Thank's Bob!!
Man, it's alright, pretty good for small-tight areas. I found it to be a pain trying to pull it up after paint was on it. I did tape as close to the vents as I could, then put the foil down. I had hoped the tape would have pulled the foil up as I went, it was so-so. I do like using the electrical tape though! That's perfect for curves & straight lines! I stole that one from an airplane modeler!