KATBAK CERAMIC WELD BACKING - CERAMIC TILE ADHERED WITH ADHESIVE FOIL. THIS PRODUCT FITS TO THE REVERSE SIDE OF STEEL PLATES TO BE WELDED TOGETHER AND SUPPORTS A MOLTEN WELD POOL, WHILST IT SOLIDIFIES DURING THE WELDING PROCESS. TILE COMPOSISTION 37 PERCENT AL2O3, 8.5 PERCENT MGO, 52 PERCENT SIO2 AND 2.5 PERCENT REST.

CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6. TARIC OTHER THAN REFRACTORY BRICKS WITH AN EDGE LENGTH OF MORE THAN 300 MM AND A TIO2 CONTENT OF NOT MORE THAN 1% BY WEIGHT AND A AL2O3 CONTENT OF NOT MORE THAN 0.4% BY WEIGHT AND A CHANGE IN VOLUME OF LESS THAN 9% AT 1700 C