Description

2-Oxepanone, Polymer With 1,3-Diisocyanatomethylbenzene, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2'-Oxybis[Ethanol], 2-Hydroxyethyl Methacrylate-Blocked is a specialized blocked polyurethane prepolymer designed for controlled reactivity in advanced coating and adhesive formulations. This compound matters because it provides a stable, one-component system that cures upon exposure to heat, releasing the blocking agent and enabling the formation of durable, high-performance polyurethane networks. Industrial manufacturers in the coatings, sealants, and specialty polymer sectors need this product to develop products with enhanced shelf stability, precise application properties, and superior final film characteristics such as chemical resistance, flexibility, and adhesion.

Application

• Heat-Curable Industrial Coatings: As a key resin component in powder coatings, coil coatings, and can coatings that require excellent flow, leveling, and final film properties.
• High-Performance Adhesives & Sealants: For formulating one-component polyurethane (1K PU) adhesives with long pot life that cure on demand to form strong, flexible bonds.
• Automotive OEM and Refinish: In primer, basecoat, and clearcoat systems where controlled cross-linking is essential for durability, gloss, and weatherability.
• Wire and Cable Insulation: As a coating material that provides excellent electrical properties, abrasion resistance, and thermal stability.
• Textile and Leather Finishes: To create durable, flexible, and water-resistant coatings on fabrics and synthetic leather.
• Composite Materials: As a matrix resin or sizing agent for fiber-reinforced plastics, improving interfacial adhesion and mechanical performance.

Basic Information

Item	Details
Product Name	2-Oxepanone, Polymer With 1,3-Diisocyanatomethylbenzene, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2'-Oxybis[Ethanol], 2-Hydroxyethyl Methacrylate-Blocked
CAS No.	123209-69-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	HEMA-blocked polyurethane prepolymer; 2-Hydroxyethyl methacrylate blocked polyisocyanate; Polycaprolactone polyol, polymer with diisocyanatomethylbenzene and other alcohols, HEMA-blocked; Blocked aliphatic polyurethane resin; Thermosetting polyurethane resin; One-component PU crosslinker; TDI-based blocked prepolymer; Polyurethane, 2-hydroxyethyl methacrylate-blocked
EINECS	Contact for details

Quality Control

Our 2-Oxepanone, Polymer With 1,3-Diisocyanatomethylbenzene, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2'-Oxybis[Ethanol], 2-Hydroxyethyl Methacrylate-Blocked is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including blocking agent content, free isocyanate (NCO) content, viscosity, solids content, and color to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Keep away from strong bases and incompatible materials such as organic solvents. The container must be kept tightly sealed to prevent moisture absorption, which can lead to premature reaction.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	Contact for details
Viscosity (at 25°C)	Contact for details
Blocking Agent Content	Contact for details
Free NCO Content	< 0.5%
Specific Gravity (at 25°C)	Contact for details

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