Abstract
Corrosion Resistant Characteristics is one of the most important factors in improving Vehicles' Durability. There are many things that can cause corrosion. We surveyed the climate, water, road conditions and the way vehicles are used in main regions of Thailand. The survey revealed that the vehicles are more susceptible to corrosion in Bangkok and in the East and South regions due to high humidity, high temperature and salty water (brackish water) than in other regions of Thailand. The findings of this survey had been used to establish vehicle corrosion protection suitable for Thailand.