Polycarbonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 25037-45-0 |
| Product name | Polycarbonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeElectronic GradeMaterial GradeFood Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| 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 Polycarbonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Polycarbonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Polycarbonate
| Industry | Applications | Processing Methods |
|---|---|---|
| Electronics & Electrical | Mobile phone housings, laptop housings, LED lamp covers, connectors, relay housings | Injection molding |
| Automotive | Headlamp covers, instrument panels, rearview mirror housings, interior trim components, windows | Injection molding, extrusion, thermoforming |
| Construction | Daylighting panels, skylights, noise barriers, safety glazing alternatives | Extrusion, thermoforming, lamination |
| Medical | Housings for hemodialyzers, pharmaceutical bottles, surgical instrument handles, respiratory masks | Injection molding, extrusion blow molding |
| Packaging | Reusable water bottles, food containers, infant feeding bottles (restricted in some countries) | Injection molding, extrusion blow molding |
| Optics | Ophthalmic lenses, camera lenses, laser printer components, optical sensor windows | Injection molding, precision injection molding, surface coating (e.g., anti-reflective) |
| Safety & Protection | Bullet-resistant glazing (multi-layer laminates), law enforcement face shields, industrial safety goggles, helmet visors | Multilayer coextrusion, lamination, vacuum deposition |
Manufacturing Quality Control of Polycarbonate
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance and Color | Visual Inspection, Colorimeter Method | Assess color uniformity and detect defects such as impurities, bubbles, or black spots using visual inspection or a colorimeter (e.g., CIE Lab system). |
| Density | Density Gradient Column Method, Liquid Float/Sink Method | Place the sample in a liquid with a known density gradient; determine its density based on its suspension position to evaluate material purity or batch consistency. |
| Melt Flow Index (MFI) | Melt Flow Rate Instrument Method (ASTM D1238) | Measure the mass of molten PC extruded through a standard die within a specified time under standard temperature (typically 300°C) and load, to assess flowability. |
| Mechanical Properties | Tensile Test, Flexural Test, Impact Test | Use a universal testing machine for tensile/flexural strength testing; perform cantilever or simply supported beam impact tests to determine impact resistance (e.g., ISO 179). |
| Thermal Properties | Differential Scanning Calorimetry (DSC), Heat Deflection Temperature (HDT) | DSC measures the glass transition temperature (Tg); HDT determines the temperature at which the material begins to deform under a specified load, evaluating heat resistance. |
| Transmittance and Haze | Spectrophotometer Method (ASTM D1003) | Use a UV-Vis spectrophotometer to measure the percentage of visible light transmitted through the material and the proportion of scattered light, evaluating transparency. |
| Yellowing Index (YI) | Colorimeter or Spectrophotometer Method | Measure the degree of yellowing before and after aging to evaluate weatherability and antioxidant performance. |
| Residual Stress | Polarized Light Microscopy, Solvent Immersion Method | Observe internal stress distribution via birefringence under polarized light microscopy; or assess stress levels by observing whether cracking occurs after solvent immersion. |
| Hydrolytic Stability | High-Temperature High-Humidity Aging Test | Expose samples to high-temperature, high-humidity conditions (e.g., 85°C/85% RH) for a specified duration and monitor changes in mechanical properties or surface degradation. |
| Volatile Content and Moisture Content | Oven Weight Loss Method, Karl Fischer Moisture Determination | Oven method measures total volatile content; Karl Fischer method precisely determines trace moisture content to prevent bubble formation or degradation during processing. |
| Chemical Composition Analysis | Fourier Transform Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR) | FTIR identifies functional groups and impurities; NMR provides precise analysis of molecular structure and monomer composition. |
| Chemical Resistance | Chemical Exposure Test | Expose samples to acids, bases, oils, and other chemicals, then observe changes in appearance, mass loss, or reduction in mechanical properties. |
Technical Specifications of Polycarbonate
| Test Item | Specification |
|---|---|
| Appearance | White to off-white granular solid |
| Purity | >=98.5% |
| Melting Point | 220–230°C |
| Water Content (KF) | <=0.3% |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Residue on Ignition | <=0.1% |
| Color (APHA/Pt-Co) | <=30 |
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 Polycarbonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Polycarbonate
Industrial Polycarbonate 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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