a method for producing a phenolic molding is disclosed . the method includes the steps of mixing phenol , formaldehyde and a hydraulic cement , forming the resulting composition to a predetermined shape and maintaining the composition in the predetermined shape until an insoluble , infusible article is formed by condensation . at least 10 percent of the hydraulic cement must be portland cement . the mole ratio of formaldehyde to phenol must be at least 1 : 1 , and the amount of hydraulic cement must be sufficient for reaction with from 1 to 9 times the sum of the water of condensation of the phenol with the formaldehyde and the water charged to the mix . the use of reinforcing glass fibers in producing phenolic moldings is also disclosed , as well as the use of urea and resorcinol in addition to the phenol , formaldehyde and hydraulic cement .