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By certification 
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
|
Item |
Standard index |
Testing standard |
|
|
A81 |
A101 |
||
|
appearance |
white or light yellow transparent solid |
|
|
|
softening point ℃ |
85~105 |
100~130 |
DIN(53180) |
|
chromaticity(iodine colorimetry) |
≤1 |
≤1 |
DIN(6162) |
|
acid value(mgkoH/g) |
≤2 |
≤2 |
DIN(53402) |
|
hydroxyl value(mgKOH/g) |
40~70 |
40~70 |
ISO4629 |
Uses
This product is mainly used coating industry, printing ink industry and adhesion agent field.
