Enviro Flush is a non-toxic biodegradable hot melt dispensing equipment cleaner. This cleaner is simple and easy to use not need to mix anything together, just pour Enviro Flush into your tank. After, the Enviro-Flush is in the tank set is for 300 to 350 degrees Fahrenheit The Enviro Flush will circulate through the tank, once it's clean drain your hot melt tank. It is important to scrape away any remaining char or discard. After cleaning your bulk hot melt tank make sure you discard the first few minutes of hot melt.