I ordered the product just for my car ... and I am completely convinced! I have after the first application forgot a piece of windshield .... the next morning exactly this narrow strip was under way, the rest was free ;-) Of course, one must not expect summer like, totally dry disc, the disc will naturally moist already ... but belongs fogging of the past, we can look forward to a free disk! Should you nevertheless times be too wet, simply wipe with NEM (good) car sponge .... This car sponge is but after the first use of sprays also are needed, because it already forms a milky film on the disk ... This may one but completely calm polish ... then is a safe ride no more obstacles !! Oh .... the spray is more than fruitful ... I've worked all discs in the car, and in the bottle lacks virtually nothing ... if this keeps up, sees the spray still come and go several cars. ..