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UV Stable Finishing Varnish
A UV stable, colorless, reversible varnish made from Regalrez resins and containing a UV stabilizer for achieving a gloss finish. Reversible for 100+ years based on accelerated tests.
Description
UVS Finishing Varnish is a UV stable, colorless, reversible varnish made from hydrogenated hydrocarbon (Regalrez) 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, the 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. UVS Finishing Varnish is available in one-quart containers. 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.
PVA Isolating Varnish
A colorless, clear, stable spray varnish made from vinyl resins for isolating layers of retouches, fresh paint and varnishes.
Description
G. BERGER’S ISOLATING SPRAY VARNISH This isolating PVA varnish was designed to serve as a fixative for retouches, and to protect fresh retouches when the painting is varnished. It is carefully balanced formulation of vinyl resins and fast-drying solvents which are ideal for application by spraying. It can be applied to a recently varnished painting without casing “spotting” or “orange peel” (3).
Once the isolating varnish has dried (1 or 2 hours), the painting can be varnished with a suitable furnishing varnish, such as UVS Finishing or Matte Varnish. Because the isolating varnish dries rapidly, it does not penetrate absorbent surfaces, such as those of modern and contemporary paintings, and causes only minimal color change.
Because its vinyl resins are colorless, stable, and clear, G. Berger’s Isolating Spray Varnish can be used to ‘isolate’ acrylic paintings from any overpainting or varnishing that they might require for their protection. Although the application of PVA on acrylics is irreversible, such a coating might nevertheless prove useful as a protection for the surfaces of these paintings since PVAs do not discolor. G. Berger Isolating is available in one-quart cans. It should be sprayed without further dilution at 40 lbs. per square inch of air pressure. 3. “Inpainting Using PVA Medium”, by G.A. Berger, in “Preprints of Contributions to the IIC Brussels Congress, 1990.
Once the isolating varnish has dried (1 or 2 hours), the painting can be varnished with a suitable furnishing varnish, such as UVS Finishing or Matte Varnish. Because the isolating varnish dries rapidly, it does not penetrate absorbent surfaces, such as those of modern and contemporary paintings, and causes only minimal color change.
Because its vinyl resins are colorless, stable, and clear, G. Berger’s Isolating Spray Varnish can be used to ‘isolate’ acrylic paintings from any overpainting or varnishing that they might require for their protection. Although the application of PVA on acrylics is irreversible, such a coating might nevertheless prove useful as a protection for the surfaces of these paintings since PVAs do not discolor. G. Berger Isolating is available in one-quart cans. It should be sprayed without further dilution at 40 lbs. per square inch of air pressure. 3. “Inpainting Using PVA Medium”, by G.A. Berger, in “Preprints of Contributions to the IIC Brussels Congress, 1990.
UV Stable Matte Varnish
Achieves a matte finish or intermediate degrees of gloss by blending with UVS Finishing Varnish. Based on Regalrez resins and synthetic/microcrystalline waxes.
Description
UVS Matte Varnish is a UV stable, colorless, reversible varnish made from hydrogenated hydrocarbon (Regalrez) resins dissolved in pure, low-aromatic solvents and a UV absorber and stabilizer. This varnish will not cross-link nor yellow over 100 years as shown by the test of de la Rie and McGlinchey (4). This varnish qualifies to be called a “Class A” materials as defined by Feller (5). UVS Matte Varnish was designed for use in conservation of modern paintings where a matte finish is desired. It was formulated to achieve the lowest possible action on the original paint, and maximum resin content for nest coverage. It can be mixed with UVS Finishing Varnish in any proportion to provide the desired degree of gloss.
UVS Matte Varnish is available in one-quart containers.
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.
UVS Matte Varnish is available in one-quart containers.
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.