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A81Urea-formaldehyde resin is colorless transparent to light yellow fatty aldehyde hard resin. It is suitable for solvent type coating, printing ink, non-solvent type coating, powdery coating and resin modified system. A81 can improve film yellow resistance, shorten drying time, promote hardness and fullness.
Performance parameter
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Item
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Standard index
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Testing standard
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A81
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A101
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appearance
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white or light yellow transparent solid
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|
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softening point ℃
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85~105
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100~130
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DIN(53180)
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chromaticity(iodine colorimetry)
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≤1
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≤1
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DIN(6162)
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acid value(mgkoH/g)
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≤2
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≤2
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DIN(53402)
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hydroxyl value(mgKOH/g)
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40~70
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40~70
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ISO4629
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Uses
This product is mainly used coating industry, printing ink industry and adhesion agent field.