FUGALITE ECO INVISIBLE – a solution on how to maintain the beauty of the glass mosaic. Photochromatic filler and glue, waterproof, stain-resistant, ideal for glass mosaic and granite tiles giving visual continuity to paved surfaces. Prevents the growth of fungus and bacteria. Applicable joint width of 0 – 3 mm.

For more you can see the following link

http://products.kerakoll.com/gestione/immagini/prodotti/Fugalite%20eco%20Invisibile_hr.pdf

And watch the video