EE HAD FOLLOWED INCORRECT MIXING PROCEDURE AND PUT CLAY INTO A COLOR BATCH AS THE FIRST INGREDIENT. THE CLAY PLUGGED UP THE BOTTOM OF MIXING TANK. EE WAS CLEANING TANK, SLIPPED AND FELL AGAINS T A TANK BAFFLE WITH HIS HAND. HE WAS NOT WEARING HAND PROTECTION. RIGHT HAND WAS LACERATED BETWEEN INDEX FINGER AND THUMB.