No need to lug around a giant bag of grout! This 2 pound tub is easy to use and store. Premium grout is a polymer modified portland cement based blend. It provides hard, uniformly colored, wear resistant joints with greater bond and better compressive strength than other grouts. Sanded grout is ideal for both interior and exterior use. Delphi artist Melanie Churchill created the mosaic below using Terra Cotta grout.