MCL® Water Repellent Plaster Sealer is a stable, VOC compliant, 50% silicone emulsion that reduces with water to form stable penetrating water repellent emulsions. MCL® Water Repellent Plaster Sealer was developed to treat a wide variety of mineral substrates including architectural concrete, concrete block, splitface block, pavers, stucco, porous and dense brick, clay tile, and exposed aggregate concrete. It has been found to be particularly effective in Do-It-Yourself (DIY) markets where good water repellency, beading, ease of use and stability are required. MCL® Water Repellent Plaster Sealer can also be used to stop rising damp through damp proof injection into cemetitous walls. MCL® Water Repellent Plaster Sealer is not recommended for below grade applications where hydrostatic pressure can be significant.