© 2026 Anhui Liwei Chemical Co., Limited,
All Right Reserved
|
HS Code |
686784 |
| Chemicalformula | C2H3Cl (repeating unit) |
| Appearance | White or off-white solid granules or powder |
| Density | 1.3–1.45 g/cm³ |
| Meltingpoint | 75–105°C (compound-dependent) |
| Tensilestrength | 30–55 MPa |
| Elongationatbreak | 10–400% |
| Hardness | Shore A 60–100 or Shore D 40–90 |
| Thermalconductivity | 0.14–0.25 W/m·K |
| Waterabsorption | <0.5% |
| Flammability | Self-extinguishing |
| Color | Varies; can be transparent, opaque, or colored |
| Electricalresistivity | 10^12–10^16 Ω·cm |
| Glasstransitiontemperature | 72–80°C |
As an accredited Polyvinyl Chloride Compounds factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White or colored polyethylene bags containing 25 kilograms of Polyvinyl Chloride Compounds, sealed and labeled with product details and safety information. |
| Container Loading (20′ FCL) | 20′ FCL for Polyvinyl Chloride Compounds: Typically loads 16–17 metric tons, packed in 25 kg bags, palletized or non-palletized. |
| Shipping | Polyvinyl Chloride (PVC) Compounds are shipped in sealed bags, drums, or bulk containers to prevent contamination and moisture exposure. Packaging complies with international transport regulations. The product should be clearly labeled and transported in dry, well-ventilated vehicles, away from strong oxidizers and extreme temperatures to ensure product integrity and safety. |
| Storage | Polyvinyl Chloride (PVC) compounds should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong acids or oxidizers. Containers should be tightly sealed to prevent contamination and moisture ingress. Proper labeling and stacking are essential to avoid damage. Follow all relevant safety and regulatory guidelines for storage and handling. |
| Shelf Life | Polyvinyl Chloride (PVC) compounds typically have a shelf life of 1-2 years if stored in cool, dry, and sealed conditions. |
Competitive Polyvinyl Chloride Compounds prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call 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
Flexible payment, competitive price, premium service - Inquire now!
Working on the factory floor for years, we have seen how polyvinyl chloride compounds shape the backbone of industries ranging from wire insulation to everyday medical equipment. Our team handles everything from the dosing of stabilizers to the final pelletizing, watching as base PVC resin transforms under our hands into a range of compounds. Each batch takes on a life of its own, with the intricate balance of plasticizers, impact modifiers, fillers, and pigments making all the difference in flexibility or sturdiness. Models like our pliable clear vinyl for IV tubing live alongside rigid, weather-resistant formulations for outdoor cable insulation. In our view, these choices reflect not just chemical theory but the common-sense needs of customers who rely on tough, repeatable results.
Years in this industry drive home how many roads PVC compounds open up. In-house, we talk a lot about choice—using phthalate and non-phthalate plasticizers, formulating with or without heavy metals, balancing cost and performance for each client’s reality. Our compounded granules end up in garden hoses, automotive seals, electrical conduit, and sometimes the food packaging you handle at the store. For us, every bag shipped means production teams downstream can count on them to extrude smoothly, mold precisely, and print clearly.
PVC compounders face a daily test of consistency and flexibility, not just in physical properties but in the demands our customers throw our way. One day calls for medical grade, crystal-clear compound that must pass stringent biocompatibility checks. The next brings an order for fire-retardant, UV-stable insulation for solar panels, or even low-temperature impact grades for automotive weather-seals. No one compound covers every application, but we’ve found that tuning the formula gets much closer to real-world requirements.
What separates one compound from another? Practice tells us it’s often a hundred small decisions. Take wire and cable manufacturing: Specific melt flow, tensile strength, and insulation resistance must line up exactly with the customer’s extrusion line and application environment. Our team’s “cable white” compound, thickened with selected fillers, brings not just color uniformity, but improved electrical properties and UV resistance that really stand out in installed environments. For automotive parts, flexibility at low temperatures and resistance to oils become deal-breakers, and those requirements steer not only choice of PVC resin but also the entire recipe of modifiers and stabilizers.
