There are two types of top coating: hydrophobicity top coating and hydrophilia top coating. But what is the difference between them? Which one is better?
Actually they have both their own advantages:
For hydrophobicity type, the water will go away quickly on the car body, so, there will be almost no trace after raining or washing.
But for hydrophilia type, the top coating will be thicker then normal, so the protect performance will be better, and the anti-yellowing ability and anti-scratch ability will be better than hydrophobicity type.
Please see the movie, it's the comparation of these two types, the left one is hydrophilia type, and the right one is hydrophobicity type.
