F51 Paste PVC Resin K70 with Low Viscosity Good Foaming and Heat Stability for Leather and Coatings

F51 Paste Polyvinyl Chloride Suspension Resin K70

Langhui LF-51L PVC Paste Resin Characteristics 
Low paste viscosity, small ongoing change,good deforming property,good foaming micropore,good heat stability and gelation. 
Langhui LF-51L PVC Paste Resin Applications 
Conveyer belt,toys, clothing leather,artificial leather,automobile leather,floor leather,tarpaulin,awning cloth,bottle cap gaskets and steel wire coating.

This product is engineered to deliver exceptional performance through three key differentiated advantages, starting with its outstanding whiteness. Unlike conventional products that tend to carry a subtle yellow or grey undertone, this grade boasts an ultra-pure, neutral white base that preserves the true saturation and vibrancy of any tinting pigments added downstream. This purity eliminates the risk of muddy or dulled final hues, enabling manufacturers to achieve even the most delicate, bright pastel shades and crisp pure whites that meet strict aesthetic standards for high-end end products. Its second core advantage is industry-leading tinting strength and superior hiding power. Thanks to optimized particle engineering, only a minimal loading level is required to reach the target color opacity. This high efficiency allows formulators to reduce overall pigment consumption in their recipes by up to 10-15% compared to standard alternatives, directly translating to lower raw material costs and improved production margins without sacrificing performance. Additionally, its powerful hiding capability effectively masks inherent discoloration, impurities, and uneven tones in the base substrate, ensuring a consistent, flawless appearance across every batch of finished product. The third defining attribute is its ultra-fine, tightly controlled particle size distribution. Every particle is milled and classified to an exceptionally narrow size range, eliminating coarse agglomerates and oversized particles that cause surface defects. This fine, uniform particle structure delivers excellent dispersibility across virtually all resin systems, preventing issues like filter cake buildup during processing, speckling on the final surface, or reduced mechanical strength in the end product. The result is a consistently smooth, polished surface finish that meets the requirements of even the most demanding applications with tight tolerance for visual defects.   Expanded General Application Areas With its versatile performance profile, this product is compatible with a wide range of industrial processing systems and finds widespread use across multiple high-volume sectors: • Coatings and Paints: It is a versatile pigment for a full spectrum of coating formulations, including interior/exterior architectural architectural emulsion paints, heavy-duty industrial protective coatings, furniture and wood coatings, and automotive refinishing paints. In architectural applications, its strong hiding power reduces the number of coating passes needed to cover old wall surfaces, cutting application time for contractors, while its stable white base ensures long-term color retention without yellowing over years of sun exposure. For industrial coatings, it adds both aesthetic appeal and functional durability to finished components. • Printing Inks: It is a trusted core pigment for manufacturing water-based, solvent-based, and UV-curable printing inks for packaging, publication, and commercial printing. Its fine particle size delivers excellent print flow and transfer properties on press, enabling sharp, clean edge definition for text and graphics, while its high tinting strength delivers consistent, opaque color coverage even on non-porous substrates like coated packaging boards and plastic films. It performs reliably across all common printing processes, from offset and gravure to flexographic printing. • Masterbatch: As a high-performance universal white pigment, it is the preferred choice for producing both white and custom-tinted plastic masterbatches. It exhibits excellent compatibility with all common polyolefin and engineering plastic carriers, dispersing evenly without causing viscosity shifts or processing issues during compounding. It provides consistent, long-term color stability for the masterbatch, ensuring that end manufacturers get uniform coloring from batch to batch in their final injection molding, blow molding, or extrusion processes. • PVC Plastic Profiles and Recycled Plastics: It is specially well-suited for rigid PVC applications, including window and door profiles, pipes, siding, decorative panels, and foam boards, as well as for color upgrading of post-consumer and post-industrial PVC recycled granules. For virgin PVC, it delivers a bright, uniform white base that meets the long-term weathering requirements of outdoor building products. For recycled PVC, it effectively masks the inherent yellowing, greying, and residual color contamination that comes from reprocessing, bringing the performance and appearance of recycled material close to virgin resin levels, and supporting manufacturers’ circular economy and sustainability goals. It is also compatible with most other general purpose thermoplastics used across the plastics processing industry.