Martin F. Weber Retouch Varnish

Retouch varnish is intended for use over partially dry oil paintings, or to replace gloss in "sunken in" areas. Retouch varnishes dry quickly, and can be used as an isolation varnish between layers of paint. Different manufacturers use different formulas; however, usually they are of a thin damar base. Application should be with an atomizer, air brush, or aerosol can. This will not disturb soft, undried paint layers.