CONCRETE SURFACE TREATMENTS FOR RUBBER LINING
Surface PREPARATION
1. Prepare the concrete surface to be lined with abrasive blasting to remove laitance and other debris.
2. Etch the surface with a 1:1 or 2:1(v/v) solution of commercial muriatic (hydrochloric) acid.
3. Inspect the surface to ensure that it is free of laitance, curing compounds, oils, release agents, air pockets, pitting and sharp
changes in surface elevation and that scrubbing with a stiff bristle brush produces no dusting of dislodged cement or sand. At this point the
grain of the surface should not be rougher than that of 10 mesh sand to the touch.
4. Any remaining pits, pockets or rough areas should be filled with epoxy to provide a smooth flat surface for rubber application.