Water-based polyurethane resin

In everyday life, genuine leather furniture, leather goods, luggage, and automotive interior leather—with their soft, smooth texture, translucent grain, and resistance to wear and creasing—always offer a premium sensory experience. Many people believe that the quality of leather depends solely on the raw hide itself. In reality, what truly determines a leather’s feel, toughness, lifespan, and visual texture is the thin yet resilient finish coating on its surface—and the core ingredient that makes this high-quality coating possible is water-based polyurethane resin. As a core, high-end material in the leather finishing industry, it quietly optimizes leather performance, repairs surface imperfections, and imparts durability to products, making it an indispensable core additive for high-end leather goods.

Traditional solvent-based resins have a strong odor, poor environmental performance, and tend to make leather feel stiff and leave a sticky finish, failing to meet the high-quality standards required for today’s high-end leather goods and automotive interiors. In contrast, water-based polyurethane resin uses pure water as a dispersing medium; it is formaldehyde-free, low in VOCs, and free of pungent odors. It achieves environmental sustainability at its core and fully complies with safety standards for use in home furnishings, automotive applications, and luxury lifestyle products. At the same time, it combines softness, adhesion, and resilience, perfectly complementing the flexible nature of leather and establishing itself as the mainstream, upgraded raw material for modern leather finishing.

Shandong Jiurunfa Company has precisely addressed the pain points of the leather industry by optimizing the molecular structure of its products to create a specialized water-based polyurethane resin suitable for all types of genuine and synthetic leather. This resin effectively resolves common issues such as cracking, peeling, a dry and rough texture, and poor resistance to scrubbing, helping leather products achieve a dual upgrade in both appearance and quality.

In the leather finishing process, the water-based polyurethane resin produced by Jiurunfa plays three irreplaceable core roles. First, it optimizes the tactile feel and texture. The resin forms a thin, translucent film that does not obscure the leather’s natural grain. Once cured, it feels warm, soft, and supple—never hard or sticky—maximizing the restoration of the leather’s inherent premium texture and giving the finished product a refined, smooth feel that significantly elevates its quality.

Second, it provides exceptionally flexible protection, enhancing durability. Leather goods are frequently bent, stretched, and rubbed during daily use, and ordinary coatings are highly prone to cracking, peeling, and flaking. Jiurunfa Water-based polyurethane resin forms a highly elastic and flexible coating upon curing. It flexes and stretches with the leather, offering exceptional toughness, tear resistance, and resistance to repeated rubbing. This effectively prevents cracking and peeling of the leather surface, significantly extending the service life of leather goods. At the same time, the coating is abrasion- and scratch-resistant, withstanding minor daily bumps and scratches to keep the leather’s appearance intact for the long term.

Furthermore, the product offers excellent water and stain resistance, as well as restoration capabilities. A dense protective layer forms on the coated leather surface, providing waterproofing and stain resistance. Everyday dirt, water stains, and light oil stains can be easily wiped away without penetration or residue, effectively preventing mold, discoloration, and aging of the leather. For imperfect leather hides and refurbished secondhand leather, this resin can also perfectly conceal fine surface scratches and pore imperfections, unifying the color and texture. This significantly improves the finished product’s pass rate and helps leather manufacturers effectively control waste-related costs.

Compared to ordinary water-based resins, Jiurunfa’s water-based polyurethane resin offers superior compatibility and can be uniformly blended with various leather auxiliaries and color pastes. It exhibits excellent flow and leveling properties, is suitable for both spray and roller application, is easy to apply, resists pinholes, and prevents orange peel, thereby significantly improving production efficiency. The company strictly controls key indicators such as solid content, viscosity, flexibility, and adhesion throughout the entire production process. Product performance remains consistent across batches with no significant variations, eliminating the need for companies to repeatedly fine-tune formulations and making it suitable for large-scale batch production.

Backed by mature production processes and a comprehensive technical service system, Jiurunfa has become a trusted long-term partner in the industry thanks to its reliable quality and attentive, one-stop technical support.

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