Mosaic Grout Sealer and Waterproof Additive 1L

Use as an adhesive and sealant for indoor or outdoor mosaics. The additive is acrylic-based which increases the strength and flexibility of the grout as well as providing water resistance. In addition when the additive is used it will enhance the colour of the grout. Brush a final layer of additive over your project once the grout has dried to give added strength and durability to the surface.