Repairing & Sealing Horizontal & Vertical Expansion Joints ...
When working with cement-based products, always wear eye protection and waterproof gloves. Step 1. Sweep out the expansion joints to ensure that any pebbles, dirt or loose debris are removed. Step 2. Scrub and clean the surface of the repair area with QUIKRETE Concrete and Asphalt Cleaner and a stiff bristle brush. Step 3.