Omicure U-24M 2,4’-Toluene bis dimethyl urea 17526-94-2 CVC Catalyst / Accelerator >> Amine Epoxy Resins Coatings >> Powder Coatings Powder coating OMICURE ® U-24M Micronized 2,4’ Toulene Bis Dimethyl Urea OMICURE U-24, an aromatic substituted urea, is intended for use as a latent accelerator for the dicyandiamide cure of epoxy resins. The addition of OMICURE U-24 to epoxy/ dicy formulations reduces the time and/or temperature re-quired to cure these shelf stable one part products. Compared to the other CVC substituted ureas, toluene bis dimethyl urea provides the greatest degree of acceleration to epoxy/dicy formulations. OMICURE U-24, at concentra-tions required to provide an equal degree of acceleration, will produce the least effect on cured properties. Sug-gested use levels of OMICURE U-24 are <5 phr. Curing can be accomplished in about 50 minutes at 100°C and in less than 3 minutes at temperatures >150°C. Cure times are dependent on the composition of the formulated prod-uct and your particular end application. Room temperature shelf lives (time to double viscosity) of >3 months can be obtained when <1 phr OMICURE U-24 is used with DGEBA/DICY. Some of the factors which can effect shelf life are formulation ingredients and compound-ing parameters. Ingredients in which OMICURE U-24 is insoluble at processing and storage temperatures will en-hance overall storage stability. OMICURE U-24 can be incorporated into your formulation concurrent with the dicy addition. As a latent accelerator in the dicyandiamide cure of epoxy resins used in: Powder Coatings Micronized aromatic substituted urea. Used as a latent accelerator in the dicyandiamide cure of epoxy resins in powder coatings. Reduces time and temperature of curing. Provides great degree of acceleration to epoxy/dicy formulations. <br> Use level: &lt;5 phr.