© 2026 Anhui Liwei Chemical Co., Limited,
All Right Reserved
|
HS Code |
948102 |
| Product Name | Middle Viscosity HCPE(M) For Paint Grade |
| Appearance | White or light yellow granular powder |
| Solubility | Soluble in aromatic hydrocarbons, esters, ketones, and chlorinated solvents |
| Chlorine Content | 60-68% |
| Viscosity | 200-500 mPa·s (20°C, 20% solution in solvent) |
| Volatility | ≤1.0% |
| Softening Point | 90-108°C |
| Density | 1.16-1.22 g/cm³ |
| Ash Content | ≤0.2% |
| Thermal Stability | Stable below 140°C |
| Moisture Content | ≤0.3% |
As an accredited Middle Viscosity HCPE(M)For Paint Grade factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The Middle Viscosity HCPE(M) For Paint Grade is packaged in 25 kg net weight, sealed fiber drums lined with plastic bags. |
| Container Loading (20′ FCL) | Middle Viscosity HCPE(M) for Paint Grade is packed in 20′ FCL containers, ensuring secure, efficient bulk transportation for export. |
| Shipping | The chemical **Middle Viscosity HCPE(M) For Paint Grade** is securely packed in 20 kg or 25 kg fiber drums or PE bags, ensuring moisture protection. Shipments are dispatched by sea, air, or land, based on customer requirements, with clear labeling and safety documentation to guarantee safe and compliant transportation. |
| Storage | Middle Viscosity HCPE(M) for Paint Grade should be stored in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizers. Keep containers tightly closed to prevent moisture absorption and contamination. Store in original packaging and avoid exposure to open flames or sparks. Follow all safety and regulatory storage guidelines for chemicals. |
| Shelf Life | Shelf life of Middle Viscosity HCPE(M) for Paint Grade is typically 12 months in cool, dry, and sealed storage conditions. |
Competitive Middle Viscosity HCPE(M)For Paint Grade 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!
In the paint industry, finding a resin that balances solubility, chemical resistance, and application stability is a challenge every formulation chemist and manufacturer faces. Middle viscosity chlorinated polyethylenes, especially our HCPE(M) for paint grade, stem from years of hands-on production, process fine-tuning, and close collaboration with coatings customers. In our daily manufacturing, viscosity determines how well a resin integrates with co-solvents, how much pigment it can wet out, and how it lays down on a prepared surface. The “middle viscosity” mark (averaging between 100 to 200 mPa·s as measured by our internal QC at specific solid content and temperature settings) landed as a practical sweet spot after watching both low and high viscosity variants in the field—on steel beams at harbors, city bridges, and factory floors.
The most requested model from our series, commonly identified as HCPE(M)-120, stands out for delivering both handling ease and strong film formation. Every batch undergoes controlled chlorination under monitored temperature, producing a polymer backbone with a targeted chlorine content hovering near 65%. This chemistry provides the combination of flame retardancy and chemical durability demanded by industrial anti-corrosive coatings.
Other grades in the HCPE(M) line, like our -100 and -160 variants, address jobs where either faster flow or higher build are needed. We have seen, in thick steel structure primers, the -160 variant’s higher viscosity slow sag but maintain brushability for field workers on vertical surfaces. Lower viscosity -100 offers pumpability and quick uniform mixing in large tanks, essential for automated paint shops with inline dosing.
Each of these models shares the hallmark features of chlorinated polyethylenes: the absence of double bonds improves ultraviolet stability, the dense molecular structure resists water ingress, and the tailored chain length controls solubility—each property honed on-site through our own dialed-in reaction recipes.
Viscosity shapes real-world outcomes for manufacturers and end users alike. Too low, and the resin offers only limited build; coatings run and fail to reach required thickness before curing. Too high, and the material strains mixing and leaves behind lumps or undispersed pigments. Our go-to middle viscosity grade hits a practical middle ground, avoiding the stickiness that slows down production lines but offering enough molecular weight to reinforce barrier properties.
This balance becomes especially clear for marine primers or heavy machinery topcoats. Paint plants using HCPE(M) see straightforward integration with common solvents like xylene and cyclohexanone. Once dissolved, the resin keeps pigments evenly suspended, minimizing settling during storage or transit. Roll-applicators and sprayers benefit from the resin’s ability to maintain flow, reducing maintenance and downtime during long shifts.
