Octamethyl cyclotetrasiloxane CAS: 556-67-2

Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2
Octamethyl cyclotetrasiloxane CAS: 556-67-2

Octamethyl cyclotetrasiloxane CAS: 556-67-2

Product Description

Octamethylcyclotetrasiloxane (D4) is a clear, colorless, low-viscosity cyclic siloxane fluid with excellent thermal stability, low surface tension and superior dielectric properties. As a key intermediate in the silicone industry, it serves as the primary raw material for producing high-performance silicone polymers, fluids and elastomers, widely applied in personal care, industrial lubricants, rubber processing and specialty chemical synthesis.

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Introduction

Available Forms:

Technical Grade D4 (Purity ≥99.5%)

High Purity Grade D4 (Purity ≥99.9%)

Customized distillation grades

Available Package:

180kg steel drums

900kg IBC totes

20MT ISO tanks

Bulk shipment (upon request)

Key Applications:

  1. Silicone Polymer Production​ – Primary ring-opening monomer for synthesizing polydimethylsiloxane (PDMS) fluids, gums and resins.
  2. Personal Care & Cosmetics​ – Base fluid for skin creams, hair care products, deodorants and color cosmetics, providing smooth texture and excellent spreadability.
  3. Rubber Processing​ – Raw material for producing silicone rubber compounds, improving processing flow and vulcanization properties.
  4. Industrial Lubricants​ – Component in high-temperature, low-volatility lubricants and greases for precision instruments and machinery.
  5. Textile & Leather Finishing​ – Softening agent and water-repellent additive for fabric and leather treatment.
  6. Paper Release Coatings​ – Key ingredient in release agents for pressure-sensitive adhesive papers and labels.
  7. Electronic Materials​ – Dielectric fluid and encapsulant precursor for electronic components and semiconductor processing.
  8. Specialty Chemical Synthesis​ – Intermediate for functional silicones, silane coupling agents and specialty organosilicon compounds.
  9. Medical & Pharmaceutical Auxiliaries​ – Base material for certain medical-grade silicone products (compliant with relevant regulations).

Features:

High chemical and thermal stability

Low vapor pressure and volatility

Excellent compatibility with organic polymers

Superior spreading and wetting properties

Consistent molecular structure and purity

Low freezing point for easy handling in cold environments

Environmentally favorable degradation profile (per industry standards)

Typical Industries Served:

Silicone Manufacturing | Personal Care & Cosmetics | Rubber & Plastics | Textile Industry | Electronics | Industrial Lubricants | Paper & Packaging | Specialty Chemicals

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FAQ

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What are the payment terms?

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We offer comprehensive services including product customization, flexible packaging, sample support, professional QC testing, on-time delivery, and after-sales technical guidance to ensure your satisfaction.

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How soon can the goods be shipped after placing an order?

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We will take the transaction date as the starting point and make every effort to arrange shipment as quickly as possible. The specific shipping time will depend on product inventory and production schedules, and we will keep in close communication with you throughout the process to ensure you are always informed of the logistics progress.

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Which currencies are accepted for payment?

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We accept both USD and RMB, making it convenient for you to choose the most suitable settlement method.

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How do you ensure product quality?

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We support a "sample first, payment later" approach. You may obtain samples for testing first and only make the payment after confirming that the samples meet your requirements. In addition, we can provide product testing reports upon your request, and take photos or videos during the shipping process, giving you complete peace of mind.

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What does the after-sales service include?

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For different products, we provide comprehensive after-sales support covering everything from basic performance service to quality assurance. For detailed after-sales terms and scope, please refer to our after-sales service page.

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