Tolonate HDB
Tolonate HDB is a solvent-free, viscous aliphatic polyisocyanate based on hexamethylene diisocyanate biuret.
Description
Product Overview
Tolonate™ HDB is a solvent-free, viscous aliphatic polyisocyanate based on hexamethylene diisocyanate biuret.
| Appearance | Clear, transparent liquid |
| Solid content | Approx. 100% |
| Density(25°C) | Approx.1120 kg/m³ |
| Weight per gallon | Approx. 9.35 lbs |
| Flash point (closed cup) | >120°C |
| Equivalent weight (as supplied) | Approx. 191 g |
Product Applications
Tolonate™ HDB is commonly used as a crosslinking agent for hydroxyl-containing polymers, especially polyester and polypropylene polyols, to formulate two-component polyurethane coatings or elastomers. It offers outstanding outdoor durability and mechanical properties, combined with excellent solvent resistance, abrasion resistance, and chemical resistance.
Main applications of Tolonate™ HDB include automotive coatings, engineering machinery coatings, and plastic coatings. It can also be used in resin synthesis.
Tolonate™ HDB contains no diluent solvent, providing high formulation flexibility.
Performance Specifications
| Item | Unit | Specification |
| Color (Pt-Co) | — | ≤40 |
| Viscosity (25°C) | mPa·s | 7000–11000 |
| Mass fraction of isocyanate groups (-NCO) | % | 21.00–23.00 |
| Mass fraction of HDI monomer | % | <0.30 |
Packaging
225 kg steel drum Customized packaging is available upon customer request.
Storage and Handling Precautions
Tolonate™ HDB is sensitive to moisture. It should be stored at room temperature in its original packaging or containers protected by dry nitrogen.
Recommended storage temperature: 0–30°C.
Compatibility
Soluble in esters, ketones, and aromatic hydrocarbons. In most cases, mixed solvents of esters and aromatic hydrocarbons are used.
It is recommended to dilute with urethane-grade solvents (water content below 300 ppm). The diluted solid content shall not be lower than 40%; otherwise, turbidity, precipitation, or even gelation may occur.
Shelf Life
Tolonate™ HDB has a shelf life of two years when stored in its original unopened packaging at 25°C.
For information on safety and environmental protection, please refer to the Safety Data Sheet (SDS) of our product or contact our Customer Service Center.
Version Information
First issued: June 25, 2025 Version: V 1.0
The data and specifications provided herein are based on our current technical knowledge and practical experience and are for reference only. The actual guaranteed specifications shall be subject to the Quality Certificate or the supply contract. Users are responsible for testing the purchased products of our company to verify their suitability for the intended processes and applications to achieve the desired results. Further applications and processing of our products are beyond our control. Therefore, our liability is limited to the portion of our products delivered to and used by you. We shall not be liable for any indirect losses incurred in the production process using our products as raw materials.
Our Marketing Department Technical Support and Customer Service Center are ready to provide product consultation and application technology services. Welcome to contact us via letter or telephone.
Company Name: Wanhua Energysav Science&technology Group Co.,Ltd
Address: No. 127, Changjiang Road, YEDA, Yantai, Shandong Province, China
Contact person: Vivin Yi
Email: wanhuachemical@outlook.com
WhatsAPP: +86 17761309662
Tel: +86 17761309662
Wechat: yivonnie
Additional information
| Weight | 25 kg |
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