Engineered Polymeric Rolls, Sheets, and Medical-Grade Blister Packing Solutions
Founded in 1996, Jiangsu Dahai Plastics Co., Ltd. has evolved into a powerhouse of polymer innovation and large-scale calendering technology. As a prominent private enterprise, we specialize in the design, formulation, and manufacture of advanced Polyvinyl Chloride (PVC) films, including super transparent films, industrial roll sheets, specialized medical-grade bags, and functional decorative overlays.
With a comprehensive manufacturing campus spanning over 120,000 square meters, our facilities represent the state of the art in modern extrusion, calendering, and surface treating. Our commitment to quality, scalable output, and deep research partnerships has enabled us to achieve an annual production capacity exceeding 100,000 tons, with sales topping 1 billion RMB. We integrate vertical manufacturing capability—from raw granule compounding to finished precision rolls—guaranteeing our global partners unmatched batch consistency and competitive positioning.
In polymer engineering, flexible PVC performance is dictated by precise compounding, molecular weight distribution of the vinyl resin, and the integration of non-migratory plasticizers. Jiangsu Dahai Plastics utilizes advanced calendering technology that ensures minimal gauge variation, optical clarity, and exceptional thermal stability across varying temperature brackets.
Our formulation engineers customize the Shore A hardness, UV stabilizer packs, and anti-oxidants depending on the application environment. For instance, cold-crack resistance can be engineered down to -30°C for arctic logistic applications, while outdoor-grade films receive customized Hindered Amine Light Stabilizers (HALS) to prevent photolytic degradation and yellowing.
Dahai’s lines utilize a five-roll calendering sequence followed by online automated scanning to ensure thickness tolerances are held within ±0.01mm. This uniform density distribution prevents tension variations during high-speed slitting or subsequent thermoforming operations.
| Parameter Field | Standard Range | Advanced Capabilities |
|---|---|---|
| Thickness Range | 0.05 mm - 3.00 mm | Ultra-thin 0.03 mm high-tensile custom sheets |
| Shore Hardness | 60 Shore A - 95 Shore A | Customized rigid PVC (up to Shore D 85) |
| Tensile Strength | ≥ 18 MPa | Enhanced cross-linked orientation up to 25 MPa |
| Cold-Crack Rating | -10 °C standard | Extreme durability formulas rated down to -45 °C |
Why Dahai’s Infrastructure Outperforms in Scalability, Lead Times, and Unit Economics
Unlike standard converters, we process our own raw PVC compound pellets in-house. This direct processing controls material purity, prevents cross-contamination, and stabilizes raw material supply against volatile chemical index pricing.
Situated in Jiangsu Province, Dahai is strategically connected to major high-capacity marine terminals (Shanghai & Ningbo Ports). This proximity minimizes inland freight transit costs and ensures shipping windows are met reliably.
Over 120,000 square meters of production and warehouse floor enables us to maintain raw material buffer stocks and finished base-specification rolls. This buffer mitigates global shipping delays for rapid-response projects.
Analyzing how different industries leverage Dahai PVC films to maintain compliance and structural integrity
Medical manufacturing requires compliance with strict toxicological benchmarks. Our dedicated cleanroom calendering units produce translucent, medical-grade soft PVC films optimized for high-frequency radio welding (RF welding). These materials are standard in the production of:
In construction and infrastructure, PVC films function under demanding structural loads. Dahai’s SPC flooring wear layers and heavy-gauge industrial rolls provide structural protection, abrasion resistance, and sound dampening properties:
For consumer goods, toxicity guidelines are non-negotiable. Dahai formulations comply with global toy safety legislation, verifying that heavy metals and volatile organic compounds (VOCs) are absent from the polymer matrix:
Our facility houses standard testing equipment, including China National Commission for Conformity Assessment (CNAS) accredited laboratories. By executing comprehensive quality protocols, we monitor batch stability down to the smallest detail. Raw materials undergo inline spectral screening, and finished products undergo tensile, density, and plasticizer migration testing before loading.
Our quality assurance workflow features advanced diagnostic systems, including Agilent Gas Chromatography (GC) analyzers for plasticizer verification, universal testing machines, gloss meters, and environmental cold-chambers.
Collaborating with tier-one suppliers and industry partners across 40+ countries
Quality and environmental management systems audited and approved by international registers
The plasticized vinyl industry is entering a new phase of environmental design and raw material optimization. At Dahai Plastics, we work with domestic polymer research institutes to develop technologies that minimize ecological footprints while maintaining mechanical strength.
Developing formulations using bio-based plasticizers derived from agricultural byproducts, reducing dependency on petrochemical bases and improving biodegradability.
Installing regenerative thermal oxidizers (RTO) across our calendering configurations to capture VOCs and reduce carbon footprints during processing.
Deploying closed-loop scrap recovery systems, allowing industrial off-cuts to be pelletized in-house, minimizing material waste and stabilizing raw material consumption.
Key information regarding industrial ordering, formulations, and compliance
Premium Medical-Grade Packing Films, Embossed Sheets, and Technical Polymer Granules
Dahai Plastic
