EXPIRATION: CARPRO products now come with only a PRODUCTION DATE ("Pr") written in day/month/year format. Expiration for CARPRO Eraser is two years from production date. </br></br>An excellent all around cleaner, eraser was specifically designed for the complete removal of polishing oils for inspection and prior to the application of CQARTZ or any other coating, wax, or sealant. However due to the alcohol mixed with Eraser's special degreasing agent we have found it also makes an excellent streak free glass cleaner and also works as a general purpose degreaser and cleaner for many situations. A final wipe-down with Eraser on your tires will leave them cleaner than a tire wash and scrub alone. </br>Until now IPA (isopropyl alcohol) and water mixture, have been used to remove polish residue and fillers from auto paint before a wax or paint sealant are applied. This step allows you to check your work following compounding and it is supposed to ensure a totally clean paint surface on which the LSP (last step product) can bond. IPA loosens oil but the problem occurs as oil can be spread around or redeposited as you wipe the paint.</br>Eraser goes a step further with its intense cleaners that dissolve oils. Eraser breaks down polish residue as well as removing dust. It has the added bonus of cleaning better than an ordinary IPA, due to its patented degreasing formula. Eraser makes it possible for everyone to get the perfectly clean surface prior to the application of CQARTZ or any other coating, wax, or sealant. Furthermore, with our proprietary blend you will not find even a hint of that nasty IPA smell when using Eraser.