Gilders Back-up Paint: The thick screen ink used as a "back-up" paint for gilded glass. 8 oz container. Gilders Gold Leaf Backup Paint - Used as a Backup Enamel when backing up Gold or Silver Leaf while glass gilding. Gilders Back Up is packaged in Silk Screening Consistency, & for Brushing may be thinned with Turpentine or Mineral Spirits. 15 minutes dry time.