White fans staining case?

[fhcgasrvjt]

I have 2 fans at the front of my case, they are both blowing in, the bottom fan is blowing against the storage modules (SSD, HDD, ect.) and the top one looks like some of the white coaking has came off, is that normal?
because i might want to send this case back some day...

 

[fhcgasrvjt]

never mind it was dust, i dont know how it looked white...

 

[Phillip Corcoran]

Probably looked white due to reflection.