Strange patches on Side Window Panel

[WingZero30]

Hi guys

I have storm trooper case and for few weeks I have noticed that for unknown reasons the following patches/markings have appeared on the window. On the inner side the surface has same texture/smoothness as rest of the window. However on the outside the surface feels 'dry/rough' where the patches are. I can't think of a single reason how these appeared and would love to get rid of these .

Any suggestion ??

Spoiler

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[Deleted member 77746]

what the heck - never seen this before! Does it scrape off?

 

[PC777]

Looks like could be microfractures within the tempered glass. If it was a stain on the surface it would clean off with white vinegar but it looks internal. Might need to RMA or ask for a replacement panel.

 

[HoneyBadger]

Looks like could be microfractures within the tempered glass. If it was a stain on the surface it would clean off with white vinegar but it looks internal. Might need to RMA or ask for a replacement panel.

I would agree with this assessment. It looks very similar to a Fractal Nano S side panel window I blasted too much with a compressor air gun. It almost was like it fractured internally.

 

[WingZero30]

Thanks guys for your help. It doesn't scrape off unfortunately. Just gonna have to contact Cooler Master now.