|
HS Code |
637183 |
| Product Name | Sinopec Polyvinyl Alcohol 098-75 |
| Manufacturer | Sinopec |
| Appearance | White granules or powder |
| Molecular Weight | Approximately 78,000 ± 2,000 |
| Degree Of Hydrolysis | 98.0% - 99.0% |
| Viscosity | 68-80 mPa·s (4% solution, 20°C) |
| Purity | ≥99.0% |
| Ash Content | ≤0.5% |
| Ph Value | 5.0 - 7.0 (4% solution) |
| Moisture Content | ≤5.0% |
| Solubility | Soluble in water, insoluble in organic solvents |
As an accredited Sinopec Polyvinyl Alcohol 098-75 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Sinopec Polyvinyl Alcohol 098-75 is packaged in a white 25 kg woven plastic bag, featuring blue and red printed labeling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Sinopec Polyvinyl Alcohol 098-75: 18 metric tons packed in 25kg bags, secured on pallets. |
| Shipping | Sinopec Polyvinyl Alcohol 098-75 is shipped in moisture-proof, sealed bags typically weighing 25 kg each. Bags are stacked on pallets, shrink-wrapped for stability, and labeled with product and safety information. During transport, packages should be kept dry and away from direct sunlight to maintain product integrity. |
| Storage | Sinopec Polyvinyl Alcohol 098-75 should be stored in a cool, dry, and well-ventilated area, away from moisture, direct sunlight, and sources of ignition. Keep the product in tightly sealed, original packaging to prevent contamination. Avoid contact with strong oxidizing agents and store at room temperature. Proper storage ensures product quality and safety during handling and use. |
| Shelf Life | Sinopec Polyvinyl Alcohol 098-75 has a shelf life of 12 months when stored in a cool, dry, and ventilated environment. |
Competitive Sinopec Polyvinyl Alcohol 098-75 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@ascent-chem.com
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As a long-standing chemical manufacturer, we've seen countless trends come and go in the raw materials sector. One thing never changes—reliability speaks louder than hype. With decades of hands-on experience, our teams in production, quality control, and logistics all know one truth: any batch of polyvinyl alcohol leaving our floors needs to guarantee consistency in application, not just chemistry on paper. Sinopec Polyvinyl Alcohol 098-75 sits in that sweet spot between practical performance and controlled molecular engineering. Our operations streamline every stage, from polymerization to final packaging, to ensure that customers get exactly what they expect—from the viscosity right down to the moisture content.
The product name 098-75 refers to a polyvinyl alcohol grade designed after listening closely to many industry users—everyone from paper manufacturers to textile processors. During our years synthesizing polyvinyl alcohols, we found that viscosity and hydrolysis make the biggest difference in how a product performs at scale. The 098-75 specification reflects this feedback: it features a degree of polymerization in the mid-to-high range, giving it strength and reliable film properties. Our batch control keeps viscosity around 70 to 80 mPa·s—right where glue, paper, and emulsion manufacturers see the least variability in their mixers and reactors. Customers tell us this predictability in viscosity saves time and trouble at every processing stage.
Many PVA users overlook the importance of hydrolysis until problems show up downstream. We’ve worked with enough customers to know that a partially hydrolyzed product like 098-75 strikes the best balance for water solubility and strength. Higher hydrolysis delivers better film toughness and water resistance, but go too far, and end-users complain about poor solubility or gelling. With 098-75, Saponification runs around 98%, supporting a broad range of applications without surprises during dissolution. In our production line, tighter hydrolysis control prevents surface foam and reduces variability, especially in textile sizing and adhesive blending. Years of experience in tuning the process allow us to minimize off-spec batches—delivering peace of mind for both small converters and large integrators.
