The invention is a composition comprising applying to a substrate a stream of an adhesive comprising: one or more epoxy resins; one or more rubber modified epoxy resins; one or more toughening compositions comprising the reaction product of one or more isocyanate terminated prepolymers and one or more capping compounds having one or more phenolic, benzyl alcohol, aminophenyl, or, benzylamino groups wherein the reaction product is terminated with the capping compounds; one or more curing agents for epoxy resins and one or more catalysts which initiate cure at a temperature of about 100.degree. C. or greater; and optionally; fillers adhesion promoters, wetting agents or rheological additives useful in epoxy adhesive compositions; wherein the adhesive composition has a viscosity at 45.degree. C. of about 20 Pas to about 400 Pa.s. The composition can be used as an adhesive and applied as a stream using a high speed streaming process.