... additive for water anti-pentration glaze,suitable for wall and floor tile. GlazeEngobe Frit LK413 & LK4139Engobe additive for water anti-pentration ... glaze,suitable for wall and floor tile single or double firing, to get the best effect ... used widely in the interior and exterior wall tiles, floor tiles, vitrified tile, daily ceramics, sanitary ware, etc. Apart from that ...