There are lots of nice pictures on the internet of untreated OSB CNC-cut into chairs/tables/benches.
What can be done to the edge of the cut to have a clean surface with no strands and splinters? Other than gluing PVC edge banding (which ruins raw aesthetics and is often unpractical for non-linear cuts)
Best Answer
I'd tend to fall in the "OSB furniture sounds like a terrible idea" camp, but anyway...
Two steps come to mind - one is to seal the cut edges thoroughly using either a thin epoxy or a varnish/polyurethane type of product, to both bind small slivers and prevent or at least slow moisture intake and resultant edge swelling. The other is to sand the edges (you want to seal first, then sand so that sanding doesn't turn into peeling off slivers) - and you may want to seal again after sanding.