This is one of our favorite seals, but it is a bit trickey to install. It is silicone, so tape will not stick to it. To install this seal you need to tap one end of the seal at the bottom of the edge your going to install the seal on. Now ever so slightly stretch the seal so that the it laying flat against the edge of the glass. Bend the seal over the top corner of the glass and tape it off. You don't want the seal stretched much, just enough to hold it streight. Apply a thin coat of clear silicone sealant to the back edge of the seal and press it on to the edge of the glass. after 12 hours you can remove the tape and trim off the excess seal.