I bought last december 2010 a brandnew Ford Ranger Trekker, I live near the sea. Car usually parked in a garage with a roof and a cement wall which shields the car from direct sea breeze. Garage is about 200 meters from the sea. I built a wash ramp and wash (using pressure washer) the under carriage once a week and the body also once or sometimes twice a week.

I looked under and the galvanized floor panels of the car don't have paint on it.

Under these circumtances, do I need undercoat? If yes, can anyone recommend a good undercoater somewhere in Quezon City area? I'm from Samar province and would be going to the said City where we have a second home sometime next month. Would appreciate your ideas. Thanks!