OMICURE U-35M
OMICURE U-35M
OMICURE U-35M, a cycloaliphatic substituted urea, is intended for use as a latent accelerator for the dicyandiamide cure of epoxy resins. The addition of OMICURE® U-35M to epoxy/dicy formulations produces shelf-stable one-part products that cure in shorter times and/or at lower temperatures. Of the CVC Thermoset Specialties substituted ureas, this product will impart the longest room-temperature shelf life to epoxy/dicy formulations.
On an equal weight basis, OMICURE U-35M is less efficient than aromatic ureas for accelerating the epoxy/dicy cure. Cures can be obtained at 115°C in approximately one hour and in less than seven minutes at temperatures of ≥ 150 °C. Suggested use levels of this product are ≤ 5 phr. Cure times are dependent on the composition of the formulated product and your particular end application.
Room temperature shelf lives (time to double viscosity) in excess of six months are easily obtained. Some of the factors that can affect shelf life are formulation ingredients and compounding parameters. Ingredients in which OMICURE U-35M is insoluble at processing and storage temperatures further enhance the storage stability of formulated systems. It can be incorporated into your formulation concurrent with the dicy addition
Applications for OMICURE U-35M
- Adhesives
- Powder coatings
- Prepregs
- Encapsulations
- Reinforcements
Properties
Check out other OMICURE Curing Agents, Accelerators, and Catalysts in the CVC Product Brochure!
