Oh Polymer/ 107 Silicon Rubber

107 Silicone Rubber is a single-component, room temperature vulcanizing (RTV) silicone elastomer based on hydroxyl-terminated polydimethylsiloxane. It appears as a transparent, viscous liquid. Upon exposure to atmospheric moisture, it cures to form a flexible, rubbery solid. It is renowned for its excellent weather resistance, electrical insulation, wide service temperature range, and chemical inertness.

  • Synonyms:

    RTV-1 Silicone, Methyl RTV Rubber,

  • Formula:

    HO-Si(CH3)2O[Si(CH3)2O]nSi(CH3)2-OH

  • CAS NO.:

    63148-62-9

  • Package:

    20KG Pail, 200KG Drum

  • Certificate:

    ISO9001

Our Achievement

Global Reach: Our 107 Silicone Rubber has been successfully exported and applied in key markets across the globe, including but not limited to the United States, Germany, India, South Korea, and Malaysia. Our product has consistent quality and ability to meet diverse international standards.


Equivalent Alternatives:   Our product has served as a reliable alternative to Dow (Silicones), Momentive, Wacker, Shin-Etsu, Bluestar Silicones for several local manufacturers, helping them reduce costs with comparable (or even superior) results in performance.


Key Applications
  • Electronic Potting & Encapsulation
  • Flexible Mold Making
  • Sealants & Adhesives
  • Craft & DIY Applications
  • Industrial Gaskets & Coatings
  • Medical Device Prototyping
The main detailed uses of the product
  • Electronic Potting & Encapsulation
    Electronic Potting & Encapsulation

    Used for protecting sensitive electronic components from moisture, dust, vibration, and thermal shock. Its excellent dielectric strength and flexibility make it ideal for transformers, sensors, and circuit boards.

  • Flexible Mold Making
    Flexible Mold Making

    Widely used to create high-fidelity flexible molds for casting resins, plaster, concrete, and low-melting-point metals in art, sculpture, and industrial reproduction due to its low shrinkage and fine detail reproduction.

  • Sealants & Adhesives
    Sealants & Adhesives

    Formulated into sealants for weatherproofing and bonding in construction, automotive, and aerospace applications. It seals joints, gaps, and seams against water, air, and contaminants.

  • Craft & DIY Applications
    Craft & DIY Applications

    Popular in crafts and DIY projects for making flexible molds, special effects props, and custom rubber parts because of its ease of use, non-toxic nature after curing, and flexibility.

Why Choose Our Oh Polymer/ 107 Silicon Rubber?


Superior Flexibility and Durability: Our 107 Silicone Rubber cures to form a highly flexible, tear-resistant elastomer that maintains its properties across a wide temperature range (-60°C to 200°C), ensuring long-term performance.

Excellent Electrical Insulation and Stability: The cured rubber offers outstanding dielectric properties and resistance to ozone/weathering, providing reliable protection for electronic components exposed to harsh environments.

Consistent Viscosity and Curing Profile: We guarantee batch-to-batch consistency in viscosity and curing speed, which is critical for automated dispensing, mold-making precision, and predictable production workflows.

Versatile Base Polymer for Formulations: As a high-quality base polymer, our product is an ideal starting point for developing specialized sealants, encapsulants, and molded rubber products tailored to specific needs.

Commitment to Quality and Innovation

We are committed to providing high-quality 107 Silicone Rubber that meets stringent international standards. Our focus on innovation and sustainability ensures that our products not only enhance your applications but also align with evolving environmental regulations and industry trends.

Your questions about our products