Flex Seal Black FSR20 Liquid Rubber Sealant & Coating 14 oz
Product Review (submitted on May 14, 2013):
I'd used this product before, and it worked well. It has a tendency to seem like it's running out early (with product remaining in the can), but you just have to hold the can at the proper angle to get the last bit of it out. This product is priced consistently across the web - except at Rural King, where I believe it was $2 cheaper per can. It arrived very quickly, well packaged. The product worked well to fix the roof leaks I'd purchased it for. Rural King provided some sort of insurance as a free add-on that was a nice touch. Very happy with both the product and Rural King.