HydroGlaze is an overglaze product that allows for creative, easy-to-apply decorative decals through hydrographic and screen printing techniques. Once applied the overglaze can be re-fired to its desired temperature (^6-^10) creating a permanent decal. HydroGlaze provides ceramic artists with a simplified way to decorate 3D forms and textured surfaces with striking precision. This process broadens the possibilities of traditional decals and makes ceramic decoration more accessible to creators of all skill levels.

Follow these instructions to achieve optimal results when applying HydroGlaze.

Materials Needed

  • HydroGlaze

  • Hydrographic Film

  • Screen Printing Supplies

  • Water Tank / Dams

  • Protective Gloves

  • Dish Soap (for cleaning)

  • Vacuum Table (optional)

Before You Begin / Things To Consider…

  1. Water Temperature: Cold or room temperature water is preferred. Hot water causes the film to expand rapidly which can crease the decal.

  2. Depth of Tank: The water tank should be deep enough to submerge the ceramic object into it easily. The force of the water pushing the decal against the ceramic surface is crucial.

  3. Size of Water Tank / Size of Decal: The wider the tank the more room for print to expand. Placing a small print into a large tank leaves too much room for the film to expand and could cause the decal to break apart. (This can be addressed with dams that contain the print in a designated space or with a smaller dipping tank)

  4. Decal Clarity: HydroGlaze decals maintain sharp clarity on unglazed vitrified surfaces. If applied over a glazed surface, the runnier the glaze the more distorted and blurred the decal will be.

  5. Work Space: Handle the hydrographic film in the studio with care, as it is highly sensitive to water. Even minimal contact with moisture can dissolve the film and may damage the roll.

Application Process

  1. Stir the HydroGlaze:
    Start by thoroughly stirring HydroGlaze to ensure all ingredients are evenly mixed.

  2. Cut the Hydrographic Film:
    Cut the hydrographic film slightly larger than the design.

  3. Printing with HydroGlaze:

    • Secure the hydrographic film onto the printing table (with tape or vacuum table) to prevent it from sticking to the underside of the silkscreen.

    • Place an adequate amount of HydroGlaze onto the silkscreen, then print directly onto the film.

  4. Transfer Film to Water Tank:
    Carefully pick up and place the printed film in the water tank, print side facing up. Allow the film to absorb the water for approximately 30-60 seconds. Be sure to print and dip in the same work session if the ink dries to the hydrographic film the process will not work.

  5. Submerge the Ceramic Object:
    Slowly dip your ceramic piece into the design, allowing the print to stretch around the form and textures.

  6. Air Dry:
    After dipping, place the piece on a board and allow it to air dry for 30 minutes. A sheen from the film residue will be visible. Keep in mind that this residue acts as an adhesive when dry, potentially causing it to stick to the board. A light spritz of water can release it if needed. Handle the piece carefully; avoid touching the print as it will still be wet.

  7. Cure the HydroGlaze:
    Place your printed piece in a kiln overnight (approximately 12 hrs.) at 180 degrees to set the HydroGlaze. After this step, the print is safe to touch.

  8. Rinse:
    Gently rinse the piece with warm water to remove the remaining film residue. Do not scrub the surface. I recommend rinsing it under the sink or using a sprayer. After rinsing, no sheen or stickyness should remain.

  9. Final Firing:
    Re-fire to the desired temperature (Cone 6-10) to permanently adhere the decal.

Following these steps will help you achieve a beautiful finish with Hydroglaze, creating a durable, food-safe, decorative design.