Silicone sealer is a type of glue that is made out of plastic. Silicone sealer is highly effective and can be used to perform powerful bonds between glass, plastic, wood, and leather. Silicone sealer is very popular in home repair for things such as cracked glass windows or bowls to arts and crafts items like mosaics. Silicone sealer needs an hour to a day to set depending on how much of it you use and how tropical or arid your environment is. If you should get silicone sealer on your clothing, wash it immediately as it is very difficult to remove even when the items are repeatedly washed. Silicone sealer is found everywhere from small dollar stores to your larger hardware chains.