Product Summary

PVA 2688 is a partially hydrolyzed polyvinyl alcohol with a degree of polymerization around 2600, hydrolysis degree 87-89%, and viscosity 55-65 mPa·s. It provides strong adhesion, excellent film-forming, and is water-soluble, making it ideal for high-solid construction glue, thick exterior coatings, special carton adhesive, and mineral binder applications.

Key Selling Points

• High Viscosity (55-65 mPa·s): Provides strong adhesion and film-forming, ensuring durable construction glues and putties.
• Partially Hydrolyzed (87-89%): Optimal for alkaline cement systems, improving water retention and crack resistance.
• Water-Soluble: Easy to dissolve and mix, enhancing production efficiency.
• Non-Toxic: Safe for interior construction applications.
• Customizable Mesh Size (80-200 mesh): Adjustable to match automatic feeding lines.

Technical Specifications

Models and Options

Available as PVA2688 with customizable mesh size (80-200 mesh) for various production lines. Other PVA grades such as 1788, 2488 are also available.

Materials and Structure

PVA is manufactured by alcoholysis of polyvinyl acetate (PVAc). It is a water-soluble polymer in white powder/flake form with excellent film-forming property and strong adhesion.

Applications

High-solid construction glue, thick exterior coating, special carton adhesive, mineral binder, interior wall putty, and repair mortar.

Customization

Mesh size adjustable from 80-200 to match automatic feeding lines. Provide technical formula guidance and remote support.

Case Study

Construction Chemical Distributor in Brazil: A local distributor in Brazil purchases PVA 1788/2488 series (1120 tons annually) for wall putty and mortar production. Uniform particle mesh size ensures fast dissolution, and the product enhances adhesion, water resistance, and crack resistance. The low ash formula ensures consistent quality even in high temperature and humid climate.

FAQ

Inquiry Information

Contact Kelvin at kelvin@xmhwchem.com or WhatsApp +86 158-8028-4585 for more details.

Image Filename and Alt Suggestions

Main Image: pva-2688-powder-bag.png – Alt: Partially hydrolyzed PVA 2688 powder in white bag

Detail Image 1: pva-2688-production-line.jpg – Alt: Automated production line for PVA 2688

Detail Image 2: pva-2688-application.jpg – Alt: Application of PVA 2688 in construction glue