Share 'Weird marks on molds after when working with hollow molds.'

I have recently ran into a problem with some of my molds.After de-molding I am getting weird spots that don't really qualify as water marks. (see attached) I have tried polishing molds, moved the temperature of the work environment to as high as 72 F and as low as 60 F, preheated the molds, washed and did all of the above. The problem first occured after the molds were washed before switching fro…