Once you have done the hard work with the cutting compound, use this product to impart a lasting shine. It is also very good for boats that love a good shine anyway. Repels water and oil based stains deposits, making future cleaning easy Works well on, Plexiglass windscreens painted surfaces, apart from fibreglass cars Can be applied over old wax or polish Claimed to last 4-5 times longer than competitors' products Includes PTEF which is another name for Teflon