CYMEL® 303 ULF resin is a highly methylated, monomeric melamine crosslinker supplied in liquid form. It enables the formulating of coatings with very low free formaldehyde. Its high extent of alkylation and low tendency to self-condense makes this product a highly effective crosslinking agent for a broad range of applications such as can, container, automotive, and general industrial coatings. While CYMEL® 303 ULF resin is insoluble in water, it shows excellent compatibility with water-soluble backbone polymers and provides very good stability in amine-stabilized waterborne formulations.
Crosslinkers are used with epoxy, polyester, acrylic and alkyd resins and provide the desired balance of flexibility, exterior durability, chemical resistance and film toughness. CYCAT® acid catalysts enhance crosslinking for low acid-containing polymers and lower-temperature applications. The new CYMEL® NF formaldehyde-free crosslinkers are ideal for applications where formaldehyde emissions are a concern.
METHYLATED HIGH IMINO MELAMINE RESIN WITH A LOW DEGREE OF ALKYLATION