Block isocyanate suitable for curing at 140-180°C in HDI-based solutions.
Blonate 1921V is a blocked isocyanate with HDI trimer blocked by phenol. It is a non-yellowing type and can cure at low temperatures by using a catalyst. **Features** - HDI-based, phenol-blocked - Non-yellowing type - Curing temperature can be lowered by utilizing a catalyst *For more details, please download the PDF or feel free to contact us.*
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basic information
【Specifications】 ■ Main Component: Phenol Block Isocyanate ■ Appearance: Light yellow liquid ■ Active Ingredient: 70% ■ NCO%: 9.8% ■ Solvent: Butyl Acetate ■ Viscosity: 720 mPa·s (25℃) ■ Curing Temperature Range: 130–190℃ (can be lowered with catalyst) * Curing characteristics can vary significantly depending on the type of polyol used and the presence of a catalyst.
Price information
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Delivery Time
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Applications/Examples of results
【Examples of Use】 - Hardener for industrial baked coatings - Coating agents that emphasize yellowing resistance - Heat-curing adhesives, adhesives for laminating - One-component formulation that adjusts curing conditions based on catalyst amount
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Company information
Blonate Co., Ltd. is a urethane chemicals manufacturer engaged in the development, production, and sale of blocked polyisocyanates and functional urethane prepolymers. In addition to standard products designed for specific applications and curing conditions, including low-temperature curing, yellowing resistance, rapid curing, and extended pot life, we also develop alternatives for discontinued or difficult-to-source products and provide customized products tailored to individual requirements. We provide comprehensive support covering formulation studies, laboratory-scale prototyping, scale-up, small- to medium-scale production, and physical property evaluation. Customers are welcome to consult us from the small-lot development stage regarding technical challenges involving adhesives, coatings, crosslinking agents, molding materials, and other applications.
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