Should rain cause this many water marks?

[topless360]

I washed, clayed and waxed my car a couple of weeks ago, it's been sat in a garage since. Yesterday I had to take it out for a total of 3-5 minutes while it was raining. It was immediately put back into the garage and allowed to dry.

I went down to take a look today and the car looks filthy. It wasn't driven on the road in the rain at all, it was just on the drive for those few minutes.

Is it normal for rain to cause this much carnage on a freshly waxed car in such a short space of time?

[mon the fish]

It's the crap in the rain left behind when the water evaporates. Pain in the backside for looks, but nothing untoward

[Winky151]

Yep, pollutants in the air plus was it covered whilst in the garage as otherwise it will get dusty (I know, mine does).

[Samjeev]

not to mention it depends how the water is in your area.
Down here (brighton) we have really hard water, im so glad I don't have a black car anymore as it would look terrible if it wasn't 100% dried after a wash or after the tiniest of rain shower

[Craikeybaby]

How dusty is your garage?

[topless360]

Winky151 said:

Yep, pollutants in the air plus was it covered whilst in the garage as otherwise it will get dusty (I know, mine does).

It's not covered in the garage, it did have a very light covering of dust before I took it out but nowhere near as bad as after the rain.

I think maybe there were a lot of pollutants in the rain that day. I guess I'll take some glass cleaner to the engine bay cover and leave the rest till the next wash, it looks worst on the glass.

[Winky151]

It might not look that much in the garage but when the water beads in the rain so does the dust making it look worse after.