Description

Hexane, 1,6-Diisocyanato-, Homopolymer, Polyethylene-Polypropylene Glycol Mono-Bu Ether-Blocked is a specialized, blocked polyisocyanate prepolymer designed for controlled reactivity in demanding formulations. This product is a key crosslinking agent that provides excellent mechanical properties and chemical resistance to final coatings and adhesives. It is essential for manufacturers in the polyurethane coatings, sealants, and adhesive industries seeking to enhance product performance and shelf-life stability.

Application

• High-Performance Polyurethane Coatings: Used as a crosslinker in two-component (2K) polyurethane systems for industrial, automotive, and protective coatings, providing durability and chemical resistance.
• Adhesives and Sealants: Serves as a key component in moisture-cure and heat-activated polyurethane adhesives and sealants, offering strong bonding and flexibility.
• Elastomers and Castables: Employed in the production of polyurethane elastomers, providing toughness and resilience for industrial parts and components.
• Textile and Leather Finishes: Used in coatings for textiles and synthetic leather to impart water resistance, abrasion resistance, and a soft hand feel.
• Fiberglass Sizings and Binders: Acts as a binder in fiberglass reinforcements, enhancing the interfacial adhesion between the glass fibers and the polymer matrix.
• Blocked Isocyanate Systems: Its blocked nature allows for one-pack (1K) formulations with extended pot life, which cure upon exposure to heat, making it ideal for powder coatings and pre-polymer applications.

Basic Information

Product Name	Hexane, 1,6-Diisocyanato-, Homopolymer, Polyethylene-Polypropylene Glycol Mono-Bu Ether-Blocked
CAS No.	125252-47-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked HDI-based polyisocyanate; Poly(hexamethylene diisocyanate) blocked with polyethylene-polypropylene glycol monobutyl ether; HDI homopolymer, blocked; Blocked polyisocyanate prepolymer; Polyurethane crosslinker, blocked; Thermolabile blocked polyisocyanate; 1,6-Diisocyanatohexane homopolymer, polyethylene-polypropylene glycol monobutyl ether-blocked; HDI-Blocked prepolymer
EINECS	Contact for details

Quality Control

Our production of this blocked polyisocyanate adheres to rigorous quality control protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content (blocked), viscosity, solids content, and deblocking temperature are strictly monitored. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing all relevant specifications to support your quality assurance processes.

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 contact with atmospheric moisture, which can lead to premature reaction and gelation.

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
Deblocking Temperature	Contact for details
Specific Gravity (at 25°C)	Contact for details

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