A 500ml bottle of Douglas Sugar Soap is a fast-acting concentrate for cleaning and preparing surfaces before painting. It's also suitable as a general household cleaner. This sugar soap is non-abrasive, so there's no danger of scratching and damaging surfaces. Simply add water to the concentrate. With a sweet smell, this soap can be used both indoors and outdoors. It's economical, as the 500ml concentrate will produce up to 3 gallons of cleaning liquid when added to water. The formula is suitable for most surfaces, and it's safe and easy to use.