Notty Isopropyl Alcohol (IPA) is commonly use to clean and remove oily residues. As most detailers will know, wax, sealant and dressing will only bond well to a clean and oil free surface. ISimply wipe it on and buff away the residue to prep a clean and dry surface before applying your chosen product. Notty Isopropyl Alcohol is very concentrated. It has a purity of 99% alcohol, hence we recommend to dilute it approximately with 1 part IPA to 4 part distilled water before use.