POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 156327-07-0 |
| Product name | POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED |
| 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 POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
| Industry | Application | Process |
|---|---|---|
| Coatings & Inks | Wetting and leveling agent | Added to solvent-based or solvent-free coating formulations to reduce surface tension, eliminate Benard cells, and improve substrate wetting |
| Coatings & Inks | Slip agent and anti-blocking agent | Migrates to the coating surface during cure, reducing the coefficient of friction to impart scratch resistance and anti-blocking performance |
| Coatings & Inks | Defoamer/air release agent | Exploits low surface tension to rupture foam films during coating manufacturing and application, thereby eliminating entrained air bubbles |
| Adhesives | Leveling and anti-cratering additive | Added to adhesive systems to improve film uniformity and prevent craters caused by surface tension differentials |
| Adhesives | Slip agent | Added to pressure-sensitive adhesives or sealants to reduce surface tack or friction, facilitating unwind or processing operations |
| Fine Chemicals | Reactive intermediate for resin modification | Utilizes terminal caprolactone functional groups in condensation reactions with isocyanates or polyols to synthesize silicone-modified polyurethane or polyester resins |
Manufacturing Quality Control of POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Assessment of physical state and color under controlled lighting conditions. |
| Viscosity | Rotational Viscometry | Measurement of resistance to flow using a calibrated spindle at specified temperature and shear rate. |
| Acid Value | Acid-Base Titration | Quantification of acidic groups by titration with standardized KOH solution using phenolphthalein indicator. |
| Hydroxyl Value | Acetic Anhydride Acetylation | Determination of terminal OH groups via acetylation followed by back-titration of unreacted anhydride. |
| Molecular Weight (Mn, Mw) | Gel Permeation Chromatography (GPC) | Separation by hydrodynamic volume in solution, calibrated against polystyrene standards. |
| Polydispersity Index (PDI) | Gel Permeation Chromatography (GPC) | Calculated as Mw/Mn from GPC elution profile data. |
| Refractive Index | Refractometry | Measurement of light bending angle at air-sample interface at 25 C using calibrated refractometer. |
| Moisture Content | Karl Fischer Coulometric Titration | Electrochemical quantification of water based on iodine generation proportional to water content. |
| Residual Catalyst (e.g., Sn, Ti) | ICP-OES | Elemental detection and quantification via plasma-excited atomic emission spectroscopy. |
| Volatile Organic Content (VOC) | Gas Chromatography (GC-FID) | Separation and detection of low-boiling impurities using flame ionization detection. |
| pH (10% w/w aqueous dispersion) | pH Meter Measurement | Electrochemical measurement of hydrogen ion activity in aqueous dispersion. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Ultra-trace elemental analysis using inductively coupled plasma mass spectrometry. |
Technical Specifications of POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
| Test Item | Specification |
|---|---|
| Appearance | Clear, colorless to pale yellow 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) | 0.96–0.98 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 POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
Safety Information of POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED
Industrial POLY(DIMETHYLSILOXANE), BIS(HYDROXYALKYL) TERMINATED 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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