Regular Uses Of Collinite 840 Harmful To Car?

[JerryKit]

Hi there & good day to you all.

I'm driving a white car, so every single time it rains, there will be those black streaks formed, not sure how bad is it for regular usage of 840 but guess it's the only way to clean my car from constant long hours raining due to tropical country plus it's a monsoon season which cause black streak around trim areas, the hood, the bonnet, basically the whole car with black streaks.

My place definitely rains a lot, simply few times a week, i normally wash my car once a week, so i would like to ask can i use Collinite 840 to clean my car like once a week continuously? Will it ruin my car in a long run? I've already used 840 to clean the whole car for like 4 times for last & this month.

Attached some images of car with black streaks & car cleaned with Collinite 840 topped with Collinite 845.

Thanks