CAS 62306-27-8 | Polycarbosilane (PCS) | SiC Fiber Precursor & Ceramic Matrix Composite Material | China Manufacturer
Product Name: Polycarbosilane
Synonym: PCS, SiC Ceramic Precursor,Silicon Carbide Precursor
CAS Number: 62306-27-8
Molecular Formula: [SiH(CH3)CH2]n
Appearance: White to pale yellow solid or powder
Purity: ≥ 99%
Ceramic Yield: ≥ 60% at 1000°C
Softening Point: 180 – 250 °C
Solubility: Soluble in toluene, xylene, THF
Packaging: 100g / 500g / 1kg / 5kg (custom available)
Lead Time: 3-7 business days from stock
Made in China | COA & SDS provided with every shipment
- Worldwide Delivery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
CAS 62306-27-8 | Polycarbosilane (PCS) | SiC Fiber Precursor & Ceramic Matrix Composite Material | China Manufacturer
|
🏭 Ceramic Yield
≥ 60%
at 1000°C
|
🔥 Softening Point
180 – 250 °C
Adjustable by MW
|
🧪 Purity
≥ 99%
SiC precursor grade
|
💧 Solubility
Soluble
Toluene, xylene, THF
|
Product Overview
As a China-based manufacturer, Alfa Chemical supplies high-purity Polycarbosilane (PCS, CAS 62306-27-8), a polymer precursor for silicon carbide (SiC) ceramics. This organosilicon polymer is widely used in the production of SiC fibers, ceramic matrix composites, and high-temperature protective coatings. Its molecular structure consists of alternating silicon and carbon atoms with methyl and hydrogen substituents, enabling controlled pyrolysis to SiC with high ceramic yield.
The product is supplied as a white to pale yellow solid or powder with a purity of ≥ 99%. Key properties include a softening point of 180-250°C (depending on molecular weight) and a ceramic yield of ≥60% at 1000°C under inert atmosphere. PCS is soluble in common organic solvents such as toluene, xylene, and THF, making it suitable for solution processing, melt spinning, and impregnation.
We offer flexible packaging from 100g R&D samples to 5kg and custom quantities with fast worldwide delivery. For similar organosilicon polymers and ceramic precursors, explore our related product range.
Key Features
≥60% ceramic yield at 1000°C under inert atmosphere, ensuring efficient conversion to SiC ceramics.
Suitable for melt spinning into continuous SiC fibers with adjustable softening point and molecular weight.
Soluble in toluene, xylene, and THF, suitable for solution impregnation and polymer infiltration pyrolysis (PIP).
Available from 100g R&D samples to 5kg bulk quantities. Reliable supply chain with 3-7 day delivery worldwide.
Applications
Manufacturers of SiC fibers require a melt-spinnable precursor with consistent molecular weight and high ceramic yield for stable fiber production.
✅ Solution: Polycarbosilane with adjustable softening point
PCS can be melt-spun into green fibers, then cured and pyrolyzed to SiC fibers with high tensile strength and thermal stability. Suitable for high-temperature applications in aerospace and energy.
Request technical data →Ceramic matrix composites (CMCs) require a precursor that can infiltrate and convert to SiC with minimal shrinkage and high density.
✅ Solution: PCS for polymer infiltration and pyrolysis (PIP)
PCS is soluble in organic solvents, enabling efficient infiltration into fiber preforms. After pyrolysis, it forms a dense SiC matrix with excellent mechanical and thermal properties.
Get formulation advice →Used to form SiC-based coatings for oxidation and corrosion protection of metals and ceramics at high temperatures.
Request a sample →Used as a precursor for SiC thin films, MEMS structures, and research on polymer-derived ceramics.
Request a quote →Product Specifications
Detailed specifications for Polycarbosilane (CAS 62306-27-8) are listed below. For batch-specific COA or SDS, please contact us.
| Item | Specification |
|---|---|
| Product Name | Polycarbosilane |
| Synonym | PCS, SiC Ceramic Precursor |
| CAS Number | 62306-27-8 |
| Molecular Formula | [SiH(CH3)CH2]n |
| Appearance | White to pale yellow solid or powder |
| Purity | ≥ 99% |
| Softening Point | 180 – 250 °C (adjustable) |
| Ceramic Yield | ≥ 60% at 1000°C (N2/Ar) |
| Density | ~1.10 g/cm³ |
| Solubility | Soluble in toluene, xylene, THF |
| Storage Condition | Dry, inert atmosphere, away from light |
| Shelf Life | 12 months (under recommended storage) |
| Packaging Options | 100g / 500g / 1kg / 5kg, custom available |
| Documents | COA (purity, softening point, ceramic yield), SDS |
Every shipment includes COA and SDS. Click below to request batch-specific documents or technical data for CAS 62306-27-8:
Manufacturing & Quality Control
Alfa Chemical operates a dedicated facility for organosilicon polymers and ceramic precursors. Our Polycarbosilane is synthesized under controlled conditions to ensure high purity (≥99%), consistent molecular weight, and reliable ceramic yield across all batches.
Each batch is tested in-house for purity, softening point, ceramic yield, and solubility. A Certificate of Analysis (COA) and Safety Data Sheet (SDS) are provided with every shipment. Learn more about our facilities →
Packaging & Shipping
- Packaging Options: 100g / 500g / 1kg / 5kg, custom packaging on request
- Shipping Methods: International express courier for sample quantities; air freight or sea freight for bulk orders
- Delivery Time: 3-7 business days after payment confirmation
- Documentation: COA and SDS provided with every shipment
For special packaging or urgent requests, please contact our team directly.
Why Choose Alfa Chemical
- 10+ years focused on organosilicon polymers and ceramic precursors
- Experienced R&D and QC team with expertise in polymer synthesis and ceramic conversion
- In-house QC – purity, softening point, and ceramic yield verified, batch-traceable COA
- Flexible supply – 100g for R&D up to 5kg and custom quantities
- China manufacturer direct – competitive pricing with full COA/SDS traceability
- Explore more other organic chemicals or contact us for custom requirements.
Frequently Asked Questions
It is used as a precursor for SiC fibers, ceramic matrix composites, high-temperature coatings, and polymer-derived ceramics.
Our Polycarbosilane has a ceramic yield of ≥60% at 1000°C under inert atmosphere. Each batch includes a Certificate of Analysis (COA).
The softening point is typically 180-250°C, adjustable based on molecular weight. Please specify your requirement when ordering.
Yes, COA with purity, softening point, and ceramic yield data and SDS are provided with every shipment.
Store in a dry, inert atmosphere away from light. Shelf life is 12 months under proper storage conditions.
Standard MOQ is 100g for R&D samples and 1kg for production quantities. Contact us for custom quantities.
Related products & resources:
* All product specifications are for reference purposes. Users should conduct their own suitability tests under actual conditions. This product is for industrial manufacturing and R&D use only. Not for food, pharmaceutical, or cosmetic applications without specific regulatory compliance testing.
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