This product will remove propolis from most surfaces especially stainless steel and plastic. Great for cleaning gloves (carry out a test first) and hive tools. It is anti-bacterial and very economical to use, a little goes a long way. 500ml bottle with trigger spray. Apply to propolis and leave for a few minutes. For stubborn areas leave for 10 minutes before rinsing. Precautions required during application. Contains potassium hydroxide.