EE was removing thimbles from swirl chamber and as he was pulling one out of the access hole, some hot material went into the top of his glove. The hot material (kiln feed) caused a burn to the top of EE's right hand (little larger than 1/2 dollar). EE was wearing proper PPE. EE did not report incident until 11/8/10, at which time he was sent to doctor. Wound care/antibiotic.