VINYL TERMINATED POLYDIMETHYLSILOXANE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 68083-19-2 |
| Product name | VINYL TERMINATED POLYDIMETHYLSILOXANE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for VINYL TERMINATED POLYDIMETHYLSILOXANE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk VINYL TERMINATED POLYDIMETHYLSILOXANE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of VINYL TERMINATED POLYDIMETHYLSILOXANE
| Industry | Application | Process |
|---|---|---|
| Rubber & Plastics | Base polymer for silicone rubber and silicone resins | Serves as the base polymer in addition-cure liquid silicone rubber (LSR) or high-temperature vulcanizing (HTV) silicone rubber, undergoing addition curing with hydrogen-containing siloxanes under catalytic conditions. |
| Rubber & Plastics | Raw polymer for compounded rubber | Acts as the primary elastomer in compounded rubber formulations; compounded with reinforcing fillers (e.g., fumed silica) and additives, then processed via mixing, preheating, and compression molding to produce solid silicone rubber products. |
| Electronics & Electrical Appliances | Electronic encapsulants and conformal coatings | Applied via addition-cure mechanism to encapsulate or coat electronic components, providing moisture resistance, dust protection, and electrical insulation. |
| Mold Manufacturing | Precision mold rubbers and pad printing silicones | Processed via addition-cure vulcanization to produce high-precision, low-shrinkage soft molds for replicating resin crafts, candles, food items, and precision mechanical parts. |
| Medical & Food-Contact Applications | Medical tubing and food-grade articles | Processed via platinum-catalyzed addition-cure vulcanization to yield non-toxic, odorless, physiologically inert materials suitable for medical devices and food-contact applications. |
| Coatings & Inks | Silicone-based coatings and release coatings | Functions as the film-forming component; crosslinked and cured to form heat-resistant, weather-resistant, and release coatings. |
| Textiles & Leather | Fabric finishing agents and softeners | Applied to fabric surfaces after emulsification or dissolution, imparting smoothness, softness, and elasticity. |
| Chemical Raw Materials | Intermediate for silicone-modified materials | Utilizes the reactive vinyl double bond in graft copolymerization or block copolymerization reactions to modify polyolefins or acrylic resins. |
Manufacturing Quality Control of VINYL TERMINATED POLYDIMETHYLSILOXANE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Vinyl Content | 1H NMR Spectroscopy | Quantifies vinyl group protons (CH2=CH-) relative to methyl or siloxane backbone protons using integration ratios. |
| Viscosity | Capillary Viscometry | Measures flow time of sample through a calibrated capillary tube under gravity, converted to kinematic viscosity. |
| Acid Number | Acid-Base Titration | Determines free acidic impurities by titration with standardized KOH solution using phenolphthalein indicator. |
| Hydroxyl Content | Acetic Anhydride Acetylation Titration | Derivatizes OH groups with acetic anhydride; excess anhydride hydrolyzed and back-titrated with NaOH. |
| Refractive Index | Refractometry | Measures bending of light at air-sample interface using a calibrated refractometer at specified temperature. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Compares sample color to APHA platinum-cobalt standard solutions or measures absorbance at 455 nm. |
| Volatile Matter | Thermogravimetric Analysis (TGA) | Determines mass loss under controlled heating (e.g., 150 C for 2 h) in inert atmosphere. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after high-temperature ashing (e.g., 800 C) and cooling to constant weight. |
| Heavy Metals (Pb, Cd, Hg, Cr) | ICP-OES | Quantifies trace metal concentrations by plasma excitation and elemental emission line intensity measurement. |
| Moisture Content | Karl Fischer Coulometric Titration | Electrochemically determines water content via iodine generation and stoichiometric reaction with water. |
| Molecular Weight Distribution | Gel Permeation Chromatography (GPC) | Separates polymer chains by hydrodynamic volume in solution and compares elution times to polystyrene standards. |
| Flash Point | Cleveland Open Cup (COC) Method | Determines lowest temperature at which vapors ignite momentarily when exposed to flame under standardized conditions. |
Technical Specifications of VINYL TERMINATED POLYDIMETHYLSILOXANE
| Test Item | Specification |
|---|---|
| Appearance | Clear, colorless liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.400 - 1.415 |
| Relative Density (20°C/25°C) | 0.95 - 0.98 g/cm³ |
| Acid Value (mg KOH/g) | <=0.5 |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of VINYL TERMINATED POLYDIMETHYLSILOXANE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of VINYL TERMINATED POLYDIMETHYLSILOXANE
| Pictograms |    |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of VINYL TERMINATED POLYDIMETHYLSILOXANE
Industrial VINYL TERMINATED POLYDIMETHYLSILOXANE Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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