My new favorite print sheet: Garolite G10  

My new favorite print sheet: Garolite G10

As you know I've been a tireless salesman for BIQU Cryogrip Pro sheets. So much so, that they should be paying me commissions.  Everything seems to stick to them and they don't require cleaning between prints (or ever for that matter) since they are finger print immune.

Where these sheets don't shine? TPU, PC and POM. For the first two (TPU and PC) they stick too well. In the case of TPU, without a separation layer, it can damage the sheet and the part trying to pry it off. With PC is sticks so well that when large parts cool, it lifts the sheet off the heated bed which warps the part. With POM (Acetal Delrin) it won't stick to the sheet at all (which is expected, this filament doesn't stick to anything and warps like a Pringles).   

So based on research (google) the best surface for POM is lightly sanded G10. So I picked up a square on Amazon for $20, stuck a 3m adhesive magnet sheet to the back of it, stuck it onto my Prusa smooth PEI sheet (which I no longer use). Lightly sanded the top and my POM prints stuck to it!!! So next I tried a large PC print. It stuck well to the sheet but then warped off of it. So I applied Nano Polymer Adhesive. It stuck so well that it bent the sheet off the bed (was due to the magnet sheet I stuck on the back). 

Next I purchased a G10 sheet on a rigid steel plate (not spring steel). It wasn't cheap ($80 USD) however it's beast. My PC and ASA parts stick to it extremely well and don't noticeably bend the sheet off of the bed. This also prevents the parts from warping (too much) when they cool. So now I do all my TPU, POM, PC and ASA printing on this sheet and use the Cryo for everything else.