Description

Hexanedioic Acid, Polymer With 1,4-Butanediol, 1,6-Hexanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane, 2-Hydroxyethyl Acrylate-Blocked is a specialized, blocked polyurethane prepolymer designed for high-performance applications. This advanced material offers a unique combination of chemical resistance, durability, and controlled reactivity, making it a critical component in formulating next-generation coatings and adhesives. It is primarily sought by manufacturers in the automotive, industrial coatings, and specialty adhesive sectors who require materials that deliver exceptional performance under demanding conditions.

Application

• High-Performance Industrial Coatings: Used as a crosslinking agent in formulations for metal, plastic, and composite substrates requiring superior chemical, abrasion, and weathering resistance.
• Automotive OEM and Refinish Coatings: A key resin component for clearcoats, basecoats, and primers that demand excellent gloss retention, scratch resistance, and durability.
• Specialty Adhesives and Sealants: Imparts enhanced strength, flexibility, and environmental resistance in structural and assembly adhesives for aerospace, marine, and construction applications.
• UV-Curable Coating Systems: Serves as a reactive oligomer that, upon de-blocking and curing, contributes to the formation of dense, high-performance polymer networks with excellent mechanical properties.
• Plastic and Leather Finishes: Used in topcoats for consumer electronics, furniture, and synthetic leather to provide a durable, protective, and aesthetically pleasing surface.
• Corrosion-Resistant Primers: Formulated into primers for infrastructure, pipelines, and offshore structures where long-term protection against harsh environments is critical.

Basic Information

Item	Information
Product Name	Hexanedioic Acid, Polymer With 1,4-Butanediol, 1,6-Hexanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane, 2-Hydroxyethyl Acrylate-Blocked
CAS No.	123904-09-6
Molecular Formula	Polymeric substance; Contact for details
Molecular Weight	Polymeric substance; Contact for details
Synonyms	Blocked Polyurethane Prepolymer; HDI-based Blocked Prepolymer; Adipic Acid/Butanediol/Hexanediol/Isophorone Diisocyanate/2-HEA Polymer; IPDI/HDI Blocked Prepolymer; Acrylated Urethane Oligomer; UV-curable Polyurethane Resin; Thermolatent Polyurethane Hardener; Polyester Polyurethane Acrylate
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including measurement of NCO content (before blocking), blocking agent content, viscosity, color, and solids content, to ensure consistent performance and batch-to-batch reliability. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive). Protect from moisture ingress to prevent premature reaction and maintain product integrity. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	Contact for details
Viscosity (at 25°C)	Contact for details
Blocked NCO Content	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Moisture (Karl Fischer)	≤ 0.1 %

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