Products

Polyvinyl Chloride (PVC)

    • Product Name: Polyvinyl Chloride (PVC)
    • Chemical Name (IUPAC): Poly(1-chloroethene)
    • CAS No.: 9002-86-2
    • Chemical Formula: (C2H3Cl)n
    • Form/Physical State: Solid
    • Factroy Site: Qinghai Salt Lake Industry Co., Ltd., 28 huanghe road, Golmud City, Qinghai Province
    • Price Inquiry: sales3@liwei-chem.com
    • Manufacturer: Qinghai Salt Lake Industry Co., Ltd
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    Specifications

    HS Code

    350777

    Chemical Formula C2H3Cl
    Molar Mass 62.5 g/mol
    Appearance white, brittle solid
    Density 1.38 g/cm³
    Melting Point 100–260 °C (depends on additives)
    Thermal Conductivity 0.19 W/m·K
    Tensile Strength 40–60 MPa
    Water Absorption 0.04–0.4% (24 h at 23°C)
    Flammability Self-extinguishing
    Electrical Resistivity 10^15 Ω·cm
    Glass Transition Temperature 82 °C
    Hardness 80–90 Shore D

    As an accredited Polyvinyl Chloride (PVC) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 25 kg polyvinyl chloride (PVC) is typically packed in sturdy, moisture-proof, white or beige woven plastic bags, clearly labeled for identification.
    Container Loading (20′ FCL) Polyvinyl Chloride (PVC) is loaded in 20′ FCL containers, typically in 25 kg bags or jumbo bags, maximizing safe cargo weight.
    Shipping Polyvinyl Chloride (PVC) is shipped as solid pellets, powder, or resin in moisture-proof bags, drums, or bulk containers. It should be kept dry and away from heat, flames, and incompatible chemicals. Proper labeling and adherence to local, national, and international shipping regulations are required for safe transport.
    Storage Polyvinyl Chloride (PVC) should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and strong oxidizing agents. Keep the material in closed containers or bags to prevent contamination and moisture absorption. Ensure the storage area is free of ignition sources, and follow all applicable safety regulations for storing thermoplastic materials.
    Shelf Life Polyvinyl Chloride (PVC) typically has an indefinite shelf life if stored properly, away from heat, sunlight, and moisture.
    Application of Polyvinyl Chloride (PVC)

    Flexibility: Polyvinyl Chloride (PVC) with high plasticizer content is used in cable insulation, where enhanced flexibility ensures ease of installation and protection against mechanical stress.

    Purity: Polyvinyl Chloride (PVC) with purity above 99% is used in medical tubing, where biocompatibility and safety for patient contact are critical.

    Molecular weight: Polyvinyl Chloride (PVC) with moderate molecular weight is used in window profiles, where improved dimensional stability and mechanical strength are required.

    Thermal stability: Polyvinyl Chloride (PVC) with thermal stability up to 100°C is used in hot water pipes, where resistance to deformation and chemical degradation ensures long service life.

    Particle size: Polyvinyl Chloride (PVC) powder with fine particle size is used in coatings, where consistent dispersion provides uniform film formation and surface smoothness.

    Viscosity grade: Polyvinyl Chloride (PVC) with high viscosity grade is used in flooring sheets, where increased wear resistance and impact strength support heavy-duty applications.

    UV resistance: Polyvinyl Chloride (PVC) with UV stabilizers is used in outdoor signage, where color retention and surface integrity are maintained under sunlight exposure.

    Fire retardancy: Polyvinyl Chloride (PVC) formulated with flame retardants is used in electrical conduit, where reduced flammability enhances building fire safety compliance.

    Density: Polyvinyl Chloride (PVC) with density around 1.4 g/cm³ is used in automotive trim components, where optimal weight and structural rigidity contribute to fuel efficiency and durability.

    Transparency: Polyvinyl Chloride (PVC) with high optical clarity is used in pharmaceutical blister packaging, where visibility of the product and tamper evidence are essential.

