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Coatings Ingredients
The material selection platform
Coatings Ingredients
by SpecialChem
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CYMEL® 251 resin

Technical Datasheet | Supplied by allnex
CYMEL® 251 resin by allnex is a novel melamine-formaldehyde cross-linking agent of the mixed ether class. It possesses a lower level of alkylation then other mixed ethers, thus improving its adaptability to water-borne coating formulations. Water-borne systems based on CYMEL® 251 resin exhibit rapid cure response with improved water resistance compared with coatings based on conventional methylated melamine resins. In addition, coatings containing this additive maintain the excellent appearance properties characteristic of mixed ether crosslinkers. Also suitable for low viscosity/high solids system. Recommended for automotive basecoats and general industrial water-reducible formulations. The shelf life of this resin is 18 months.
Product Type
Crosslinking / Coupling / Curing Agents > Amines > Melamine-formaldehydes
Chemical Composition
Melamine-formaldehyde resin
Physical Form
Product Status
Geographical Availability
Asia / Pacific
Applications/ Recommended for
  • Coatings > Waterborne
  • Coatings > Solvent-Free/ High-Solids
  • Coatings Markets > General Industrial /Maintenance
  • Coatings Markets > Automotive OEM > Top coats > Basecoats

CYMEL® 251 resin Properties


Value & Unit
Test Condition
Test Method
Non-volatile Content
78 - 82 %
(By Weight. Pan. 180 min/105°C)
V - Z3
(At 25°C.Gardner Holdtz Method)
Free Formaldehyde Content
< 1.3 %
ISO 11402
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