Rubber-touch vinyl compounds, made possible with unique blends of elastomeric modifiers, help our partners mold consumer products that need both tactile comfort and lasting strength. By contrast, rigid grades—think window frames or external building profiles—demand high-impact resistance, dimensional stability, and reliable weathering. Our rigid blends draw on a different recipe—tin stabilizers, carefully measured fillers, impact modifiers—all designed to beat sunlight and storms. Throughout the years, we’ve seen the value of working directly with processing engineers and product designers, sharing our on-the-ground feedback so each compound really works where it matters.
The marketplace buzzes about innovation. On our side, progress looks like better dispersion of titanium dioxide for long-lasting white shades, low-migration plasticizers for food contacts, or halogen-free fire retardants for building interiors. Meeting strict standards (RoHS, REACH, FDA, UL) pushes our formulation labs to prove every change under the microscope before green-lighting new products for shipment. We regularly cross-test our flexible and rigid compounds alongside international benchmarks, week after week, year after year. Scraps and rejects in the plant are not just waste but reminders—if a batch gels unevenly or doesn’t meet impact standards, we track back through the extruder, the blending line, and even the raw resin batch.
Failure in the field carries real consequences: PVC compounds in a high-voltage cable must never embrittle under load, while medical grades cannot leach contaminants. Our approach blends old-school “hands-on” know-how with new tools, running simultaneous QC lines, cutting samples for tensile tests, elongation, flame spread, and thermal stability. None of these checks replace the value of speaking directly with our end users. Their daily operations, especially in mass production, keep us honest on what improvements actually matter.
PVC compounds land at the crossroads of durability, safety, processing ease, and cost effectiveness. Every day, plant managers looking to shave downtime ask for trouble-free granules that don’t clog feeders or cause surface defects. In medical device shops, rumors of contamination spark a full recall—so a reliable, food-grade formula is not just a request but a baseline for continued business. When we get compound questions, clients rarely ask about theoretical mechanical values. They ask whether the pellets handle smoothly, process evenly, and hold up against sun, heat, or oil.
True compounded PVC beats standard, unmodified resin by offering targeted property enhancements at scale. That means our proprietary flame-retardant compound not only resists ignition but also maintains flexibility, supporting cable makers who wind kilometers of insulation every shift. A client needing clarity and softness for packaging films expects both visual appeal and anti-migration assurance—traits that take tweaking at the molecular level, but make or break a product in the end market.
Factories that draw on our compounds run a wide spectrum, each with their own production quirks. A large-scale cable sheathing line wanting 24/7 output depends on a compound with consistent melt viscosity and low die buildup, so we blend internal lubricants and select stabilizers accordingly. In a medical devices plant, sterilization requirements restrict ingredient choices, and a single out-of-spec trace element can rule out an entire batch. Our medical grade compounds rely on years of tweaking, cutting out phthalate plasticizers and tin stabilizers to comply with severe standards, without sacrificing ease of welding or clarity.
Automotive parts makers demand impact resilience at minus twenty degrees, strong adhesion to metal inserts, and resistance to chemical splash. Here, we build up the formulation with specialty plasticizers and reinforcement packages developed over months of pilot runs. Customers who manufacture construction profiles weigh every formulation detail against cost, expecting not just exterior weathering endurance, but fast cycle times on extruders and minimal dusting in their plants. Real, reliable batching on our end gives them that edge, not just a commodity pellet.
Compliance never remains still. RoHS pulled lead-based stabilizers from the market practically overnight, and most major export buyers follow REACH registration to the letter. We cycle raw material sourcing and recipe adjustment in tandem with evolving standards, testing for heavy metals, extractables, and environmental footprint at every step. Clients on each continent face inspection, and every PVC compound batch leaves a data trail. Clear records and transparent tracing are daily routine for us, with our labs logging test results right against production orders. From chlorine content to volatile organics, we know what’s in every load.
Medical compounds face an even fiercer spotlight. Our high-purity flexible grades for IV and blood bag tubing avoid phthalates, minimize extractables, and hold true in gamma or ETO sterilization. Their clarity and softness require ultra-clean compounding rooms, medical-grade packaging, and certified traceability. We’ve seen first batches fail for surface haze or poor sealability, so every new production trial brings rigorous in-house and external tests. For compounds in direct food contact—like cling films or liners—migration and organoleptics matter as much as tensile or tear strength, and those tests extend for months in some cases.