Good manufacturing keeps a steady hand on details such as appearance, particle size, and impurity content. At our facilities, every lot of 098-75 is filtered for uniform granule size, supporting both manual and automated handling. No stray clumps or excessive dust make it into the final bags. We keep moisture levels under tight supervision: not too high, avoiding storage issues, and never too dry that it frustrates mixing with water. By working closely with production line staff, we know these details help mixing time, dissolution rate, and overall plant cleanliness. We never treat specification sheets as paperwork—their importance shows up every time a customer reports a trouble-free batch or a line that runs without stoppages.
Over the years, we have supported manufacturers covering a wide spectrum—adhesive plants, paper mills, textile dye houses, and building material suppliers. Each has their own way of working, yet all look for the same outcome: predictable behavior batch-after-batch. In adhesives, 098-75 delivers a clean, stable solution, minimizing foam and haze. Paper makers run our PVA for surface sizing because it holds pigment better and resists curl, especially in specialty papers. Textile processors depend on it for warp sizing, seeing fewer broken ends and cleaner weaving. We often see our product outperform lower cost, unbranded alternatives: less downtime on machinery, fewer rejected rolls, and fewer customer claims downstream. Longevity in this industry has taught us that a few percent savings on raw materials is easily lost if equipment suffers or rework increases.
Compared to lower-grade or off-brand PVA, Sinopec 098-75 delivers transparency, not only in its physical solution but also across paperwork and technical support. The production process leaves no surprises—no foreign odor, no yellow tinge, no fines that clog screens. In practice, the main differences lie in three areas: viscosity variation, impurity control, and reliability during ramp-up or shutdown. Our batches avoid unwanted plasticizers and additives, so end products pass regional and international testing without a hitch. This keeps downstream customers, especially exporters, on the right side of label laws and chemical registration requirements. Continuous feedback from our partners, both local and overseas, allows us to tighten standards over time.
Customers regularly call our technical team, often about unexpected gel formation or incomplete dissolution from other suppliers' PVA. With 098-75, consistently tight ranges in molecular weight and particle size put a stop to these conversations. Our customers cut mixing times and see fewer lumps. In adhesives, this means more consistent flow and spread, reducing trimming or cleanup after application. In textile sizing, fewer filters get clogged, and production runs longer without unscheduled stops. Our R&D staff stand ready to consult directly—if a facility faces real-world problems, our field engineers visit the plant and work alongside your staff to identify the root cause instead of offering phone advice or generic recommendations.
Traceability has moved to the foreground for buyers and authorities alike. Every ton of 098-75 comes with a full lot history, reaching back through raw material batch numbers, production dates, and even shift logs. Our own team holds each batch sample for over a year, allowing side-by-side re-tests if a customer has questions down the line. This traceability is not about box-ticking—it builds real trust in the product, especially for customers at the receiving end of import audits or sustainability reviews. Over years in the industry, we've learned that no document, no matter how well written, replaces the confidence bred by a pattern of on-time, correct shipments that can be traced from plant to dock to customer doorstep.
While meeting today’s specifications matters, we're conscious that customers are under growing pressure to run cleaner and report on their own supply chains. Our production lines use closed system polymerization with solvent recovery, cutting down emissions. By working upstream with raw material suppliers, we keep impurity levels in check and stay ahead of regulatory changes. Any waste generated—offcuts, filter residues—is documented, tracked, and treated according to local and international environmental rules. We regularly open our doors to auditors and client representatives. Their feedback doesn’t just go on paper; it drives how we update both process and product, supporting industry trends without disrupting customer operations.
Years of supplying polyvinyl alcohol have shown us the little adjustments that make a difference on customer lines. We encourage new users to dissolve 098-75 using water temperature in the 80°C range for optimum dissolution speed, employing steady stirring rather than aggressive blending. This avoids air entrapment which can lead to bubbles in films or coatings. A screened feeder improves granule dispersal in continuous tanks, while batch processors see the best results from gradual addition—preventing surface caking and excessive dust. In larger plants with recirculation systems, keeping an eye on filter mesh size can extend downtime intervals by several days. We willingly share these insights, developed from our own R&D work and repeated field support. Overwhelmingly, the factories adopting these small process tweaks report both yield improvements and smoother workflow.
