I got a can of Nattys Blue paste wax last year and and had not opened until yesterday. I normally take the whole piece of wax out of the jar and put it on the foam pad. When I tried to take the Natty's Blue from the jar it came out in multiply pieces and had a grainy feel to it. Would the wax still be safe to use? I was kinda afraid of it putting swirls on the paint. I have used the regular Nattys wax on details for about the last year and love the stuff, but was unsure about this jar. Have you had that problem before and would it still be safe to use?