Description

Hexanedioic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane, 2-Hydroxyethyl Acrylate-Blocked is a specialized, blocked polyurethane prepolymer designed for advanced coating and adhesive formulations. This product matters because it provides a latent, thermally-activated crosslinking mechanism, enabling the formulation of high-performance, one-component (1K) systems with excellent shelf stability. Industrial manufacturers in the automotive, industrial maintenance, and specialty plastics coatings sectors need this chemical to develop durable, chemical-resistant finishes and structural adhesives with simplified application processes.

Application

• One-Component (1K) Polyurethane Coatings: Serves as the primary crosslinker in high-solids, solvent-borne, and powder coatings for automotive OEM, refinish, and industrial maintenance applications.
• Thermally-Curable Adhesives and Sealants: Used in formulating structural and assembly adhesives for the transportation, aerospace, and construction industries, where heat activation is required.
• Wire Enamels and Electrical Insulation: Imparts thermal stability and dielectric properties to insulating varnishes for motors, transformers, and electrical components.
• Plastic and Composite Coatings: Provides excellent adhesion and flexibility for coatings on engineering plastics and fiber-reinforced composites.
• Corrosion-Resistant Primer Formulations: Enhances the durability and chemical resistance of primer systems for metal substrates in harsh environments.
• UV/EB-Curable Hybrid Systems: Can be incorporated into dual-cure systems that combine the speed of radiation curing with the performance of polyurethane chemistry.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane, 2-Hydroxyethyl Acrylate-Blocked
CAS No.	82339-15-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolymer; HDI-based Blocked Isocyanate; Adipic Acid/Neopentyl Glycol/Isophorone Diisocyanate/2-Hydroxyethyl Acrylate Polymer; Blocked IPDI-HDI Hybrid Prepolymer; Acrylate-Blocked Aliphatic Polyisocyanate; Thermally Reactive Polyurethane Resin; 1K PU Crosslinker; CAS 82339-15-9
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to stringent quality management protocols. Every batch undergoes rigorous testing for critical parameters including blocked isocyanate content, viscosity, color, and deblocking temperature to ensure consistent performance in your formulations. Certificates of Analysis (COA) detailing these specifications are provided with each shipment. Our quality system is designed to support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C / 59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent exposure to atmospheric moisture, which can lead to premature reaction and gelation. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Viscosity (at 25°C)	Contact for details
Blocked NCO Content	Contact for details
Solid Content	Contact for details
Deblocking Onset Temperature	Contact for details

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