Description

1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 1,3-diisocyanatomethylbenzene, 1,1-methylenebis4-isocyanatobenzene, 4,4-(1-methylethylidene)bisphenol, methyloxirane and oxirane, Me Et ketone oxime-blocked is a specialized, blocked polyurethane prepolymer designed for high-performance coating systems. This advanced chemical offers a unique combination of stability and reactivity, enabling the formulation of durable, cross-linked films with excellent chemical and mechanical resistance. It is an essential raw material for industrial manufacturers seeking to develop premium, one-component (1K) polyurethane coatings, adhesives, and sealants that cure upon heating.

Application

• One-Component (1K) Polyurethane Coatings: Serves as the primary resin component in heat-curable industrial and protective coatings for metal, plastic, and wood substrates.
• Automotive OEM and Refinish Paints: Used in high-gloss, durable clearcoats and pigmented topcoats requiring excellent weatherability and chemical resistance.
• Industrial Maintenance & Marine Coatings: Formulated into heavy-duty protective coatings for infrastructure, pipelines, and marine vessels exposed to harsh environments.
• Plastic Coatings: Provides adhesion and flexibility for coatings on automotive parts, consumer electronics, and other plastic components.
• Adhesives and Sealants: Acts as a key ingredient in high-performance, heat-activated adhesives and elastic sealants.
• Coil and Can Coatings: Utilized in formulations for pre-coated metal (coil) and food/beverage can linings, offering excellent formability and barrier properties.
• Wire and Cable Enamels: Employed in insulating varnishes and coatings that require thermal stability and electrical properties.

Basic Information

Product Name	1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 1,3-diisocyanatomethylbenzene, 1,1-methylenebis4-isocyanatobenzene, 4,4-(1-methylethylidene)bisphenol, methyloxirane and oxirane, Me Et ketone oxime-blocked
CAS No.	216101-55-2
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolyme; MEKO-blocked Polyurethane Resin; Oxime-blocked Polyisocyanate; Polyurethane Crosslinker, blocked; 1K PU Resin; Thermally Curable Polyurethane; TMP/Neopentyl Glycol based blocked prepolymer; Aliphatic/Aromatic Polyurethane Resin
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as blocked isocyanate content, viscosity, solids content, and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all specification results is provided with each shipment to support your quality assurance and formulation 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). 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. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 ± 2 %
Viscosity (at 25°C)	Contact for details
Blocked NCO Content	Contact for details
Solvent (Typical)	Methyl Ethyl Ketone / Xylene blend

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