A UV stable, colorless, reversible varnish made from hydrogenated hydrocarbon (Regalrez 1094) resins dissolved in pure, low-aromatic solvents and a UV absorber and stabilizer. These varnishes will not cross-link nor yellow over 100 years as shown by the tests of de la Rie and McGlinchey (4). These varnishes qualify to be called Class A materials as defined by Feller (5).
UVS Finishing Varnish is designed for use in the conservation of Old Master Paintings. It is formulated to achieve optimum wetting and penetration, in order to enhance and bring out the colors, lowest possible solvent action on old paint and particularly on materials used in inpainting, and maximum resin content for best coverage. It dries into a film which has excellent leveling of a surface is required; UVS Finishing Varnish can be "rubbed" when dry just like mastic or damar.
Sold in Quart size.
4. E. Rene de la Rie and Christopher McGilinchey, New Synthetic Resins for Picture Varnishes?, IIC Preprints to the Brussels Congress, pp. 168-173.1
5. Robert L. Feller, Standards in the Evaluation of Thermoplastic Resins, Preprints of ICOM in Zabreg (1978), pp. 78/16/4.