don't use acid, that will ruin your car's metal body and rubbers. try first those window glass cleaners available in diy shops. or just even the lowly joy detergent. pag hindi makuha sa cleaners then there is an automotive windshield polish available at wilcon builders' supply, it will be the orange colored tube in their automotive section. or get professional help from reputable detailing shops.
Some detailers use 2000 and up grit sandpaper sir. Then very gently tinatanggal yung watermark. Yung 2000 grit parang papel nalang siya di mo na ma feel yung gaspang.
thanks fellow tsikoters, ma try nga ang sandpaper #2000 at suka.... actually, once nag try ako, blade.. kiskis, kaya lang kakapagud.. konti lang nakukuha, but correct me if am wrong, supposedly, di naman nagagasgas kung pure glass diba?....
thanks fellow tsikoters, ma try nga ang sandpaper #2000 at suka.... actually, once nag try ako, blade.. kiskis, kaya lang kakapagud.. konti lang nakukuha, but correct me if am wrong, supposedly, di naman nagagasgas kung pure glass diba?....
Sa blade sir hindi. Pero sa sandpaper you have to be careful din although 2000 grit is fine enough to create mirror like finish in an aluminum sheet. So very low risk of creating swirl marks.