EMPLOYEE WAS CLEANING #59 SCREW, TRYING TO UNPLUG IT ON THE SOUTH SIDE. HE WAS TAKING SCREW COVER BOLTS OFF AND HOT MATERIAL GUSHED OUT OF THE SEAL, FALLING ON TOP OF HIM. HE HAD PROPER GEAR ON BUT DID NOT HAVE HIS GLOVES INSIDE HIS JACKET SLEEVE. HOT MATERIAL GOT INTO HIS RIGHT GLOVE CAUSING SECOND AND THIRD DEGREE BURNS TO HIS RIGHT HAND AND WRIST.