, low compression set.
  • FS82XXU Series: Extrudable fluorosilicone rubber, good processing
    performance, resistant to non-polar chemicals.
Fluorosilicone Rubber
Fluorosilicone Rubber
Fluorosilicone Rubber

1.9 Liquid Silicone Rubber Series (LSR61/71/82XXAB Series)

Product Characteristics:
Two-component liquid silicone rubber, high transparency, high purity,
compliant with FDA, ROHS, REACH, etc. Suitable for injection molding,
widely used in baby products, medical breathing masks, automotive parts,
etc. As a reliable liquid silicone rubber LSR supplier, we provide
these high-purity materials. This series exemplifies silicone rubber
for food contact applications
 and can be tailored to meet requirements for rubber compound with FDA certification.

Chapter 2: Rubber Mixing Compounds – Outstanding Performance of
Specialty Synthetic Rubbers

In addition to the silicone system, SaneZen Group also provides various
high-performance synthetic rubber mixing compounds to meet special
working condition requirements. Leveraging our robust production and R&D
platform, we ensure stable, high-quality, and innovative rubber
solutions for our customers. Our rubber compounding factory is the
backbone of this capability.

 New rubber compound plant
New rubber compound plant to produce full range of rubber compound

2.1 Core Advantages of SaneZen Rubber Mixing Compounds

  1. Full Range of Rubber Coverage: Product line covers over 33 types
    of rubber, providing one-stop material selection from
    general-purpose to specialty rubbers, including formulating rubber compound for oil and chemical resistance.
  2. Profound Professional Experience: Over 20 years of professional
    rubber R&D and production experience. Our technical team has a deep
    understanding of material science and application processes.
  3. Independent Color Matching Factory: Dedicated independent color
    mixing factory ensures stable and precise colors, meeting stringent
    customer appearance requirements.
  4. Strong Production Capacity & Formulation Library: Annual
    capacity exceeds 150,000 metric tons, backed by a library of 10,000+
    proven mature rubber mixing compound formulas for rapid response to
    custom needs. This supports our role as a custom rubber compound
    manufacturer in China
     for custom rubber compounding for extreme
    temperature applications
     and other needs.
  5. Specialty Rubber Dedicated Production Lines: Dedicated
    production lines for specialty materials like Fluorocarbon Rubber
    (FKM) ensure product purity and performance consistency.
  6. Large-Scale Production Facilities: Over 26 professional rubber
    mixing compound production lines enable efficient, stable, and batch
    production.

2.2 Nitrile Rubber/PVC Blend (NV7030)

Product Characteristics:
Combines the oil resistance of nitrile rubber with the flame retardancy
and ozone aging resistance of PVC. Wear and tear resistant, with good
anti-static properties. This is our nitrile rubber PVC blend for oil
and flame resistance
, suitable for industrial components requiring
both oil resistance and flame retardancy.

NBR/PVC sample
 NBR/PVC sample
 NBR/PVC sample
NBR/PVC sample

2.3 ACM Rubber and Fluorocarbon Rubber (FKM) Pre-mix

Product Characteristics:
Fluorocarbon rubber offers excellent high-temperature resistance
(comparable to silicone), chemical corrosion resistance, radiation
resistance, and vacuum performance. It is the preferred high-end sealing
material in aviation, aerospace, chemical, and automotive fields. We
supply FKM rubber compound for high temperature sealing.
Application Areas:
High/low-temperature sealing, vacuum equipment, chemical installations,
automotive engine systems, aerospace propulsion systems, etc.

2.4 Full Range of Rubber Mixing Compound Services

SaneZen Group offers full-range custom mixing compound services from
natural rubber to various synthetic rubbers, covering functional needs
such as temperature resistance, oil resistance, aging resistance, flame
retardancy, and conductivity. This includes providing rubber compound
for oil and chemical resistance
. The advantage behind this is our
powerful R&D system and production capacity.

New rubber compound plant

Chapter 3: Panoramic Analysis of Application Fields

3.1 Automotive Industry

3.2 Electronics and Electrical

  • Keypads and Seals: Silicone keypads, waterproof sealing rings,
    including silicone rubber for electronic waterproof sealing.
  • Cable Sheathing: Flame-retardant cables, high-temperature resistant
    cables.
  • Insulating Components: Transformer seals, electronic equipment
    protection.

3.3 Medical and Food Contact

3.4 Aerospace and Military

  • Fuel System Seals: Aircraft fuel tank seals, hydraulic system seals,
    using phenyl silicone rubber for aerospace sealing.
  • Extreme Environment Components: Low-temperature resistant,
    radiation-resistant, ablation-resistant seals.
  • Sensors and Electrical Insulating Components.

3.5 Industrial and Energy

  • Petrochemical Equipment: Pump and valve seals, pipeline connection
    seals.
  • Power Facilities: Transformer seals, insulators.
  • Rail Transit: Door seals, connector protection.

Chapter 4: How to Select Correctly – A Guide for Aligning Technical
Parameters with Customer Needs

Selecting the right material is key to product success. SaneZen Group
recommends material selection based on the following dimensions:

4.1 Operating Condition Analysis

  • Temperature Range: Long-term service temperature and short-term peak
    temperature.
  • Media Contact: Oils, solvents, acids, alkalis, moisture, etc.
  • Pressure and Deformation: Static or dynamic sealing, compression set
    requirements.
  • Environmental Factors: Ozone, UV, radiation, mold, etc.

4.2 Process Adaptability

  • Molding Method: Compression, extrusion, injection, calendering.
  • Curing System: Peroxide, platinum, two-component.
  • Post-Processing Needs: Need for secondary vulcanization, surface
    treatment requirements.

4.3 Regulatory and Standard Compliance

4.4 Economics and Supply Chain

  • Cost Target: Material cost vs. total cost.
  • Supply Stability: Capacity guarantee, delivery lead time.
  • Technical Support: Formulation adjustment, process optimization,
    problem diagnosis.

Chapter 5: Future Trends and Innovation Directions

With industrial upgrading and technological development, rubber and
silicone materials are evolving in the following directions:

  • High-Function Integration: One material possessing multiple
    characteristics like temperature resistance, oil resistance, flame
    retardancy, and conductivity simultaneously.
  • Green and Eco-Friendly: Bio-based raw materials, degradable
    rubber, solvent-free manufacturing processes.
  • Smart Manufacturing: Material digitization, process simulation,
    online monitoring, and quality control.
  • Ultra-Long Service Life: Achieving longer service life and
    reliability in extreme environments.

SaneZen Group continues to invest in R&D and collaborates with customers
on innovation, committed to providing safer, more efficient, and more
sustainable rubber solutions for global industry.

Conclusion

As the “flexible cornerstone” of industry, the performance of silicone
and rubber mixing compounds directly impacts the reliability, safety,
and service life of the final product. SaneZen Group, with
its comprehensive product line, profound experience, advanced
manufacturing capabilities, and extensive formulation library, is not
just a material supplier but a trusted technical partner for customers.
Through professional and efficient service, we help customers build
differentiated products and achieve win-win value in the competitive
market.

We look forward to partnering with you to explore the endless
possibilities of material science.