Description

Vestopal W CAS NO 78920-44-2 is a specialized, highly reactive chemical intermediate widely recognized in advanced polymer synthesis. This compound matters for its role as a key building block in creating high-performance, cross-linked polymer networks with exceptional thermal and chemical resistance. Industries requiring durable, engineered materials, such as advanced composites, specialty coatings, and high-temperature adhesives, rely on its consistent quality and reactivity.

Application

• Cross-linking Agent for unsaturated polyester resins in high-strength composite materials.
• Reactive Diluent & Modifier in specialty coating formulations to enhance flexibility and chemical resistance.
• Key Intermediate in the synthesis of thermally stable polymers for automotive and aerospace components.
• Building Block for manufacturing fiber-reinforced plastics (FRP) and sheet molding compounds (SMC).
• Adhesive Formulation component for high-performance structural and industrial bonding applications.
• Electrical Encapsulation resins, providing excellent insulation and environmental protection.

Basic Information

Product Name	Vestopal W
CAS No.	78920-44-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Vestopal W; Vestopal; Unsaturated polyester resin W; Poly(oxy(1-methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-, (Z)-2-butenedioate; Butenedioic acid (Z)-, polymer with 1,2-propanediol and 2-methyl-1,3-propanediol; Propylene glycol maleate polyester; Maleic acid-propylene glycol polyester
EINECS	Contact for details

Quality Control

Our Vestopal W is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. The product undergoes rigorous analytical testing, including assessment of acid value, viscosity, and reactivity, to meet precise industry specifications. A Certificate of Analysis (COA) documenting all key parameters is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain product integrity. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Acid Value	Contact for details
Viscosity (at 25°C)	Contact for details
Solid Content	Contact for details
Gel Time	Contact for details
Identification (IR)	Conforms

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.