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HS Code |
163911 |
| Product Name | Witcobond 290H Waterborne Polyurethane Resin |
| Type | Aqueous polyurethane dispersion |
| Appearance | Milky white liquid |
| Solids Content | 36% ± 1% |
| Viscosity | 100-500 cP at 25°C |
| Ph | 7.5-9.0 |
| Density | 1.05 g/cm³ |
| Film Hardness | Medium hard |
| Ionic Character | Anionic |
| Coalescing Agent Content | None |
| Volatile Organic Content | < 25 g/L |
| Recommended Storage Temperature | 5-35°C |
| Freeze Thaw Stability | Stable for minimum 3 cycles |
| Application Methods | Spray, roll, brush |
| Primary Applications | Textiles, coatings, adhesives |
As an accredited Witcobond 290H Waterborne Polyurethane Resin factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Witcobond 290H Waterborne Polyurethane Resin is packaged in a sturdy 200 kg blue plastic drum with secure, sealed lid. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Witcobond 290H Waterborne Polyurethane Resin typically loads about 16-18 metric tons per 20-foot container. |
| Shipping | Witcobond 290H Waterborne Polyurethane Resin is shipped in secure, sealed containers to prevent leaks and contamination. It should be stored and transported upright in a cool, dry, and well-ventilated area, away from extreme temperatures and direct sunlight. Follow all relevant local, national, and international shipping regulations for chemicals. |
| Storage | Witcobond 290H Waterborne Polyurethane Resin should be stored in tightly sealed containers at temperatures between 5°C and 35°C (41°F and 95°F). Keep it away from direct sunlight, freezing, heat sources, and incompatible materials. Ensure storage areas are well-ventilated and prevent contamination. For optimal stability, the product should be used within its designated shelf life as indicated by the manufacturer. |
| Shelf Life | Witcobond 290H Waterborne Polyurethane Resin typically has a shelf life of 12 months when stored in unopened containers at recommended conditions. |
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Solids Content: Witcobond 290H Waterborne Polyurethane Resin with a 40% solids content is used in synthetic leather coatings, where it provides enhanced abrasion resistance and durability. Viscosity: Witcobond 290H Waterborne Polyurethane Resin with a viscosity of 80–250 mPa·s is used in flexible packaging adhesives, where it enables easy processing and strong substrate bonding. Particle Size: Witcobond 290H Waterborne Polyurethane Resin with an average particle size of 90 nm is used in textile finishing applications, where it imparts a smooth hand feel and uniform film formation. Film Hardness: Witcobond 290H Waterborne Polyurethane Resin with a pencil hardness of 2H is used in wood coating formulations, where it achieves superior scratch resistance and long-lasting surface protection. Thermal Stability: Witcobond 290H Waterborne Polyurethane Resin stable up to 120°C is used in automotive interior coatings, where it maintains performance under elevated temperature conditions. Elongation at Break: Witcobond 290H Waterborne Polyurethane Resin with an elongation at break of 350% is used in flexible PVC coatings, where it enhances flexibility and prevents cracking. pH Stability: Witcobond 290H Waterborne Polyurethane Resin with a pH range of 7.0–9.0 is used in waterborne inks, where it ensures compatibility with various additives and pigments. Minimum Film Forming Temperature: Witcobond 290H Waterborne Polyurethane Resin with an MFFT of 3°C is used in low-temperature applied paints, where it enables proper film formation even in cool environments. Gloss Level: Witcobond 290H Waterborne Polyurethane Resin with high gloss potential is used in glossy paper coatings, where it delivers a brilliant finish and improved visual appeal. Tensile Strength: Witcobond 290H Waterborne Polyurethane Resin with a tensile strength of 18 MPa is used in industrial protective coatings, where it provides robust mechanical integrity and resistance to deformation. |
Competitive Witcobond 290H Waterborne Polyurethane Resin prices that fit your budget—flexible terms and customized quotes for every order.
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Life in a chemical manufacturing plant rarely pauses. There are practical challenges every day—batch consistency, time pressures on shipping, and customers who watch formulation performance like hawks. Over the years, our R&D team has worked side-by-side with large-scale finishers and coating producers to develop resins that handle real workloads. Witcobond 290H waterborne polyurethane stands as the result of countless feedback loops and thousands of pilot trials, not an arbitrary innovation or marketing push. It’s a result of concrete needs—especially among users wanting alternatives to solvent-borne systems without sacrificing toughness or flexibility.
Keeping up with tighter VOC regulations has changed all the rules. We once filled tanks with traditional solvent polyurethanes, and now face pressure to hit stricter emissions targets while retaining coating strength and clarity. In waterborne polyurethanes, the challenge sits not only with VOCs, but also in the film quality, drying behavior, and adhesion—those fine margins that spell the difference between a complaint and a repeat order. Witcobond 290H bridges that space, offering a true polyurethane backbone that outperforms acrylic blends and runs head-to-head with old-fashioned polyurethanes without the air-quality penalty.
