Evening Republican, Volume 19, Number 57, Rensselaer, Jasper County, 9 March 1915 — Oil Paint on Cement [ARTICLE]

Oil Paint on Cement

There is some difficulty in making paint adhere to cement, hnt if the cement is-first washed with 1 per cent sulphuric acid (one part concentrated acid to one hundred of water), rinsed and allowed to dry thoroughly, the paint will find the surface suitably prepared for adhesion. Or the cement may be covered with three coat* of water glass (silicate of sod*), one part to four of water, apd then painted. A first coat of linseed oil varnish followed by the usual paint i* effective— Scientific American. ? '