Proback

Follow below indications, before proceeding with complete product application. Ensure that surfaces to be treated are clean, free of dirt, dust, grime and surface incrustations.
PRE INSTALLATION APPLICATION:
Apply the product evenly with a brush, roller, spray gun, or low-pressure airless sprayer to the back and four sides of the tile, slab, or block to be installed. Spread the product well to avoid buildup. Allow the product to penetrate the stone and apply wet-on-wet. Let air dry for approximately 8-12 hours before installing the material. Store face to face during drying.
COMPLETE PROTECTION (SUGGESTED FOR HIGH ABSORBANT MATERIALS):
For the preventative treatment of highly absorbent stone (limestone, sandstone), the product can be applied to all six sides of the tiles to protect them from rising damp, salts, and impurities and to prevent the formation of streaks and stains. Apply the product evenly with a brush, roller, spray gun, or low-pressure airless sprayer on all sides of the tile, slab, or block to be installed. If necessary, the product can be applied by immersion. Immerse the stone completely in the product for the necessary time, depending on the type of stone and its absorption capacity. The average immersion time is 20-40 seconds. Allow to air dry, avoiding buildup of product. Once completely dry, install the material following the installation instructions and using the appropriate adhesive. The treatment can be completed, on the exposed side, with the application of a stain-resistant protective coating from Bellinzoni range.

Estimate coverage per litre of product: 10/15 sqm (100-160 sq ft).

Coverage depends on texture and porosity of the surface.