CHENG Pro-Formula Acrylic Slurry is ideal for quickly and easily filling both small and large voids that appear after polishing or after releasing concrete from the mold. With a “gel-like” consistency, this fast acting slurry can also be used to fill voids and make repairs on vertical surfaces.
Slurry is a mixture of cement paste, pigment, and water. It is used to fill in the small air bubbles in the surface of the concrete. This is especially important in something like a concrete countertop, because bacteria can get into those holes and grow. Otherwise it’s an aesthetic preference, some people don’t mind the natural look while others are looking for a more refined surface.
Acrylic slurries are available and have the advantage that they will shrink less and adhere to the vertical surfaces better.
Polishing the piece will open up more holes in the surface, so filling the holes with slurry should happen between the final stages of polishing.