Second Skin Butyl Sealant Tape – Butyl Rubber Sealant, Multi-Purpose Butyl Rope, and Putty Tape for Automotive (Car, RV, Marine) – 1/4” x 1/2" x 20’ – Made in The USA

We used this to replace a windshield in our truck. It was easy to use and worked amazingly. It is super sticky and sealed perfectly. Not a single leak.

I bought this to mount and seal a high mount third brake light for a Toyota 86 and it worked perfectly. It came with 3m automotive tape which worked until the sun melted it. It also didn't have any seal to prevent light bleeding in the back window. This stuff works like industrial silly putty, very easy to apply but I'm not even sure I could remove it if I wanted to. Excellent product and I have tons left over for other projects. Very pleased. UPDATE 1-21-2019: Apparently you can also use this stuff to patch a tire in an emergency. I had driven to work and hit a nail without realizing it until I went outside to lunch and saw my tire was flat. Thankfully I still had this stuff in the trunk from my original project, so I cut off about two to three inches, flattened it out in my hand, and molded it over the hole after I took the nail out. Then I cut a piece of cloth roughly the same size, and then I applied it on top to keep it from sticking to the road too much. Then I backed the car over the patch, and filled the tire to spec with a portable air compressor I borrowed from a co-worker. It comes off after every drive but it keeps the air in the tire long enough to make it home or to a garage to get it replaced. It's not the best option or the intended use but it works in a pinch on punctured tires.

Anytime I’m scratching my head to find a quick sealant mastic is my go to. This is the real stuff.

An absolute dream to use for car door vapor barrier repair or replacement. Simply unwind from the coil, adhere the sticky side to the door, then peel off the backing paper and press vapor barrier onto the bead. This product is approximately twice as wide as 3M's 08578 segments, and since it comes in a roll, it is much, much, much easier to use.

works, very sticky. tuff to cut and can be a pain to work with. It has handle well in the rain.