HDI closed Vencorex D2

HDI closed Vencorex D2



Blocked aliphatic polyisocyanate (HDI homopolymer), supplied at 75 % solids in aromatic solvent.


Colour≤40 HAZEN (APHA)
Viscosity at 25°C2500 – 4000 mPa.s
NCO (available after deblocking)11.2 ±0.5 %
Solids content75.0±2.0 %
Free NCO< 0.2 %

The analytical methods are available upon request

Physical Properties:

AppearanceClear liquid
Bulk density at 25°C1060 kg/m3 approx.
Weight per US gallon8.85 lbs approx.
Flash point (closed cup)49°C approx.
Equivalent weight (on delivery form)375 g approx.



Soluble in esters, ketones, aromatic hydrocarbons. In most cases, esters/aromatic hydrocarbon mixtures are used.


Tolonate™ D2 is typically used as a crosslinker of hydroxylated polymers notably polyesters and polyacrylates to prepare heat activated one component polyurethane systems for weatherable coatings giving excellent mechanical properties in conjunction with outstanding resistance to solvents, abrasion and chemical products. Tolonate™ D2 is commonly used in Automotive OEM formulations, can and coil coatings and other general industrial coatings on metal. The curing conditions are generally 20 to 40 minutes at 140-160°C (285-305°F) or 30 to 35 seconds at 320°C (PMT = 232 / 241°C).


Packaging and transport

Packaging (please contact our sales team for more details)

  • US origin: 215 kg net metallic drum
  • France origin: deliveries of 860 kg net weight pallets (4 drums of 215 kg netweight).
  • Other packaging: upon request


  • Regulated. For more precise details, please refer to the safety data sheet

Storage conditions and shelf-life:

  • Tolonate™ D2 is not affected by moisture at room temperatue.
  • Appropriate storage for two years does not normally affect Tolonate™ D2 in anyway if it is stored in its sealed original drums inusual storage condition, at temperatures bellow 40°C.

Flammability and safety instructions:

Before handling this product please refer to its safety data sheet

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Our Company Since its establishment, the company has adhered to the service tenet of “integrity-based, customer first”, adhered to customer demand as the focus, market-oriented, adhered to technological innovation, management innovation and service innovation, and constantly implemented lean production, refined management, to provide customers with better products and services! The company has its own factory, research and development base, set up a strict scientific quality management system, and constantly committed to technological innovation, product innovation and management innovation, so as to ensure that our products have a certain competitiveness in the same industry. The factory is located in Jining City, Shandong Province, China, covering an area of 500 acres, and the current production capacity of various types of amines is 5,000 to 10,000 tons per year. Our Advantages Strict Quality Management Our company strictly implements ISO9002 quality management standards and has established a complete quality management system to ensure the long-term stability of product quality. Efficient Service Our production is efficient and reliable, so we deliver on time and within delivery deadlines. At the same time, our team is always happy to help customers and strive to solve customer problems in a short time. Competitive Price We have long-term services in wholesale Polyurethane catalyst and have established long-term and stable cooperative relationships with many retailers and agents to provide our customers with reasonably priced products. OEM Available Our employee team has high R&D capabilities, superb design and development capabilities, skilled manufacturing technology, and rich product application experience, and can also meet OEM business needs.throughout the entire industry chain.
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