Glass Bond L is a unique latex additive that is specially designed for use with Pro-Line Brilliance colored sanded grout. When Glass Bond L and Pro-Line Brilliance colored sanded grout are combined, they create a custom colored setting material designed specifically for glass tile installation. While designed for glass tile units Glass Bond L can also be used for semi-vitreous and vitreous tile such as porcelain, ceramic and mosaic units for both interior and exterior applications. Glass Bond L provides a superior bond and is ideal for use in demanding conditions.