We chose to prioritize middle viscosity through years of feedback from paint plant QC managers and hands-on coating teams, who demanded both reproducibility and adaptable performance.
HCPE(M) finds its main use in the realm of high-durability paints, where resistance to acids, alkalis, saltwater, and oil matters. Shipyards working block painting in humid sea climates, as well as chemical plant operators, turn to middle viscosity grades for predictable application and lasting film protection. Compared to unchlorinated binders or acrylic-modified products, chlorinated polyethylenes like HCPE(M) deliver a low-permeability film. That means slower corrosion onset and fewer costly re-coats.
We’ve watched, over multiple seasons, how paints built on mid-viscosity HCPE(M) resist yellowing from sun exposure and continue to repel aggressive cleaning agents. This translates to real world advantages: crews spend less time on maintenance, asset owners cut down on long-term costs, and re-application intervals stretch, especially on metal infrastructure exposed to rain and salt spray.
Manufacturers often encounter the need to tweak formulations to respond to raw material shifts and shifting customer needs. With every HCPE(M) delivery, we work side-by-side with paint labs to troubleshoot issues like pigment float, solvent compatibility, and film formation. In the mixing stage, the resin solution must wet pigment and filler surfaces without causing flocculation. Our mid-viscosity line goes through rigorous high-shear mixing and real spray booth trials before release.
Sometimes a customer needs longer pot life for two-component systems. Other times, sag control or faster drying takes priority. Through bench-top trials and large-scale tests, we have refined our advice on solvent ratios, stabilization additives, and cross-linkers to match the resin. Our knowledge comes less from literature and more through years of real batch runs, measuring sag, gloss, and adhesion panel by panel.
Painting contractors and plant-based coating formulators often choose between chlorinated rubbers, acrylics, epoxy esters, and chlorinated polyethylenes. From our daily blending and field exposure panels, HCPE(M) delivers better adhesion on pre-treated steel and aluminum, outperforming both chlorinated rubbers and low-viscosity chlorinated polyolefins in salt-fog tests. Compared to acrylics, the chemical resistance story tips decisively in favor of HCPE(M), especially in harsh wash-down or acid vapor locations.
Epoxy-based paints still offer unmatched hardness and chemical resistance, but slow curing, pot life management, and mixing difficulties limit their use on busy production lines. Middle viscosity HCPE(M) provides flexibility—customers can package single-component products that deliver lasting results without jobsite blending or expensive plural component equipment.
From the resin manufacturer’s side, the work begins with strict feedstock polymer control. Only clean, high-density polyethylenes with stable molecular weights get selected for chlorination. Batch-to-batch variation is kept in check with in-process viscosity checks and chlorine percent testing. Post-reaction, we flush the HCPE(M) to remove residual acids and filter thoroughly for fine solids removal. Each shipment then passes solubility tests in standard paint-grade solvents to confirm its readiness for blending rooms, not just for the lab.
Paint factories appreciate that mid-viscosity HCPE(M) neither gels unexpectedly nor thins out during summer storage. Bulk deliveries arrive in lined drums with tamper-evident seals, and our teams visit plants to confirm material handling setup fits each site’s needs. These practical supports stem directly from lessons learned by seeing the frustration caused by off-viscosity batches years ago.
Every manufacturer faces increasingly strict regulations on emissions and worker exposure. Chlorinated polyethylenes, including our HCPE(M) line, come with a lower volatile organic compound (VOC) content compared to natural resins, and they do not generate significant dust in powder form. During hot blending, fume control relies on well-maintained ventilation, and the absence of free chlorine in the finished product makes the resin safer for operators than older chlorinated rubber types.
Handling guidelines emphasize personal protective equipment, proper waste collection, and maintaining mixing room cleanliness. Spills clean up with standard hydrocarbon solvents, and spent containers undergo our scheduled take-back and cleaning program to prevent environmental release.
We stay in step with paint industry best practices and country-specific safety recommendations, publishing both safety and technical bulletins directly from our plant’s safety office.
Disruptions in raw material supply generate immediate headaches for paint manufacturers. Our production scheduling takes a longer view: buffer stocks, multi-line production, and on-site storage reduce the risks of missed delivery. For urgent projects, such as infrastructure contracts with penalty clauses, we coordinate with transporters ourselves to meet customer timelines. Our commitment doesn’t end after a truck leaves the factory; technical support staff follow up to confirm proper receipt and transfer into customer stockrooms.
