Description

Hexanedioic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 3-hydroxy-2-(hydroxymethyl)propanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, caprolactam-blocked, compd. with 2-(dimethylamino)ethano is a specialized blocked polyisocyanate crosslinker designed for high-performance coating systems. This advanced polymer offers a unique balance of reactivity, stability, and final film properties, making it a critical component for formulators seeking enhanced durability and processing control. It is primarily utilized in industrial and automotive coatings where superior chemical resistance, mechanical strength, and controlled cure profiles are essential.

Application

• Automotive OEM and Refinish Coatings: As a key crosslinking agent in high-gloss clearcoats and pigmented basecoats, providing excellent weather resistance, scratch resistance, and chemical stability.
• Industrial Maintenance Coatings: Used in heavy-duty protective coatings for steel structures, pipelines, and industrial equipment, offering outstanding corrosion and abrasion resistance.
• Plastic Coatings: Formulated into coatings for automotive plastics and consumer electronics, ensuring strong adhesion, flexibility, and a high-quality finish.
• Coil Coatings: Employed in pre-coated metal sheets for architectural and appliance applications, delivering durability, formability, and color retention.
• Adhesives and Sealants: Serves as a crosslinker in high-performance polyurethane adhesives, enhancing bond strength, thermal stability, and environmental resistance.
• Wood Finishes: Incorporated into high-end furniture and flooring finishes to achieve tough, clear films with excellent resistance to solvents and household chemicals.

Basic Information

Item	Details
Product Name	Hexanedioic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanol, 3-hydroxy-2-(hydroxymethyl)propanoic acid and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, caprolactam-blocked, compd. with 2-(dimethylamino)ethano
CAS No.	109159-26-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked polyisocyanate crosslinker; Caprolactam-blocked HDI trimer derivative; Polyurethane crosslinking agent; HDI-based blocked polyisocyanate; IPDI/HDI hybrid blocked crosslinker; Polyester polyol modified blocked isocyanate; Amino-neutralized blocked polyisocyanate resin.
EINECS	Contact for details

Quality Control

Our blocked polyisocyanate crosslinker is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent performance, including measurement of blocked isocyanate content, viscosity, solids content, and color. We provide full traceability and a Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our production adheres to ISO 9001 standards, and the product is compliant with global regulatory frameworks such as 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). Keep the container tightly sealed when not in use to prevent moisture absorption, which can lead to premature reaction and gelation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 ± 2 %
Viscosity (25°C)	2000 - 5000 mPa·s
Blocked NCO Content	Contact for details
Specific Gravity (25°C)	1.10 - 1.20
Flash Point	> 100 °C

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