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I. Composition and Properties
This resin is a copolymer of functional monomers and (meth)acrylate monomers, using ethylene glycol ethyl ether as a solvent. It exhibits good water solubility, excellent pigment wetting properties, good compatibility with water-based amino resins, and excellent workability. The resulting paint film possesses excellent gloss, fullness, hardness, and chemical resistance, making it suitable for water-soluble solid color paints and topcoat varnishes.
II. **Product Technical Specifications**
1. Appearance: Light yellow and transparent, free of mechanical impurities.
2. Color: <1
3. Viscosity (Grifrick, 25℃), seconds: Z1-Z4
4. Solids (150℃, 1h), %: 70±2
5. Acid Value (solution, mgKOH/g): 35-50
III. **Applications**
A-373 resin is mainly used in conjunction with (partially) methylated amino resins. After neutralization with a neutralizing agent, it is used to produce water-based paints or varnishes for use in large-barrel paints, security doors, electric vehicles, and other engineering vehicle paints.
IV. 【Reference Formulation for Clear Varnish】
A-373 54
Dimethylethanolamine 4.6
Amino 625 16
Leveling Agent (Digo 425) 0.2
Anti-oil Agent (Digo 500) 0.2
Co-solvent (ethanol/PM/DPM=4/3/3) 15
Deionized Water 10
Notes:
1. Adjust the pH of A-373 to 7-7.5 by adding DMEA. 10-15% deionized water can be added for spraying. However, to ensure the surface finish and gloss, it is generally recommended to use appropriate amounts of co-solvents such as ethanol/butanol, BCS/DPM, etc., for spraying.
2. The above clear varnish, when baked at 150℃-160℃ for 15-30 minutes, will produce a film with excellent gloss and hardness.
This information is for reference only and does not guarantee its properties. Please conduct prior experiments to ensure it suits your specific requirements.
Nantong Baisen Chemical Co., Ltd
Wang Hongfei：8613901470336
Sun Chenglong：8613921132449
python@baisenhg.com
Rudong County Chemical Industry Agglomeration Zone, Jiangsu Province, China