A composite material and method of manufacture involve a mixture of an epoxy resin and a hardener being essentially free of methylenedianiline and vinylcyclohexene dioxide. A fiber reinforcement is located within the matrix. Advantageously, the matrix has a glass transition temperature of at least 250 F. dry, the resin has a pre-hardening mixed viscosity of 500-1500 cP at 75 F., and the composite material has, upon hardening, an interlaminar shear strength of at least 6.5 ksi dry at 75 F. and at least 3.5 ksi dry at 250 F.