Shanghai Holdenchem CO.,Ltd.

上海浩登材料股份有限公司

Shanghai Holdenchem CO.,Ltd.

Supplier of special and functional chemicals

Preferred supplier of Fortune 500 companies

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Shanghai Holdenchem Co., Ltd.
Hotline: 400-011-7633
Fax: +86-21-62112613
E-mail: sales@holdenchem.com

Isocyanate series

HD-8305

Properties

Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate for curing agents in water-based two-component polyurethane systems.

Physical property Theoretical value
Viscosity(25℃) 4500-6500 mPa•s
ω (-NCO) /% 15.7-16.7%
Hazen color value ≤150
HDI monomer content <0.15
Solid content (%) 100%

Hodhyate® 8305 is generally compatible with the following organic solvents: eg esters, ether esters, xylenes and solvent naphtha 100. However, the solubility/miscibility of the solution must be tested in any case. Use polyurethane grade solvent (water content <0.05%).

Hydrophilic isocyanate is very sensitive to moisture and forms carbon dioxide and insoluble urea with water. The container must be kept well at all times. Any form of moisture (moisture solvents and moisture-containing substances) must be avoided because the carbon dioxide produced by the reaction with water can cause Container pressure rises, color darkens and Viscosity increases.

Storage Store in a sealed container; recommended storage temperature: 0-30 °C; avoid strong moisture, heat and foreign substances; storage period: 6 months
Application Hodhyate® 8305 is a crosslinker for water-based coatings. It is especially suitable for use in the civilian sector where it can be mixed and shaken by hand or by hand. Even under pre-dilution conditions, the film is transparent and bright. The mixing ratio with the curing agent is usually 10:1.
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