1. The concrete must be structurally sound. Remove all foreign matter from the original surface: dirt, oil, algae, cement latent, or other contaminants.

2. Remove all sealants, membranes, and built-up systems.

3. The surface should have a rough wooden-float finish.If the surface is polished use muriatic acid, a water-blasting, or a sandblasting machine to roughen up the surface. Please take all necessary protective measures when handling acid.

4. Cold joints, construction joints, and cracks greater than 1/10 of an inch should be chipped out approximately ½ inch wide and ½ inch deep or to sound concrete.

5. The surface should be thoroughly moistened, yet free of puddles, prior to application or before applying the treatment.