Hot Foot Bird Repellent Gel is totally different from traditional tactile repellents. Its chemical formula will not melt, run or drip even in temperatures which exceed 356 degrees F. It is less toxic than table salt and works through its sticky nature, NOT by burning or irritation. As birds go to step out of the gel they experience the feeling that their foot is stuck. This feeling is disliked, and the message is quickly communicated to other members of the flock, which quickly abandon the treated surface.