2 6 cyclohexyldiamine when used a portion of the amine curing agent enhances the resulting physical properties of the polyepoxide resin examples of amines which can be utilized in combination with 1 methyl 2 6 cyclohexanediamine include aliphatic amines such as diethylenetriamine propylenediamine ethylene diamine triethylenetetramine and cycloaliphatic amines such as n cyclo hexyl 1 3 propanediamine and piperazine aromatic amines hydrogenated to their saturated counterparts also can be used as curing agents in combination with 1 methyl 2 6 cyclohexanediamine such hydrogenated aromatic amines include 1 methyl 2 4 cyclohexanediamine 1 methyl 3 5 diethyl 2 4 and 2 6 cyclohexanediamine and hydrogenated meta and para phenylenediamine the amine curing agent for the polyepoxide resins can also be a mixture of cycloaliphatic and aromatic amines representative aromatic amines which can be used in that combination include 2 4 and 2 6 toluenediamine methylenedianiline metaphenylenediamines diethyltoluenediamine and so forth preferably the level of 1 methyl 2 6 cyclohexanediamine based upon the moles of diamine used as curing agent is from about 5 to 50 mole of the total amine quantity used in forming the polyepoxide resin preferably in the above curative systems a mixture of methyl cyclohexanediamines is used where the mixture consists of 1 methyl 2 4 cyclohexanediamine and 1 methyl 2 6 cyclohexanediamine with the mole percent of 1 methyl 2 6 cyclohexanediamine ranging from about 10 to 35 mol and from 65 90 mol of the 1 methyl 2 4 cyclohexanediamine the isomer mix of methylcyclohexanediamines is readily obtained by the.