Patent ID: 8642709

Claim:
A two-component composition comprising a first component and a second component, wherein the first component is a mixture of reactive epoxy resins comprising, based on the mass of all epoxy resins, a) 30 to 45 wt % of an epoxy group-containing reaction product of epichlorohydrin with polypropylene glycol which has an epoxy equivalent weight of at least 250 g/eq; b) 30 to 45 wt % of an epoxy group-containing reaction product of epichlorohydrin with a novolac resin which has an epoxy equivalent weight of at least 175 g/eq; c) 10 to 40 wt % of an epoxy group-containing reaction product of epichlorohydrin with bisphenol A, which has an epoxy equivalent weight of at least 500 g/eq; and d) optionally, formulation constituents; and wherein the second component contains at least one thiol group-containing hardener for epoxy resins; and wherein the two-component, upon cure, has a tensile shear strength of greater than 8 MPa, measured in accordance with DIN EN 1465.