    Free Quote

    Competitive Polyvinyl Chloride (PVC) prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Introducing Our Polyvinyl Chloride (PVC): Reliable, Rugged, and Ready for Your Line

    At our chemical plant, we've worked with Polyvinyl Chloride for decades. We’ve seen factories, contractors, and creative customers push the limits of what this polymer can do. Over time, we’ve made adjustments driven by user needs—from changing up particle size for better flow in mixers to tuning plasticizer compatibility. Before shipment, our teams check every batch to make sure it meets the properties we promise. Practical experience taught us: if a product can’t handle what a customer’s putting it through, it doesn’t belong in our warehouse or your plant.

    The PVC We Make: Grades and Why They Matter

    We manufacture suspension-grade and emulsion-grade PVC. Suspension-grade PVC—what most cable jacket or pipe factories run in their lines—offers strong mechanical properties and ease in handling. Customers using it for large-diameter pipes, window frames, or rigid extrusions appreciate how predictable the melt is, which keeps machinery running without clogging dies.

    Emulsion-grade, finer in particle size, finds its role in everything from synthetic leather to coatings. Our emulsion PVC checks off the right boxes for manufacturers who care about surface finish. A smooth result depends on both particle distribution and how the powder disperses in the resin pot, so we keep a sharp eye on our internal sieves and blending protocols.

    Specs That Mean Something on the Factory Floor

    With every pallet, you’ll see a label showing K-value, bulk density, and impurity profile. For pipe makers and profile extruders, a K-value between 65 and 68 usually lines up with high impact strength and thermal stability—enough to take on freezing temperatures during storage and keep shape over years in the field. For film producers, a K-value closer to 70 brings the flex and clarity their market demands. Our bulk density targets make sure you’re not fighting bridging issues in your automatic feed, so downtime stays low. Moisture control isn’t just a technical point for us. Excess trapped water steam-blasts during extrusion, causing ‘shark skin’ or surface bubbles. Our drying process uses slow, low-temperature stages that keep residual water under 0.2%.

    Everyday Use: From Piping Runs to Insulation on Your Jobsite

    PVC lines city drinking water systems, keeps electrical wires safe, and forms the panels and window frames for homes everywhere. We know our product ends up in different shapes: thick pipes, thin films, foamed construction panels, or coated wire spools. Every application means different demands. A pipe exposed to the sun needs UV stabilizers. A cable insulation line needs low gel count to ensure electrical reliability. Our R&D teams study downstream compounding recipes to make sure no ingredient in our formula will trigger processing headaches—like chemical cross-reactions that gum up extruders or cause yellowing after months of sunlight.

    Customers have told us that problems on their lines often come from unpredictable resin. We trace every lot back to its original reactor, monitor process temperature, and test particle shape. Sharp corners and irregularities turn up during pigment or stabilizer blending. So, we’ve optimized agitation speeds and suspension fluid dynamics to make rounder, more uniform grains. That means our customers spend less time cleaning out hoppers or running rework.

    How Our PVC Stands Out from the Field

    You’ll find a lot of PVC in the market—sometimes even labeled with the same technical grades or K-values as ours. We’ve noticed, though, that product consistency can swing wildly from batch to batch with other suppliers. Customers who switched to us from overseas merchants saw fewer die changes during extrusion and steadier product gloss month after month. With our back-end analytics, we log every incident where regrind was needed, and we feed that back to our operators. Our plant runs round-the-clock on a closed-loop control system—no hand-written totals, no guesswork. When one of our buyers called last winter with a batch showing unexpected haze, we traced it to a change in feedstock purity from an upstream supplier, swapped it out, and improved detection protocols on our incoming stream.

    We inspect for a lot more than just K-value or particle size. Dust or off-color specks might seem minor, but over hundreds of meters of film, they mean rejected rolls. We take those customer complaints seriously—making color checks and particle shape imaging a standard, not an exception.

