The Muc-Off Disc Brake Cleaner is a great way to increase the lifespan of your disc brakes. It rehydrates your brake pads, greatly reducing squeal and promoting proper function. This restores braking performance to a like-new standard. The cleaner also has an effect on rotors, keeping them from squealing or declining as well. It does all of this by attacking dust, grime, oil, and dirt and rapidly removing them from braking components. Please note that the cleaner should not be left on painted surfaces. It should also avoid contact with eyes, skin, or open flames. The Muc-Off Disc Brake Cleaner will help your disc brakes feel like new for years to come.