Compared to other thermoplastics, compounded PVC covers an unusually wide map of properties. Polyethylene, for example, can’t offer the same inherent flame resistance or cost advantages, especially in cable or construction work. Polypropylene brings stiffness and chemical resistance, but rarely matches PVC’s soft touch or flexibility in removable hoses or transparent medical packaging. Our engineers see these limits first hand in head-to-head extrusion and molding runs.
Breathing life into PVC compounds means accepting both upsides and natural drawbacks. PVC on its own brings flame retardance and chemical durability, but doesn't match the clarity of polycarbonate or manage high temperatures like engineering thermoplastics. Where we come in: enhancing impact strength, clarity, processability, or chemical compatibility, depending on the use. Our flame-retardant formulations meet tough IEC cable tests that many standard plastics can’t match. Yet, every customer works with a budget, and PVC, when compounded right, sits comfortably between performance and price for most applications demanding tough, reliable plastics.
Environmental scrutiny never lets up, and rightfully so — this business depends on balancing safety, performance, and ecological footprint. In compounding, the debate around plasticizers and stabilizers runs deep. We moved away from lead long ago, and we keep tight control on all additives, tracking everything through to the end article. Over the years, suppliers came forward with alternatives, from DOTP to epoxidized oils and calcium zinc stabilizers. Every new choice takes trials on the line to confirm that cable sheathing, for example, doesn’t lose resilience, or that medical tubing transitions smoothly through welding and sterilization.
Out in the field, our clients ask about end-of-life impact and recycling. Here, compounded PVC presents unique opportunities. Granulated scrap from extrusion cuttings or off-spec runs feeds back into our process and, in cooperation with major customers, into downstream molded products. Cross-linked or highly filled PVC has fewer reuse options, but clean, single-grade scrap reprocesses efficiently. We're realistic—many applications require fresh material for hygiene and purity, especially in medical or food-grade lines. Yet, for window profiles, cable fillers, or underbody automotive parts, recycled content fits right in when handled with care.
No formulation solves every problem. Plant line speed, weather, resin lot, even regional differences in power supply can challenge the most rigid routine. Some years back, a humid summer batch caused surface defects on extruded film—daily troubleshooting nailed it down to a change in filler supplier and led us to modify the compounding temperature profile. Communication between production and R&D draws the shortest line to the right fix. When a client’s extrusion dies fouled on our new low-smoke, halogen-free grade, back-and-forth testing tracked the trouble to unexpected lubricity changes. We adjusted, retested, and updated our formula—all within the month.
A manufacturer’s obligation runs deeper than just making a specification sheet. Clients demand real-world results and, when necessary, a rapid fix. Our plant teams understand the urgency: downtime for our customers is lost money. We keep records that tell us which bag of titanium dioxide or which run of calcium carbonate contributed to a batch, so tracking a problem stays fast and effective. Feedback cycles stay tight, and each mistake ends up as an improved process in the next run.
Talking about “solutions” sometimes masks the real work needed. New designs in cable, medical devices, or automotive systems call for us to bring experience and a problem-solving attitude to the table. Whether the issue involves flame retardance, clarity, process timing, or environmental regulation, the answer usually unfolds on the line. Formulation draws from decades of accumulated fixes and insights: which stabilizers best resist yellowing during outdoor exposure, which plasticizers maintain softness under repeated flex, which pigments run true against sunlight or chemical fumes.
In manufacturing, every improvement counts, but rarely comes easy. Suppliers and users alike expect traceability, clear documentation, and real accountability. We value long-term partnerships with both raw material suppliers and end users, because open information always beats marketing gloss.
For us, polyvinyl chloride compounds reflect not just chemistry, but a steady process honed by experience and direct line-to-product accountability. Our formulations grow and evolve with every failed trial, every successful customer launch, and every returned drum that lands on our troubleshooting table. Working with PVC means meeting challenges head-on—from regulatory switches, to developing softer, more durable, or more environmentally responsible products with each production cycle. Success looks like fewer complaints, higher output per hour, and confident customers ready to grow along with us. As the needs of carmakers, builders, electronics manufacturers, and healthcare providers get more sophisticated, so do the PVC compounds we create.
Each day, our aim stays fixed: deliver compounds that really perform, batch after batch, while pushing for higher quality and greater confidence in every market we serve. Polyvinyl chloride compounds, in all their diversity, remain a central pillar of our company’s expertise and continual learning. Through close collaboration with customers and the discipline of daily manufacturing reality checks, we build from the resin up, product by product, challenge by challenge.
