Miracote MiraGard HDWB 7628-M 5 gal Matte Sealer is a single component, water-based, self-crosslinking pure acrylic sealer designed for interior or exterior use over Miracote cementitious coatings, overlays and MiraGard Colorbond XL to enhance stain resistance and cleanability. Exhibiting excellent chemical and abrasion resistance, MiraGard HDWB is also most suitable for use to seal new and existing concrete, masonry and many other surfaces.