The old name was painted on, so we used Easy Off Oven Cleaner to remove it. We sprayed it on, let it sit for 5 minutes, and then scrubbed each letter. As we expected, the Easy Off left some yellowing on the transom where sprayed, but it came off easily with distilled white vinegar. Unfortunately, we were not able to remove every trace of the old letters. We tried a second pass of scrubbing, then buffing, then wet sanding, and none of them had the effect we were hoping for.