It is very easy to make a mess when using sealant, especially if you are new to it. This product is a powerful cleaning solvent which will remove any excess sealant efficiently and effectively. It also works well preparing the area to be sealed by removing any excess grease or contaminates. It can be used prior to applying any of our sealers, as well as afterwards for any clean-ups. There is no risk of leakage with the included safety cap. Gold Label Cleaning Solvent is a vital product when repairing or sealing your pond, tank or aquarium etc.