Description

Castor oil, polymer with TDI and trimethylolpropane is a polyurethane prepolymer derived from renewable castor oil, toluene diisocyanate (TDI), and trimethylolpropane (TMP). This versatile polymer is valued for its excellent adhesion, flexibility, and chemical resistance, making it a crucial component in high-performance coatings and adhesives. It is primarily needed by manufacturers in the coatings, sealants, elastomers, and adhesive industries seeking to enhance product durability and environmental profile. The compound is also known as castor oil, toluenediisocyanate, trimethylolpropane polymer or a castor oil, trimethylolpropane, toluenediisocyanate terpolymer.

Application

• High-performance Polyurethane Coatings: Used as a key resin in two-component (2K) polyurethane coatings for industrial maintenance, marine, and automotive refinish applications, providing excellent gloss retention and chemical resistance.
• Flexible Adhesives and Sealants: Serves as a prepolymer in the formulation of flexible, moisture-curing adhesives and sealants for construction, automotive, and packaging industries.
• Elastomer Production: Acts as a building block for casting polyurethane elastomers used in rollers, wheels, and impact-absorbing components.
• Wood Finishes and Varnishes: Imparts superior durability, scratch resistance, and water repellency to wood coatings for furniture and flooring.
• Corrosion-Resistant Primers: Formulated into primers for metal substrates, offering strong adhesion and a barrier against corrosion.
• Specialty Binders: Utilized as a binder in composite materials and specialty inks where toughness and flexibility are required.

Basic Information

Product Name	Castor oil, polymer with TDI and trimethylolpropane
CAS No.	68413-02-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Castor oil, toluenediisocyanate, trimethylolpropane polymer; Castor oil, trimethylolpropane, toluenediisocyanate terpolymer; TDI-TMP-Castor oil prepolymer; Polyurethane prepolymer from castor oil, TDI, and TMP; Castor oil-TDI-TMP adduct; TDI-trimethylolpropane-castor oil copolymer; Urethane modified castor oil polymer; Castor oil based polyurethane resin
EINECS	Contact for details

Quality Control

Our Castor oil, polymer with TDI and trimethylolpropane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as NCO content, viscosity, and color. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C / 59-77°F). This product is hygroscopic (moisture-sensitive); prolonged exposure to atmospheric moisture will lead to premature curing and increased viscosity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 4
NCO Content (%)	Contact for details
Viscosity (cP @ 25°C)	Contact for details
Solids Content (%)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Moisture Content (Karl Fischer)	≤ 0.1%

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