Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Allnex CYMEL U-21-510 Amino Resin

Allnex CYMEL U-21-510 is a high-reactivity methylated melamine-formaldehyde amino resin from the CYMEL® series, engineered for superior crosslinking in solventborne and UV-curable coatings, offering excellent hardness, chemical resistance, and gloss retention with low curing temperatures.
  • allnex cymel u 21 510 amino resin_bc754745
  • allnex cymel u 21 510 amino resin_bc754745

Features Of Allnex CYMEL U-21-510 Amino Resin

  1. Highly reactive melamine-formaldehyde resin offering excellent crosslinking efficiency at low curing temperatures.

  2. Low formaldehyde emission profile, supporting compliance with stringent VOC and emissions regulations.

  3. Excellent compatibility with acrylic, polyester, and alkyd resins in solventborne and high-solids coating systems.

  4. Provides superior hardness, chemical resistance, and gloss retention in thermoset coatings.

  5. Stable storage life under recommended conditions (cool, dry, well-ventilated environment).

Typical Applications Of Allnex CYMEL U-21-510 Amino Resin

  1. Automotive OEM and refinish topcoats requiring high durability and appearance performance.

  2. Industrial metal coatings for appliances, furniture, and HVAC components.

  3. Can and coil coatings where rapid cure and excellent corrosion resistance are critical.

  4. General-purpose baking enamels for metal substrates in architectural and consumer goods applications.

  5. High-solids industrial maintenance coatings demanding reduced energy consumption during cure.

Specifications Of Allnex CYMEL U-21-510 Amino Resin

Chemical TypeMelamine-formaldehyde crosslinker
Product FormLiquid
AppearanceClear to slightly hazy, colorless to pale yellow liquid
Solvent ContentApprox. 60–65 wt% (proprietary blend of aromatic hydrocarbons and alcohols)
Non-Volatile Content35–40 wt%
Viscosity (25°C)100–300 mPa·s
Acid Number< 5 mg KOH/g
Primary ApplicationsBaking finishes for metal substrates


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