Bests & Worsts Reviews from Amazon

This review is for Dicor 501LSW-1 Lap Sealant. This sealant is for use on horizontal surfaces. Do not use it on vertical surfaces or it will run down the sides. There is a negative review on this product complaining that it does not self level, the negative review is mis-leading. This product does self level. I think the person who purchased it and was disappointed thought it would be a molasses like consistency that would run and spread thinly and evenly. That is not what this product does. This works great on things like roof vents and where ceiling fans protrude from the roof. It kind of works this way, lets say you have a screw head you want to cover, put a 1/2" high glob of 501LSW on it that completely covers the screw head. After a few moments the glob will spread out to a larger circle and be about 1/4" high. If you are using this like traditional caulk and just running a bead of it, that wont work right. It has to be a tall bead of caulk so that it can level out. Like the example above with the screw head, if you put a bit of caulk on the screw head that is 1/8" high that wont spread and it probably wont self level much either. This stuff is meant to be put on in a generous manner, it is not going to look pretty but it will flow into nooks and crannies and fill potential leak spots. If you are near the edge of your roof be careful as this can level out by the roof edge and drip down the sides. In a way it is similar to baking cookies, you put a ball of cookie dough on a sheet and as it bakes the dough ball spreads out and makes a thin cookie. If you think of this product like the cookie i think it will be closer to expectations. If you need an item for a vertical surfact this is NOT it.