YDN525 High Imino Methylated Melamine Resin

Short Description:

Usage:Water-borne coatings, emulsion paints and other water-soluble baking coatings.

Product Detail

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YDN525 is a water-soluble methylated melamine-formaldehyde resin. It can partially dissolve in alcohols, polyols, fats, diethylene glycol e ther, and chlorinated solvents. It has good compatibility with film-forming substances such as short and medium oil alkyd resins, polyester resins, acrylic resins, epoxy resins, and cellulose. It is particularly compatible with water-based acrylic and polyester resins.

YDN525 can react with polymers containing hydroxyl, amide, and carboxyl groups. The low acid value of the matching main resin is sufficient to catalyze the cross-linking reaction, and rapid curing can be achieved without a strong acid catalyst. It can undergo self-condensation, and increasing the amino cross-linking agent content can increase the film hardness. Even at lower temperatures, YDN525 has a fast reaction rate. During baking, it can reduce the volatilization of low molecular weight resins in the system, with less weight loss and lower VOC volatilization, reducing exhaust emissions during coating and baking.

Coatings cross-linked with YDN525 have a low tendency to foam. It can improve the water resistance and salt spray resistance of water-borne coatings.


Appearance: Transparent to slightly yellow viscous liquid

Solvent: Isobutanol

pH (1:1): 8.0-9.5

Non-volatile content (%): 75-80 (105°C × 180 min)

Viscosity (mPa·s, NDJ viscometer, 30°C): 1000-3000

Free formaldehyde (% by weight): ≤1.0

Solubility: Partially soluble in water or isobutanol

Storage period (in shaded, ventilated space): 6 months.


The company has successively passed IATF 16949:2016 quality management system certification, ISO 9001:2015 quality management system certification, ISO 14001:2015 environmental management system certification, ISO 45001:2018 occupational health and safety management system certification, clean production acceptance certification, safety standard certification, and American UL certification.

 About US

Zhejiang Yadina New Material Technology Co., Ltd., formerly known as Jiaxing Hangxing Fine Chemical Co., Ltd., was established in 2002. It is a national high-tech enterprise integrating independent research and development, professional production and sales of modified melamine resin and melamine foam.

Besides the superior capability of water absorption, our melamine foam also has excellent sound and heat insulation capabilities as well. The material has been used not only in household cleaning, but much more in industrial fields, e.g. power battery insulation material, aerospace ultra-light materials, flame-retardant construction materials, acoustic materials, etc. With a complete and established quality management system, our company had been appraised by our customers in our high quality products and competitive pricing.

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