Description

Hexane, 1,6-Diisocyanato-, Homopolymer, 3,5-Dimethyl-1H-Pyrazole-Blocked is a blocked polyisocyanate prepolymer, a key latent curing agent used in high-performance coating and adhesive systems. This product matters because it provides a stable, one-component system that cures upon heating, releasing the blocking agent and enabling cross-linking without the handling hazards of free isocyanates. It is essential for manufacturers in the automotive, industrial coating, and electronics industries requiring durable, chemical-resistant finishes with excellent shelf stability.

Application

• One-Component (1K) Polyurethane Coatings: As a latent cross-linker for automotive OEM and refinish paints, industrial maintenance coatings, and plastic coatings.
• Powder Coatings: Serving as a curing agent that activates during the baking process, providing excellent flow and film properties.
• High-Performance Adhesives & Sealants: Used in formulations requiring enhanced thermal and chemical resistance upon cure.
• Wire Enamels and Electrical Insulation: Providing thermal stability and dielectric properties for magnet wire and electronic component coatings.
• Textile and Leather Finishes: Imparting durability, water repellency, and flexibility to coated fabrics.
• Composite Materials: Acting as a matrix resin or cross-linking agent in fiber-reinforced plastics (FRP).

Basic Information

Product Name	Hexane, 1,6-Diisocyanato-, Homopolymer, 3,5-Dimethyl-1H-Pyrazole-Blocked
CAS No.	163206-31-3
Molecular Formula	(C15H22N4O2)n
Molecular Weight	Varies (Polymer)
Synonyms	HDI-Biuret blocked with 3,5-Dimethylpyrazole; Poly(hexamethylene diisocyanate) blocked with 3,5-dimethylpyrazole; DMP-blocked HDI polyisocyanate; Blocked HDI polyisocyanate; 3,5-Dimethylpyrazole-blocked HDI homopolymer; HDI trimer blocked with DMP; Latent polyisocyanate curing agent; Vestagon B 1060 (example trade name)
EINECS	Contact for details

Quality Control

Our production of blocked polyisocyanates adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as blocked isocyanate content, viscosity, color, and deblocking temperature are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance specifications is provided with every shipment to support your quality assurance and formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep container tightly sealed when not in use to prevent moisture absorption, which can lead to premature reaction or gelation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Blocked NCO Content	10.0 - 12.0 %
Viscosity (25°C)	2000 - 5000 mPa·s
Color (Gardner)	≤ 2
Solid Content	≥ 70 %
Deblocking Temperature (Onset)	~130 - 150 °C
Moisture (KF)	≤ 0.1 %

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