Forms a barrier between the leather and dye stain. Used to prevent dye stains from coming through the repair area.

Heavy ink stains from marker pens, glue migration, tyre marks or other dye stains can penetrate upwards through a freshly repaired & recoloured surface. Applying Geist. Repair the Blocker prior to colouring, preventing such stains from showing through. Ensure dye stains are thoroughly cleaned to remove as much staining as possible before using the Blocker.