A curable composition, comprising: a first component including: from 5.0 wt% to 20.0 wt%, based on the total weight of the first component, of a toughening agent component including a Bisphenol F based epoxy resin and an urethane acrylate component, the Bisphenol F based epoxy resin being present in an amount from 30.0 wt% to 45.0 wt% and the urethane acrylate component being present in an amount from 50.0 wt % to 70.0 wt%, based on the total weight of the toughening agent component, the urethane acrylate component including the capping reaction product of an acrylate and an isocyanate-terminated prepolymer, the isocyanate-terminated prepolymer being the reaction product of a polyisocyanate and at least a DMC derived polyol having a molecular weight of at least 3000 g/mol; a hardener component that includes at least one amine based hardener and is present in a ratio of 0.8 to 1.2, based on a number of equivalents of amino hydrogen groups in the hardener component to a number of equivalents of reactive groups in the first component capable of forming a covalent link with the amine reactive groups in the hardener; and an epoxy base component that accounts for a remainder of the total weight of the first component and that includes at least one epoxy resin separately provided from the Bisphenol F based epoxy resin; an optional second component including at least one of a filler and any additional ingredient for a targeted application of the curable composition. a first component including: from 5.0 wt% to 20.0 wt%, based on the total weight of the first component, of a toughening agent component including a Bisphenol F based epoxy resin and an urethane acrylate component, the Bisphenol F based epoxy resin being present in an amount from 30.0 wt% to 45.0 wt% and the urethane acrylate component being present in an amount from 50.0 wt % to 70.0 wt%, based on the total weight of the toughening agent component, the urethane acrylate component including the capping reaction product of an acrylate and an isocyanate-terminated prepolymer, the isocyanate-terminated prepolymer being the reaction product of a polyisocyanate and at least a DMC derived polyol having a molecular weight of at least 3000 g/mol; a hardener component that includes at least one amine based hardener and is present in a ratio of 0.8 to 1.2, based on a number of equivalents of amino hydrogen groups in the hardener component to a number of equivalents of reactive groups in the first component capable of forming a covalent link with the amine reactive groups in the hardener; and an epoxy base component that accounts for a remainder of the total weight of the first component and that includes at least one epoxy resin separately provided from the Bisphenol F based epoxy resin; from 5.0 wt% to 20.0 wt%, based on the total weight of the first component, of a toughening agent component including a Bisphenol F based epoxy resin and an urethane acrylate component, the Bisphenol F based epoxy resin being present in an amount from 30.0 wt% to 45.0 wt% and the urethane acrylate component being present in an amount from 50.0 wt % to 70.0 wt%, based on the total weight of the toughening agent component, the urethane acrylate component including the capping reaction product of an acrylate and an isocyanate-terminated prepolymer, the isocyanate-terminated prepolymer being the reaction product of a polyisocyanate and at least a DMC derived polyol having a molecular weight of at least 3000 g/mol; a hardener component that includes at least one amine based hardener and is present in a ratio of 0.8 to 1.2, based on a number of equivalents of amino hydrogen groups in the hardener component to a number of equivalents of reactive groups in the first component capable of forming a covalent link with the amine reactive groups in the hardener; and an epoxy base component that accounts for a remainder of the total weight of the first component and that includes at least one epoxy resin separately provided from the Bisphenol F based epoxy resin; an optional second component including at least one of a filler and any additional ingredient for a targeted application of the curable composition.