Cardboard Dust Cover for Graphics Card

I've been looking around online for an answer about the compatibility between Cardboard and PCB for the purpose of a Dust Cover. Found nothing, so I came here. The reason I'm thinking about this is because of two factors: one, that my Graphics Card's PCB is exposed and there is no backplate as some do these days, and two, my house is overly obscenely dusty.

I end up dusting my computer every week or so as I fear the graphics card, above all else, would short circuit somewhere on the exposed microchips and solder leads from the backplate.

I was thinking of custom-cutting a chunk of ~1/8th piece of cardboard for the GPU Backplate, leaving room for under the GPU Core, and leaving it on top of the GPU. As reference, I know that placing a Motherboard on the box it came in is usually good as an anti-static test bench/workspace, but I wanted to make sure it was okay in this regard.

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