Jeffamine T-403 Polyoxypropylenetriamine 39423-51-3 Huntsman Crosslinking / Coupling / Curing Agents >> Amines /Amides >> aliphatic Rheology Modifiers / Thickeners Epoxy (EP) PU - Prepolymers ADHESIVE SEALANT JEFFAMINE T-403 polyoxypropylenetriamine is one member of a family of Huntsman Corporation’s polyamines having as their backbones repeated oxypropylene units. As shown by the above structure, JEFFAMINE T-403 is a trifunctional primary amine having an average molecular weight of approximately 440. Its amine groups are located on secondary carbon atoms at the ends of aliphatic polyether chains. JEFFAMINE T-403 is light in color, low in viscosity and vapor pressure, high in primary amine content, and completely miscible in a wide variety of solvents, including water. JEFFAMINE T-403 polyoxypropylenetriamine undergoes reactions typical of primary amines. JEFFAMINE T-403 is closely akin to another JEFFAMINE product, JEFFAMINE D-230, and finds use in similar applications. Thus, JEFFAMINE T-403 is used primarily in epoxies, where it has certain advantages over its sister product. Coatings made from JEFFAMINE T-403, for example, will have somewhat better chemical resistance and color than those made from JEFFAMINE D-230. “B-staging,” a common problem with many epoxy curatives, is minimized by the use of JEFFAMINE T-403. That is, ultimate properties are more closely approached with room-temperature cures when JEFFAMINE T-403 is the curing agent. JEFFAMINE T-403 has found a special niche in the area of reinforced composites. Where the ultimate in strength and flexibility is needed, this amine curing agent should be considered. Example: Wind powered generators constructed by filament-winding techniques. JEFFAMINE T-403 has been used in oil recovery, as a viscosity enhancer for urethane caulks and sealants, and as an extender-crosslinker in polyurethane reaction injection molding (RIM). Low vapor perssure polyethermamine. Used as an epoxy curing agent. Provides ultimate strength and flexibility. Can be used viscosity enhancer for urethane caulks and sealants.