Description

Hexane, 1,6-Diisocyanato-, Homopolymer, Di-Et Malonate- And Et Acetoacetate-Blocked is a blocked polyisocyanate crosslinker, a key intermediate in the formulation of high-performance, single-component (1K) coating and adhesive systems. This product matters because it provides latent reactivity, enabling stable formulations that cure upon heating to release the active isocyanate groups, which then react with polyols to form durable polyurethane networks. Industries that need this specialized chemical include automotive OEM and refinish coatings, industrial maintenance paints, coil coatings, and the production of advanced adhesives and sealants, where controlled curing and excellent film properties are required.

Application

• Automotive OEM and Refinish Coatings: As a crosslinker in high-gloss, weather-resistant clearcoats and pigmented topcoats.
• Industrial Maintenance Paints: For formulating protective coatings for metal structures, pipelines, and industrial equipment requiring chemical and abrasion resistance.
• Coil Coatings: Used in prepainted metal sheets for architectural and appliance applications, providing excellent flexibility and durability.
• Plastic Coatings: Enhances adhesion and performance on automotive plastic parts and consumer electronics.
• Adhesives and Sealants: Serves as a latent hardener in moisture-curing polyurethane hot-melt adhesives and high-performance sealants.
• Wood Finishes: For furniture and flooring coatings that require fast curing cycles and superior hardness.
• Corrosion Protection Primers: Formulated into primers that offer excellent substrate wetting and corrosion inhibition.

Basic Information

Product Name	Hexane, 1,6-Diisocyanato-, Homopolymer, Di-Et Malonate- And Et Acetoacetate-Blocked
CAS No.	103818-85-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	HDI-Blocked Crosslinker; Blocked HDI Polyisocyanate; HDI Trimer, Malonate/Acetoacetate Blocked; Poly(hexamethylene diisocyanate), blocked with diethyl malonate and ethyl acetoacetate; Acetoacetate/Malonate-Blocked Polyisocyanate; Latent HDI Hardener; 1,6-Diisocyanatohexane Homopolymer Blocked; Thermoactivated Polyurethane Crosslinker
EINECS	Contact for details

Quality Control

Our blocked polyisocyanate crosslinkers are manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of blocked isocyanate content, viscosity, color, and deblocking temperature. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent contact with atmospheric moisture, which can lead to premature reaction and reduced potency.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Blocked NCO Content	Contact for details
Viscosity (at 25°C)	Contact for details
Color (Gardner)	≤ 2
Deblocking Temperature	Contact for details
Solids Content	Contact for details

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