0XellersBest Answer 9 years ago ReplyUpvoteYour question is slightly unclear, but from what I can tell, you have melted plastic on your soldering iron? That happens to me all the time. The best way to clean it is with a sponge or wet rag while it is heated up, and with a copper scrubber. Then, when it cools down, use some sandpaper if it isn't all gone. Good Luck.