Dirty Rawlings patch

I was just wondering if someone could give me some tips on cleaning the patches on a Rawlings glove. Picked up a Pro-TB to use as a gamer but would like to clean it and relace it first.
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Can someone tell me what the wax like substance is that Rawlings used inside of there HOH gloves. My dad has a PRO-2 that is apart and the wax is dried up. He would like to add some to the glove before petting it back together.