    PVC Versus Other Plastics: What the Data Shows

    Polymers like polyethylene, polypropylene, and ABS all compete with PVC in different markets. We’ve worked with plants that swapped materials, only to return to PVC after running into chemical or process barriers. For fluid-handling pipes, PVC’s chlorine content makes it more resistant to acids and alkalis compared to polyolefins. And at elevated temperatures, PVC’s shape holds up better than most commodity plastics. Electric cable manufacturers tell us that PVC keeps flexibility from cold weather through summer heat, which would be tough to match with rigid polyethylenes.

    Some customers consider switching due to concerns about additives or recycling. If you depend on transparent films, you might look at PET. But PVC lets converters use thermal stabilizers to tailor melt flow. PET and similar materials demand much tighter drying protocols, or hydrolysis ruins your batch. Our teams coach customers through handling stabilizers and process aids, drawing on field experience from big window frame extrusion lines to wire coating shops.

    Cost and versatility often tip the scales back in favor of PVC. We source local feedstocks to dampen the volatility of global prices. That’s allowed us to offer fixed-volume contracts that help our customers plan years in advance. In rigid form, PVC pipes don’t crack under load the way certain competitive materials do. And in soft, flexible grades, it delivers the tactile feel medical and household customers want, at a fraction of the cost of other flexible resins.

    Environmental Safety and Handling Insights

    PVC has faced criticism regarding additives and end-of-life management. It pays to handle all polymers with sharp eyes on safety and environmental data. We maintain full compliance with national and international regulatory guidelines—REACH, RoHS, and others. We know which stabilizers and plasticizers are under restriction and keep clear of problem ingredients. Some customers ask about phthalates; we offer phthalate-free lines for wire, cable, and toy industries. Waste streams from our process move into controlled post-processing tanks. None of our discharge ends up untreated downstream, and we routinely audit our own records for compliance.

    For recyclers, PVC’s chlorine content can cause issues if mixed with other heat-sensitive plastics. We structure our product to work with closed-loop recycling systems, and have successfully piloted reclaimed PVC programs for select clients. We regularly discuss scrap handling and collection with compounding partners. Some of our customers use our resin in multi-layer structures where PVC’s properties bring chemical or UV resistance. We help those customers figure out compatibility and separation for end-of-life recycling.

    Common Workflow Issues and Field Solutions

    Running a plant that processes hundreds of tons of PVC every month, we’re the first to know what can go wrong when the chemistry isn’t just right. Too much residual VCM (vinyl chloride monomer) left in the resin can exceed certain market legal limits. We monitor residual monomer constantly with gas chromatography, and any batch above threshold undergoes further stripping or is scrapped. Our reactors use optimized pressure and temperature curves, minimizing off-spec material in the first place.

    Customers report static, clumping, or bridging issues with some PVCs. We developed grain shapes and anti-caking agent options that cut these concerns. Poor fusion in extrusions, or gels, trace back to particle size variation and inadvertent cross-linking during processing. We keep granule uniformity tight through in-line sampling and laser imaging, which helps cable and profile extruders hit cleaner output with less scrap.

    PVC can pick up dust during shipping, which might show up as haze or black specks in final products. We adapted our packaging from single-layer bags to multi-wall designs with in-line dust removal. This change came after one of our largest pipe customers returned several pallets due to black specks that led to rejects in a new building development. By tightening packaging, and working with shipping partners who understand chemical handling, return rates dropped. These details matter for customers whose plants run twenty-four hours and can’t afford to stop to clear hopper jams.

    New Developments: Tailoring to Customer Needs

    Customers keep us on our toes. We listen for every complaint, unexpected color shift, abnormal gel count, or batch that just doesn’t flow like the last one. In recent years, we’ve seen builders request more lead-free formulations to meet stricter emigrant regulations. We source stabilizers that respect market requirements and test them at scale. For the wire and cable sector, we’ve rolled out low-smoke, halogen-free compounds suited to public buildings or transit systems.

