TECHNOLOGY FOCUS - CERAMICS AND GLASS - Preferred Components: The reinforcing fiber substrate comprises 70 wt.% of continuous unidirectional fibers and 30 wt.% of continuous plus minus 45 degrees E-glass fibers.x = 2-70, preferably 2.5.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The second amine compound comprises at least one amine compound which is a polyether diamine, a saturated aliphatic ring diamine and/or a linear aliphatic amine. The tertiary amine comprises dodecyldimethylamine (DDMA), and the second amine comprises a mixture of isophorone diamine. (I) is DDMA, decyldimethylamine, dimethylaminopropylmethacrylamide, octyldimethylamine and/or dimethylaminoethoxyethanol. The stoichiometric ratio of the nitrogen-hydrogen bonds (-N-H) of the second amine compound to the epoxy groups of the epoxy resin component is up to 1:1.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: When the composition is cured, the reaction product of the epoxy resin component and the curing agent exhibits a glass transition temperature of greater than or equal to 75 degrees C at a cure time of less than or equal to 3 hours as measured by differential scanning calorimetry. The composition when curing, the reaction product of the epoxy resin component and the curing agent exhibits a maximum exothermic temperature of less than or equal to 230 degrees C for a 100 g mass in a water bath at 70 degrees C. The composite further includes a reinforcing fiber substrate. Preferred Components: The polyether amine is of formula (NH2CH(CH3)CH2(OCH2CH(CH3))xNH2). The epoxy resin system further comprises a polyacrylate or polymethacrylate ester of a polyol. The epoxy resin component further comprises a polyglycidyl ether of a compound of an aliphatic glycol, a cycloaliphatic glycol, a triol, a polyol and/or a polyglycol. The curing agent further comprises a modified amine compound which is a secondary amine Mannich base, a polyamide compound and/or an amine-epoxy adduct. Preferred Definitions:    R3 = 8-12C alkyl, unsaturated alkyl, cyclic alkyl and/or arylalkyl, primary amine, secondary amine and/or tertiary amine, acrylate, methacrylate, acrylamide and/or methacrylamide; and    R1, R2 = methyl (preferred), ethyl, propyl, 5-6C aliphatic carbocyclic and/or aliphatic heterocyclic.    EXAMPLE - Blend containing a composition (100 parts) of EPON Resin 828 (RTM: Undiluted clear difunctional bisphenol) (80 wt.%) and 1,6-hexanediol diglycidyl ether (20 wt.%) was hand-mixed in small polypropylene beakers with two primary diamines (10-30 parts) (isophoronediamine and Jeffamine D-230 (RTM: Polyetheramine)) and one tertiary amine (dodecyldimethylamine, decyldimethylamine or dimethylaminoethoxyethanol) or tetramethylguanidine. The mixture was placed into differential scanning calorimetry pans and cured at 70 degrees C to give the composition.