Grumbacher Retouch Varnish is for use during intermediate stages of development in an oil painting to even-out gloss of unfinished works, revive sunken-in or dry areas and to aid in accurate color comparison for further painting. It can also be used to protect paintings before final varnishing. Transparent, clear, and glossy. Must dry completely before over-painting. Use only in thin layers with a very soft brush. Using a spray atomizer is also helpful in preventing disturbance of the partially dried surface. Not intended as a final varnish. Made in USA.