Some of our longest-term clients were once skeptics, used to switching grades frequently based on price alone. Over time, we invited technical managers to observe our production process. The understanding built in these interactions helped shape refinements in viscosity range, dust suppression, and even packaging strength. These improvements, rarely visible in a product catalog, pay off in the form of fewer stuck bags, smoother dosing, and less mess in storage rooms. Longstanding feedback from users with automated dosing has led to finer control of particle size distribution. Large paper and textile accounts, particular about sizing reproducibility, see less variation between shipments even over years.
Though we have upgraded our packaging several times based on customer requests, simplicity rules—bags are strong enough for transport yet open smoothly for automated feeders or manual handling. Our packaging is moisture-resistant and keeps contents dry in a variety of storage environments, from humid coastal regions to arid locations. We never cut corners inside the plant or on the road—our logistics teams collaborate with shippers and warehouse operators to maintain product integrity from outgoing shipment to goods receipt at the customer's dock.
Not all polyvinyl alcohol grades serve the same function. Lower- or higher-viscosity types offer specialized properties, but 098-75 remains the workhorse among our catalog for general industry use. Many alternative grades chase lower prices by relaxing impurity control or extending polymerization time. In our experience, such shortcuts surface as problems long after delivery—unpredictable viscosity shifts, problems with end-product clarity, or compliance issues during customer audits. By controlling both polymerization and finishing conditions, we sidestep these headaches and keep feedback lines open. We do not rely on third-party intermediaries who may swap lots or substitute different origins; our direct supply chain policies keep the origin and quality clear from start to finish.
Operating globally means understanding regional and international compliance requirements. We invest in regular monitoring of regulations on food contact, environmental safety, and industrial hazard management. Our technical dossiers for 098-75 are kept up to date, serving both in-house engineers and customers needing validation for audits or exports. When unexpected rule changes come along, our staff notify and assist every affected client, offering replacement grades only with supporting documentation. In the chemical industry, nothing derails operations faster than unplanned regulatory non-compliance. We work on prevention, not reaction.
Automated systems help, but experience counts most. We employ senior staff across lab, production, and technical service lines; many have witnessed the changing landscape of global supply, learned from past shortages, and know where mistakes often creep in. Our sales and technical teams do more than provide certificates—they connect with customers’ engineers, production supervisors, and procurement leads for simple, honest conversations about root-cause analysis and plant optimization. This approach ensures Sinopec 098-75 fits real-world requirements, not just what looks good in a lab.
Our customers do not stand still, and neither do we. As users push into new fields—such as biodegradable films, specialty fiber spinning, or eco-friendly adhesives—our teams work alongside them, testing raw materials, revisiting process flow, and supporting pilot trials. Adaptation requires open channels and flexibility. The investment in pilot testing and direct feedback accelerates both process scaling and final success rates.
Global disruptions, shipping slowdowns, and material shortages all pressure chemical buyers. Operating our own manufacturing assets lets us buffer some of these risks. At the height of disruptions, we worked double shifts and reallocated raw material sources to keep batch integrity, rather than sending customers substitute grades or re-sourced blends. Having direct control at every step provided not only supply assurance but reduced last-minute headaches for our partners. By communicating openly about constraints and collaborating on buffer stock strategies, we have helped both large and small customers keep their plants running.
Sales spikes and new market entrants are common in the chemical industry, but reliability builds loyal customers and long-term growth. Polyvinyl alcohol 098-75 represents more than a collection of technical values—it’s the result of continuous attention, real field experience, and an open-door policy to feedback and improvement. The manufacturing experience embedded in every bag sets the true difference for customers who value process reliability, regulatory compliance, and hands-on technical support.
While websites and datasheets can answer common questions, there’s no substitute for direct discussions. Our staff encourage inquiries about application specifics, comparison with other grades, or unique processing challenges. Whether you are just looking to evaluate a new supplier or need in-depth technical consultation, our technicians stand ready to talk through your requirements in plain language, offering honest insights based on real industry practice.
