odd coloring inside a new atty

[foebea]

Hiya guys, just opened up the packagijng to use the steel atty which came with my 510 protege. Just inside the lip on the inside of the atomizer is a pea sized spot of white something which appears to maybe be paint. I scrubbed at it a bit with a paper towel and could not modify it.

I have not seen a thing like this in other atties before. Is this not so abnormal a thing or should I slowly back away from this atomizer and use a different one?

Thanks all,
Foebs