Description

Benzene, 1,3-Diisocyanatomethyl-, Trimer is a high-performance, cyclic trimer of isophorone diisocyanate (IPDI), known for its excellent chemical resistance and durability. This specialized polyisocyanate is a critical building block for formulating advanced, high-solids polyurethane coatings and adhesives with superior weatherability and mechanical properties. It is essential for manufacturers in the industrial coatings, automotive refinish, and specialty adhesives sectors seeking to enhance product performance and longevity.

Application

• High-Performance Polyurethane Coatings: A key cross-linking agent in two-component (2K) polyurethane systems for industrial, automotive, and aerospace coatings requiring exceptional gloss retention, chemical resistance, and UV stability.
• Advanced Adhesives and Sealants: Used to formulate high-strength, flexible adhesives and sealants for construction, transportation, and composite bonding applications.
• Elastomers and Casting Resins: Serves as a hardener component in the production of polyurethane elastomers, rollers, and casting resins that demand toughness and abrasion resistance.
• Powder Coatings: Incorporated into powder coating formulations as a cross-linker to improve flow, finish quality, and durability for metal substrates.
• Corrosion-Resistant Primers: A vital component in heavy-duty anti-corrosion primer systems for marine, offshore, and infrastructure protection.
• Wood and Furniture Finishes: Enhances the hardness, scratch resistance, and clarity of topcoats for premium wood and furniture finishes.

Basic Information

Product Name	Benzene, 1,3-Diisocyanatomethyl-, Trimer
CAS No.	9019-85-6
Molecular Formula	C36H54N6O6
Molecular Weight	666.85 g/mol
Synonyms	IPDI Trimer; Isophorone Diisocyanate Trimer; 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl Isocyanate Trimer; Cyclic Trimer of IPDI; Polyisocyanate based on IPDI; Vestanat® T 1890/100; Desmodur® Z 4470 BA; Tolonate™ HDT LV
EINECS	Contact for details

Quality Control

Our Benzene, 1,3-Diisocyanatomethyl-, Trimer is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including assay (NCO content), viscosity, color, and monomer content, to ensure consistency and compliance with industry specifications. Certificates of Analysis (COA) documenting full batch-specific results are available upon request.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive). Keep away from strong bases, amines, alcohols, and water to prevent premature polymerization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (NCO Content)	11.8 - 12.2 %
Viscosity (23°C)	2500 - 3500 mPa·s
Color (Gardner)	≤ 2
Monomer (IPDI) Content	≤ 0.5 %
Specific Gravity (20°C)	1.06 - 1.08
Flash Point	> 100 °C

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