Every plant manager in the coatings business understands how even minor surface flaws—orange peel, pinholes, or poor flow—trickle down through their own customers. Our engineers noticed early on that rough or unpredictable film development slowed down waterborne adoption. We approached the 290H project from the ground up, running tank trials under real shop-floor conditions. Even in hard water scenarios or less-than-perfect climate settings, 290H lays down a film with clarity and mechanical resilience. This resin avoids the gummy, tacky surfaces and poor block resistance that still plague competitors’ dispersions.
Witcobond 290H is a true water-dispersed polyurethane, not a hybrid or acrylic copolymer blend. In our reactors, a carefully balanced NCO to OH ratio drives polyurethane formation, yielding a linear, high-molecular-weight backbone entirely in water. End-users have reported steady pH values, dependable viscosity in the range required for consistent pump and spray work, and a fine micron-range dispersion. Our own QC labs regularly test for particle size control (generally in the submicron range), reliable solids content, and absence of free monomer residue—essentials for formulators who cannot afford surprises at the point of addition.
Unlike some resins carrying waterborne labels but cut with solvent, 290H achieves its low VOC content through genuinely water-based chemistry. Formulators see precise control. The clarity of 290H, a naturally translucent dispersion, enables pigmentation without muddying or over-thickening. Typical specification sheets highlight a toughness profile that translates directly into scuff resistance, flexibility, and durability on treated substrates.
This resin entered our product lineup in response to the headaches experienced by finishers in multiple sectors: synthetic leather topcoats, textile coatings, paper and film protection, and specialty ink binders. One major synthetic leather operation demanded a film-forming emulsion that could pass repeated Martindale abrasion and show no cracking even in deep flex testing. Plant data from partner companies confirmed 290H maintained both gloss and elongation long after standard acrylic blends failed. The resin holds well on polyurethane-based basecoats as well as challenging PVC or polyester substrates.
Our operators have watched custom color runs using 290H disperse both inorganic and organic pigments without foaming or unevenness. In textile mills, the resin yields soft but tough backings that resist washout and wrinkling. For the specialty paper industry, its waterborne nature prevents fiber swelling and blur that other polymers sometimes cause. In digital inkjet and gravure applications, 290H brings fast resolubility and helps prints hold up under heat.
Several major finishers switched to 290H from old solvent-borne polyurethanes after finding that their previous formulas struggled with surface mar and yellowing under UV light. In one auto interior application, our technical staff solved a persistent adhesion failure by reformulating the primer with this resin; follow-up tear, abrasion, and humidity chamber data all trended upward, which eliminated costly recalls and field failures.
In daily use, the differences between waterborne polyurethanes become quickly evident—especially on the shop floor, where a batch that breaks or puddles means downtime and waste. Witcobond 290H arrives ready for use, supplying a stable, pumpable dispersion that does not require pre-mixing or dilution tweaks. Older waterborne chemistries sometimes needed complicated neutralizer additions; our plant design has engineered this out, meaning tank-to-line certainty for users.
A head-to-head comparison against acrylic-modified competitors reveals clearer films and better resilience under physical stress. Many waterborne resins, especially in commodity grades, sacrifice flexibility to gain early hardness, leading to brittle films that split on sharp bends. The 290H backbone retains sufficient elongation for wearable textiles, coated cords, and high-traffic furniture. Our data indicates a notable jump in water resistance and chemical stability—markers tracked in real outdoor exposure tests and continuous process runs in client operations.
In coating applications that must pass flame retardant or migration testing, 290H behaves with predictability. Its composition avoids plasticizers and other additives that tend to drift or yellow over time—a flaw that has undercut numerous competitors in our customers’ side-by-side trials.
Environmental oversight shapes every decision in coatings manufacture. Over the last decade, state and national requirements on VOCs, HAPs, and hazardous monomer content have forced the industry to rework product lines. When we developed the 290H resin, we aimed directly at those performance shortfalls which have kept many finishers clinging to solvent systems. 290H ships with consistently low VOC and nearly undetectable levels of regulated volatiles—measured and checked by both our own and third-party labs before drums leave the loading dock.
Our manufacturing site holds ISO 9001 and 14001 accreditations, and both global enterprises and smaller regional finishers have integrated Witcobond 290H into compliance-managed workflows. The low-emissions profile enables customers to meet air permitting targets without sacrificing end-use properties. Large-format laminators facing regulatory audits have reported clean runs and negligible stack emissions.
We’ve also invested in long-term biodegradability and aquatic toxicity studies, drawing on independent testing agencies. The data supports use in products destined for green-label certification, for companies seeking to distinguish sustainable textiles or non-toxic consumer finishes in retail markets. As a true waterborne system, 290H runs without harsh coalescents or glycol ethers, further reducing the need for restricted substances.
Any plant manager who has spent time troubleshooting sticky tanks or reconciling erratic batch yields knows the value of reliability. Witcobond 290H surprises first-time users with how smoothly it adapts to existing plant setups. Our own experience in scaling from pilot to bulk production led us to tune the resin’s viscosity window to permit direct pumping with standard equipment, avoiding the need for special impellers or custom blending tanks.
