Consolidation of decayed wooden artifacts can be achieved by impregnation with epoxy prepolymer dissolved in a mixture of toluene and glycidyl ether and subsequent polymerization <i>in situ. The principles of selecting the successful method of application are discussed, and the details of the procedure given. Impregnation with the described solution causes insignificant expansion of the wood in contrast to the action of poly (vinyl acetate) in alcohol solution.