GOLDEN Absorbent Ground, designed for stain and watercolor-type applications, is light stable, permanent and flexible. While it has a gesso-like consistency, it is not intended as a gesso alternative. It must be applied over a porous and "toothy" surface, such as GOLDEN Gesso to ensure adequate adhesion due to the type and level of solids in the product. Once properly sealed, it is a permanent acrylic film that does not need to be kept under glass, however, the surface is quite delicate and additional protection is recommended. A properly applied isolation coat and GOLDEN Varnishes (Polymer & MSA) will protect the artwork from environmental factors such as sunlight and dust.