Gilding size, also known as gilding adhesive, is used to bond metal leaf
to a prepared surface. The type of size selected will influence the working
time, application method, and final appearance of the gilded surface. Oil-based
sizes are commonly used for exterior and architectural gilding due to their
durability and longer open times, while water-based sizes are often chosen for
interior work and faster drying applications.
Sepp Leaf Products offers a wide selection of professional gilding sizes
to suit a variety of techniques and project requirements. Our range includes Slow-Set
Size, Quick-Dry Size, Water-Based Size, LeFranc 12-Hour Size, LeFranc 3-Hour
Size, 1-Shot Size, Colnasize, Wunda Size, and Specialty Sizes. These
products are trusted by artists, sign painters, restorers, and decorative
finishers for reliable adhesion and consistent results across both interior and
exterior gilding projects.
• Drying time to reach a proper gilding tack and open time for gilding vary based on temperature and humidity. Ideal conditions for application of all products are 65 to 75 degrees Fahrenheit and 40% to 60% relative humidity. Working under different conditions will affect the performance of all products.
• All sizes and other coatings should be stirred to combine all components in order to assure consistent results. Never shake materials and do not mix too vigorously as this may cause bubbles to form, affecting the finished surface.
• Use all materials at package consistency and only thin as recommended by the manufacturer.
• All materials may be applied with brush, roller or sprayer. An airless of HVLP spray equipment is recommended. Manufacturers' coverage guidelines should be followed carefully.
• Imitation gold leaf, copper, aluminum, silver in low karat gold leaf and 100% silver leaf are highly reactive and tarnish when left exposed. They can also react to components contained in sealers. Therefore discoloration can happen even after a sealer has dried, sometimes years later.
• Since the conditions and use of all products sold beyond the control of the manufacturers and SeppLeaf Products, the user assumes all risks associated with the use and performance of products purchased.
• Experimentation on a test object using all steps involved is recommended before working on the project.
• A gilder's experience and a working knowledge of materials and procedures are the best guide when approaching a project.
• Working with new products and procedures requires thorough testing to determine compatibility and final results.