No resin is immune to variation or application challenges, especially under widely different climate and equipment conditions. By prioritizing batch data collection and open feedback from customers in the field, we identify pain points early—be it clogging in fine mesh screens, variable color stability, or gelling under certain solvents. Our QC team then adjusts process parameters, from reaction temperature to post-treatment cycles, to keep properties on target.
We believe plant visits and collaborative lab trials with customers drive more honest improvements than survey forms or phone support alone. Our senior process engineers regularly spend time at application sites, observing actual mixing, pumping, and spraying, then returning to our plant to test modifications before full-scale changes.
Years in the coatings industry have shown us time and again that a resin’s promise needs to match its outcome under real conditions—not just test panels or short-term exposures. On wind-swept oil storage tanks in coastal terminals, paint blended with our HCPE(M) middle viscosity resin achieves full coverage with fewer coats than previous chlorinated rubber paints, surviving both salt blasts and repeated washing.
Steel girder manufacturers told us of fewer complaints about blush and chalking after switching from a competitor’s high-viscosity grade prone to pigment separation. We’ve supported shipyard teams through seasonal weather swings, troubleshooting dew formation and humidity effects, ensuring the paint flows and cures as intended. The feedback cycle drives us to adapt production and provide hands-on recommendations that deliver meaningful, measurable value to every user.
Every shift in base resin alters not just final film, but also every step from pigment scraping to filler wetting and final tinting. Regular plant customers often call us in during reformulation drives, especially to calibrate non-volatile content, driers, and co-resins. With HCPE(M), middle viscosity helps maintain pigment loading and allows for easier incorporation of plasticizers or micronized silica for matting. Teams targeting anti-slip or textured finishes like the flow control and consistent drying the resin gives.
During audits, our field support teams show QC techs live demonstrations of viscosity adjustment and real-time panel application, carefully correlating process observations with field failures or successes.
Production teams at customer plants often ask about shelf life, climate resilience, and storage requirements. Our own storage tests show that drums sealed and kept under typical factory conditions maintain performance for at least twelve months. Paints formulated with HCPE(M) tolerate temperature swings and have lower risk of hot-weather gelation compared to some acrylic systems.
Customers relying on direct-to-metal formulations press us on adhesion and salt spray results, and our on-site panels—exposed for hundreds of hours in both salt fog and cyclical humidity—outperform legacy nitrocellulose and basic alkyd resins. We answer not with generic claims but by showing shipment batch numbers and corresponding field panel data, providing traceability and reliability unmatched in third-party sourced options.
Manufacturing HCPE(M) draws on decades of shop floor learning. Operators adjust chlorine flow, maintain reactor temperature within a tight band, and sample hourly for viscosity drift. Real-time panel tests, solvent dissolution checks, and water absorption measurements keep batches aligned with established benchmarks. Quality means that each drum performs the same from the factory to the end-user shop, with full traceability maintained from incoming raw polymer to final shipment.
On the shop floor, we keep a close eye on process bottlenecks and never hesitate to pull batches that don’t measure up. Dedication to process control, operator training, and granular data tracking shapes every ton of HCPE(M) leaving our gates.
The HCPE(M) paints go to customers whose needs rarely pause. Maintenance contractors for power plants, teams restoring bridges and pipelines, and marine repair yards all deploy coatings based on our middle viscosity HCPE(M). We see our product in maintenance yard storerooms, city bridge painting projects, and the hands of maintenance mechanics working at height throughout the year.
Paint built on this resin sticks, protects, and endures—across steel, concrete, and alloy. We believe that the real measure of any industrial resin is not a test report, but a bridge standing tall year after year, a ship hull resisting corrosion another season, an operator returning for the same product shipment after shipment.
As paint formulators look to meet stricter regulations and lengthen maintenance cycles, feedback on HCPE(M) for paint grade gives us direction on future developments. Our next steps include pushing chlorine content control even tighter, lowering residual solvent and optimizing particle size to boost both appearance and performance. We remain committed to transparent collaboration, open field trials, and consistent production rooted in real-life conditions.
What matters most is simple: delivering a resin that enables paint makers, specifiers, and applicators to work with confidence—knowing what’s in the drum matches what’s needed on the job.
