The realistic water is used to model still or slow moving water, such as ponds, rivers, lakes and more. Pour directly from the bottle. Surface dries firm and clear in approximately 24 hours, depending on humidity conditions. Seal water area with plaster cloth and use only Woodland Scenics earth colors liquid pigments, water undercoat or 100% acrylic paint when preparing your water feature. One bottle covers an area 17" diameter if poured to a depth of 1/8".