Pavercolor metal colors will loose their luster when mixed with Paverpol. The luster can be retained by brushing the dried piece of work with the Pavercolor metal color mixed with Josefine gloss varnish. All Pavercolors can be simply mixed with water to create water paint. However this paint can only be used for indoor pieces of work. For outdoor objects (i.e. garden ornaments, garden sculpture) you can mix Pavercolors with Josefine gloss varnish. It then becomes a proper outdoor paint that can be used for painting, brushing and adding patinas.