    Making a switch in raw materials isn’t a decision you rush. We routinely host plant trials at customer facilities, sending our own engineers to monitor extrusion speeds, color stability, and downstream compounding. Feedback from those visits changes our production specifications. In one example, a window profile customer flagged a gloss drop-off after UV exposure. Our team worked with their pigment suppliers, adjusted our blend’s compatibility with their additives, and restored the required surface finish. With every challenge, we’re reminded that real-world testing—inside real customer facilities—beats any lab simulation.

    Why Rigorous Control Means Reliable Product

    In PVC production, consistency matters far more than marketing claims. Our own processes demand high-quality feedstock and strict environment control. Variations in temperature, pressure, or delivery rates change product granulation in subtle ways—sometimes undetectable without lab analysis but obvious during high-speed extrusion.

    Our operators bring years on batch lines and extrusion set-ups, and they know what a good product looks and feels like. We maintain open lines with our technical and logistics teams, fine-tuning every run based on real-world feedback—the way PVC should be made. Customers who run night shifts appreciate that every bag from our warehouse checks off the same moisture and flow standards as the first batch, no matter what season it ships. This attention cuts scrapped product and downtime, keeping everyone’s bottom line healthy. We believe that transparency with our production numbers, and owning up to the occasional hiccup, builds more trust than paper-perfect spec sheets ever could.

    PVC’s Advantages by the Numbers

    Data from the utility and construction sectors shows PVC products outlasting alternative polymers in field deployments—especially for pipe, siding, and windows. Reports from municipalities track lower replacement rates on PVC sewer lines compared to cast iron or polyolefins. Insurance companies adopt PVC conduit for electrical installations due to its track record on flame resistance and insulation over time. Hospitals and food-packaging plants select PVC-based wall panels and ceiling tiles for their cleaning resistance and sanitizability. We don’t just take industry data at its word; we field questions, visit installations, and run our own weathering tests.

    Additive producers routinely test compatibility with our resin and share their lab analyses. We review mechanical properties, migratory behavior of stabilizers, and heat distortion numbers—because durability over time is a function of both proper compounding and a stable resin backbone. If something doesn’t perform as marketed in a compounding lab or jobsite, we investigate the cause, right down to a reactor batch audit.

    Working with Our Customers: Practical Support, Not Just Shipping

    Customers come to us with bottlenecks and sometimes tough stories—lines stopping mid-run, off-color mixes, or troubleshooters who can’t nail down a cause for out-of-spec finished products. We don’t read off a script or send back boilerplate PDFs. We pull up data from our own batch records and, if needed, join remote calls to view issue samples. We publish troubleshooting guides for common extrusion problems, and we support our buyers through transitions between grades or new equipment.

    Transparent production notes and full traceability streamline problem-solving. One customer shared how a change in pellet consistency from an overseas supplier caused costly delays for their profile line. They switched to our material after an on-site plant audit. With every purchase, we send up-to-date compounding recommendations for specific product series, letting our buyers plan with confidence. It’s an ongoing conversation, not a one-shot sale.

    What Keeps Us Focused: Making Products That Work Where It Matters

    The world relies on PVC for a reason: long life, chemical resistance, and unmatched versatility. But over many years of producing resin for the full spectrum of industry—construction, wires and cables, medical, automotive—we’ve learned it’s not the material alone that matters. Customers value honest communication, deep process knowledge, and commitment to improvement. We keep this front of mind in our plant and in every shipment that leaves our doors.

    If you’re building something meant to last, installing infrastructure that supports families and businesses, or looking for a clean finish on your next product run, you deserve to know exactly what you’re getting—and how to get the best from it. From hands-on plant visits to open process improvements, we stand by our PVC because it’s directly shaped by the people who use it, every shift, every day.