Block isocyanate suitable for curing at 110 to 160°C in HDI-based solutions.
Blonate 1621V is a blocked isocyanate that blocks HDI trimer with oxime. It is suitable as a hardener for powder coatings. 【Features】 ■ HDI-based, oxime blocked ■ Solution type with 70% active ingredient ■ Usable as a hardener for powder coatings * For more details, please download the PDF or feel free to contact us.
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basic information
【Specifications】 ■ Main Component: Oximoblock Isocyanate ■ Appearance: Pale yellow liquid ■ Active Ingredient: 70% ■ NCO%: 9.9% ■ Solvent: Butyl Acetate ■ Viscosity: 430 mPa·s (25℃) ■ Curing Temperature Range: 150–160℃ * Curing characteristics can vary significantly depending on the type of polyol used and the presence of catalysts.
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 - Surface treatment agents for films and sheets - One-component paint using HDI-based block isocyanates
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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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