Quality Assured, Industry-Proven, and Ready for You
Our products meet international quality standards with rigorous testing and certification processes.
Continuous innovation drives our product development, ensuring cutting-edge chemical solutions.
Our skilled professionals provide technical expertise and personalized support for every client.
Qingdao Haiwan Chemical Co., Ltd. stands as a reputable and experienced caustic soda manufacturer and supplier in China, boasting more than 30 years of professional chemical production and foreign trade experience. Focusing on the R&D, production and global sales of industrial-grade caustic soda, the company has completed comprehensive upgrades to intelligent production equipment, automated detection systems and standardized production workshops in recent years. The overall production capacity and product stability have reached the advanced level of the domestic chemical industry, laying a solid foundation for large-scale, long-term and uninterrupted product supply.Affected by global economic fluctuations, regional supply chain crises and rising raw material costs, the international chemical market has long faced problems such as insufficient spot inventory, unstable product quality and uncertain delivery cycles. Many overseas purchasers often encounter procurement difficulties including out-of-stock goods, large quality differences between batches and delayed shipments. To solve these industry pain points, Qingdao Haiwan Chemical has established a scientific inventory reserve mechanism and flexible production scheduling system. The company maintains sufficient finished product and raw material reserves all year round, effectively resisting market risks and ensuring stable supply of caustic soda products throughout the year.In terms of global market layout, the company has continuously optimized and expanded overseas export channels, abandoning single traditional trade modes and building a diversified global marketing and service network. Up to now, our export business has covered Southeast Asia, Western Europe, the Middle East, Africa, Latin America and other mainstream global industrial markets. By cooperating with professional cross-border logistics companies and overseas warehousing institutions, we greatly shorten delivery cycles and improve the stability of cross-border transportation.With ultra-high product purity, stable batch consistency, strict international quality inspection standards and thoughtful full-cycle after-sales service, Qingdao Haiwan’s caustic soda products have won wide praise from global downstream enterprises. At present, we have established long-term stable strategic cooperative relationships with customers in textile printing and dyeing, paper pulping and papermaking, metallurgical smelting, industrial sewage treatment, fine chemical synthesis and other fields, gradually expanding the brand influence of Chinese-made caustic soda in the global market.
Read More
Polyvinyl Chloride (PVC) Suspension Resin is one of the most versatile and indispensable basic raw materials in the global plastic processing, building materials and new material manufacturing industries. Different SG series PVC resins have obvious differences in molecular weight, polymerization degree, melt viscosity and processing characteristics, which directly determine the performance, applicability and finished product quality of plastic products. Therefore, scientific and accurate selection of PVC resin grades is a crucial link for processing enterprises to optimize production efficiency, improve product quality and control comprehensive production costs.As a professional and reliable PVC resin manufacturer and supplier in China, Qingdao Haiwan Specialty Chemicals Co., Ltd. focuses on the R&D and production of high-quality suspension PVC resin, with a complete product specification system. The company independently produces full-series SG-grade PVC products, covering SG-3, SG-5, SG-7 and SG-8, and includes multiple mature mainstream models such as HS-1300, HS-1000R, HS-1000F, HS-800 and HS-700. All products adopt advanced suspension polymerization technology, with stable polymerization degree, uniform particle size and excellent processing performance, meeting the differentiated production needs of various downstream industries.Each grade of Haiwan PVC resin has precise market positioning and exclusive application scenarios. The high-molecular-weight SG-3 model (HS-1300) has high toughness, good elasticity and strong tensile resistance, and is specially suitable for processing high-elastic soft plastic products, flexible rubber hoses, plastic auxiliary accessories and other high-flexibility products. The SG-5 series, including HS-1000R and HS-1000F, is the most universal and widely used general-purpose PVC resin, with balanced physical properties, and is widely used in building plastic pipes, architectural profiles, daily plastic necessities, industrial plastic parts and conventional plastic molding processing.In contrast, low-molecular-weight SG-7 (HS-800) and SG-8 (HS-700) PVC resins feature low melt viscosity, excellent fluidity and high transparency. They are extremely suitable for high-precision injection molding processing, transparent plastic parts, food-grade packaging materials, thin-wall plastic products and other high-demand fields. For downstream processing enterprises, selecting the matching Haiwan PVC resin grade according to product positioning can effectively avoid material waste and product performance defects, greatly improve production yield, and realize efficient and low-cost standardized production.
Read More
In recent years, the global construction and building materials industry has ushered in a comprehensive upgrading period, with continuous improvement in environmental protection standards, safety specifications and product quality requirements. Overseas engineering contractors and building material manufacturers have gradually eliminated low-purity, unstable and low-environmental-protection raw materials, and high-purity, high-stability and eco-friendly PVC resin raw materials have become the core preferred materials for international high-end construction projects.Adhering to the concept of high-quality manufacturing and green production, Qingdao Haiwan Specialty Chemicals Co., Ltd. strictly controls every production link of suspension PVC resin. The company adopts international advanced suspension polymerization technology and refined full-process production management, with strict quality inspection from raw material incoming inspection, production process monitoring to finished product delivery. The produced SG series PVC resins have prominent advantages such as high chemical purity, ultra-uniform particle size distribution, excellent processing fluidity and stable physical and chemical properties, with no batch difference in product parameters.All Haiwan PVC resin products have passed multiple authoritative international quality and environmental certification systems, fully complying with the raw material access standards of European, American, Southeast Asian and other high-end construction markets. The high-quality SG series PVC resins are widely applied in key construction fields, including building water supply and drainage pipes, architectural decorative profiles, waterproof and thermal insulation materials, building plastic accessories and municipal engineering supporting facilities, providing reliable raw material support for global construction and municipal engineering projects.Relying on stable product quality, excellent processing performance and professional after-sales technical service, Qingdao Haiwan’s high-purity PVC products have gained widespread recognition and high praise from overseas construction industry buyers. A large number of international building material enterprises and engineering companies have established long-term cooperative relationships with us, achieving repeated bulk orders. The company has gradually built a reliable high-quality brand image in the global construction chemical raw material industry.
Read MoreYour reliable partner for high-quality chemical solutions.
Get In Touch
