Curing Agent Mb55

These Curing Agent MB55 is the salts of polycarboxylic acid with Cyclic amidine. The hardener, applied in suitable formulations can produce epoxy or Hybrid coatings for matt or semi-matt gloss with very good flow and properties. Variation between matt and semi-matt surface can be obtained by means of suitable adjustment of formulation.
Chemical Name : Pyromellitic acid di (2-phenyl-2-imidazoline) (1:2) salt
Alternative Chemical Name : 4,5-Dihydro-2-phenyl-1H-imidazole -1,2,4,5-benzenetetracarboxylate
Product Code : Curing Agent MB68/Matt Hardener MB55
Chemical Structure
Molecular Formula : C28H26N4O8
CAS No.54553-91-2
EINECS No. : 259-226-5
Molecular Weight : 516.528040 [g/mol]
Appearance : White powder
Melting range : 220~228a
Purity : a Y99%

Application:
The hardener may be applied both in pure epoxy and hybrid (epoxy-polyester) resin powder coatings. Epoxy coatings of gloss range level ranging from 15%~30% and hybrid coatings with gloss levels ranging from 20%~60% ( or greater ) may easily be formulated by the use of MB55. Coatings produced with MB55 is characterized by color and gloss stability under normal baking conditions. Hybrid coating with matt or semi-matt gloss may be achieved by replacing some of the polyester in the formulation with an equivalent quantity of MB55.