@ZR.....very good info re door rubbers etc. I had also read that it did not harm them but kept it off everywhere I could. Glad I did. I heard some Canadian Tire stores have arranged to apply the product. As you probably know, it is a Canadian product and they shipped it to me fast and well packaged. Appreciate your head's-up on keeping it off the rubber/seal areas, I'll be extra carefull about that in the future!