We worked alongside partner facilities to map its behavior across variable temperatures and water chemistries. The resin absorbs shear energy in mixing without separating or foaming. Our QC protocols check every lot for these physical behaviors, not just standard paper values, because we know customers measure performance with their own hands—not just by reading a datasheet.
In multi-stage finishing lines, plant engineers appreciate the broad compatibility of 290H with most common additives and matting agents. Dispersing agents, antifoams, or crosslinkers all perform as anticipated within real process parameters. Operators can cycle from primer to base, to color top, and finally to protective finish—without adjusting for erratic settling or separation. Only careful reactor design and relentless process validation made this possible, a reflection of our approach as manufacturers who live with the direct consequences of every product choice.
We believe that raw lab results only tell a fraction of the story. Years of on-site technical support have shown that plant-scale performance depends on much more than spreadsheet properties. Customers share feedback with us—sometimes photographs of product failures, other times phone calls about exceptional outcomes.
Take the case of a flooring factory in Southeast Asia, wrestling with batch rework rates due to variability in hardness and drying time. Transitioning to 290H aligned their production window to finish ahead of schedule, as the resin allowed faster through-cure, reducing in-process damage and hold-up. Scratch resistance and gloss hold dramatically improved, mirrored in lower claims and better customer feedback.
Another example: a premium synthetic leather line in Europe struggled with inconsistent color development when shifting between shades. Running pigment dispersion trials with 290H led to reproducible, bright hues on each shift—saving not just R&D hours, but also raw material cost on expensive color re-work. In the textile segment, an athletic gear OEM found that garments coated with 290H withstood over 50 launderings—with no delamination or loss of hand feel.
We have documented repeated success in gravure and roller application methods. Customers report less downtime from clogged nozzles and fewer production interruptions, outcomes often missed in strictly lab-scale evaluations. Several printers have standardized on 290H for its ability to maintain line speed without yield loss. These on-the-ground stories matter, as they show long-term value beyond what any controlled test could demonstrate.
Our commitment does not end at the reactor’s output. We are in regular contact with finishers, printers, and apparel brands, gathering not only performance data, but ongoing requests for adjustments in application methods, pigment loading, or specialty performance targets. Witcobond 290H stands as a reflection of this continuing dialogue.
Coatings evolve as end markets shift—customers demand softer touch or deeper gloss, new regulatory benchmarks emerge, and process engineers adopt different crosslinkers or stabilizers. To stay relevant, our manufacturing team studies returned samples, conducts in-plant troubleshooting visits, and sends field teams out for line trials. This boots-on-the-ground approach feeds directly back into our quality and product improvement programs. Technicians on our production floor, many with decades of experience, weigh in at every adjustment—ensuring that improvements reflect factory reality, not abstract research.
No product survives long in this business without owning up to weaknesses. Over time, we found rare instances where specific pigment chemistries or highly acidic pH levels in certain customer applications weakened film properties. We catalog and share these issues openly with our partners, while working to adapt our formulation or propose practical workarounds. Collaboration across our R&D, production, and technical support teams closes the loop from laboratory to bulk shipment—and then to plant floor.
Across industries, from synthetic leather to industrial paper, every client we serve counts on uninterrupted production and predictable quality. Emergencies—flake formation in tanks, softener migration, color shift—hit fast and disrupt schedules. Witcobond 290H was made for those who appreciate resins that roll off tankers and unload straight into mixers with minimal fuss. We understand the stakes, as every late batch or surface defect gets magnified downstream.
Resins like 290H help close the gap between achievable environmental responsibility and needed toughness in performance coatings. We support users with more than a product; we offer deep process knowledge. By remaining closely embedded in both R&D and real-world plant operations, we make sure that the resin does more than match specs—it proves itself in the hands of operators, colorists, laminators, and quality managers under live conditions.
We believe that quality chemical engineering starts with respect for mainline operators, their relentless schedules, and constantly shifting end-customer pressures. Witcobond 290H represents an accumulation of decades of manufacturing insight, regulatory adaptation, and hands-on learning from the realities of full-scale production.
In today’s market, clients face competition from abroad, shifting regulatory landscapes, and consumers who can spot even microscopic defects. The margin between success and failure often sits in those small technical details—film uniformity, resistance to abrasion, colorfastness, drying window. Every batch of our 290H resin has been shaped by these needs. Our daily focus remains on improving its performance further, keeping customer lines running smoothly, and championing safer, cleaner chemistry.
Any company looking for waterborne polyurethane resins today will come across options that overpromise and underdeliver, especially in the “green” coatings category. We have seen too many cases where poorly engineered dispersions left customers with sticky films, heavy re-work, or persistent regulatory challenges. At our plant, every shift produces materials that have to answer only one question—will this resin actually perform, and keep performing, in real production lines?
Clients who choose Witcobond 290H invest in more than just a drop-in material; they join a continuing exchange of knowledge and support born from the experience of actual chemical manufacturing. This trust shapes our approach, our QC methods, and every collaborative project we take on. Product innovation at our facility isn’t a matter of slogans or sales copy. It comes from listening to repeat customers, learning from failures, and executing on the details that underpin lasting business relationships.