Description

Formaldehyde, Polymer With 1,3-Diisocyanatomethylbenzene, 2,2-(Methylimino)Bisethanol, Oxirane And 1,2-Propanediol, Methanol-Blocked is a specialized blocked polyurethane prepolymer designed for controlled reactivity and enhanced shelf stability. This product matters for formulators seeking a high-performance, latent curing agent that activates upon heating, enabling precise processing in demanding applications. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries who require robust, chemically resistant, and durable final products.

Application

• High-Performance Coatings: Used as a crosslinker in industrial, automotive, and coil coatings requiring excellent chemical, abrasion, and weather resistance.
• Adhesives & Sealants: Serves as a key component in structural adhesives and sealing compounds, providing strong bonds and flexibility.
• Elastomers and Casting Resins: Employed in the production of polyurethane elastomers, gaskets, and molded parts with superior mechanical properties.
• Textile & Leather Finishing: Used to impart durable water repellency (DWR), stiffness, and other functional finishes.
• Fiber-Reinforced Composites: Acts as a matrix resin or binder in composite materials for the automotive and aerospace sectors.
• Electrical Encapsulation: Suitable for potting and encapsulating electronic components due to its good electrical insulation and adhesion.

Basic Information

Product Name	Formaldehyde, Polymer With 1,3-Diisocyanatomethylbenzene, 2,2-(Methylimino)Bisethanol, Oxirane And 1,2-Propanediol, Methanol-Blocked
CAS No.	95649-09-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolyme; Methanol-blocked TDI-based polyurethane prepolymer; Blocked isocyanate crosslinker; Formaldehyde polymer with 1,3-diisocyanatomethylbenzene, 2,2'-(methylimino)bis[ethanol], oxirane and 1,2-propanediol, methanol-blocked; Toluene diisocyanate (TDI) blocked prepolymer; Polyurethane crosslinking agent; Latent curing agent; Thermosetting resin.
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analysis, including measurement of blocked isocyanate content, viscosity, solids content, and deblocking temperature. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance protocols.

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). Keep away from heat, sparks, and open flame. Moisture must be excluded to prevent premature reaction. Under these conditions, the product maintains optimal stability.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 4
Solids Content	70 - 75 %
Viscosity (25°C)	2000 - 5000 mPa·s
Blocked NCO Content	8.0 - 10.0 %
Deblocking Temperature	Approx. 130 - 150 °C
Identification (IR)	Conforms

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