EE WAS ON KILN FLOOR RAKING COATING FROM DISCHARGE DAM. A LARGE PIECE OF COATING STRUCK THE RAKE HEAD ON THE SIDE, CAUSING THE RAKE TO STRIKE THE EE IN THE FACE, CAUSING A SEVERE LACERATION TO THE CHIN AND THE LIP. THIS REQUIRED SEVERAL STITCHES TO CLOSE. NO LOST OR RESTRICTED WORK DAYS OCCURRED.