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Polyvinylpyrrolidone K90 (PVP K90): A Key Polymer for Enhancing Solid Glue Performance

Nov 17, 2025

Polyvinylpyrrolidone K90 (PVP K90), also known as Povidone K90, is a vital polymer compound that plays a crucial role in improving the performance and stability of solid adhesive formulations. With its high molecular weight and excellent binding properties, PVP K90 serves as a multifunctional additive that significantly enhances the quality and usability of solid glues.

 

Key Characteristics of PVP K90
PVP K90 is a white to off-white, odorless or nearly odorless hygroscopic fine flake or powder. It exhibits excellent solubility, biocompatibility, physiological inertness, and film-forming ability. These properties enable PVP K90 to form stable colloidal structures in solid glues while maintaining product stability and durability. Manufactured by ULKM under strict ISO-certified quality control systems, our PVP K90 ensures consistent performance and reliable results in various adhesive applications.

Povidone K90 Polymer

Functions of PVP K90 in Solid Glue Formulations

1. Adhesive Properties
PVP K90 demonstrates special adhesive characteristics toward glass, metal, and plastic surfaces, enabling strong bonding between various materials in solid glue formulations. Simultaneously, it acts as a dispersant and binder for slurries, pigments, and other substances, enhancing the adhesive strength and attachment capability of solid glues.

2. Thickening Capability
PVP K90 possesses excellent thickening properties that increase the viscosity of solid glues, making them more stable and preventing flow or dripping during application.

3. Film-Forming Function
PVP K90 can form a protective film on the surface of solid glues, preventing moisture evaporation from the adhesive matrix and thereby extending the product's shelf life.

4. Dispersion and Affinity
PVP K90 ensures uniform dispersion of all components within solid glues, preventing particle agglomeration. Additionally, it binds effectively with other components in the adhesive system, enhancing the overall performance of the final product.

 

Advantages of Using PVP K90 in Solid Glues

1. Enhanced Product Quality
The addition of PVP K90 significantly improves the adhesive strength, adhesion properties, and stability of solid glues, making products more durable and reliable.

2. Improved User Experience
PVP K90's thickening and film-forming characteristics enhance the user experience by ensuring smooth and even application, preventing dripping or unwanted flow during use.

3. Broader Application Scope
PVP K90's wide compatibility allows it to be used for bonding various materials including paper, plastics, and metals, thereby expanding the application fields for solid glues.

 

As a specialist in PVP manufacturing, ULKM provides PVP K90 with complete regulatory documentation and global compliance support, helping our customers meet international quality standards and market requirements.

 

Important Considerations for Using PVP K90:
When using PVP K90 as a solid glue additive, its strong hygroscopic nature requires attention. The material should be stored in a cool, dry place to prevent moisture absorption and degradation. Additionally, the dosage and ratio of PVP K90 should be properly adjusted according to specific application scenarios and process requirements to achieve optimal performance.

 

Choose ULKM as Your Reliable PVP K90 Supplier
With our dedicated production facility capable of manufacturing 3,000 tons of PVP annually, ULKM ensures consistent quality and stable supply for your solid glue production needs. Our comprehensive quality management system, supported by ISO 9001 certification and REACH compliance, guarantees that our PVP K90 meets the highest industry standards.

Whether you're developing new solid glue formulations or optimizing existing products, ULKM's PVP K90 offers the technical performance and quality assurance you need. Contact us today to request samples and technical data sheets for your specific application requirements.

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