I am attempting to create a reasonably smooth finish with no burrs or splinters on a softwood 2x4. No matter what I do there are still thin layers of wood that splinter off, especially near some knots.
I have chiselled then rasped then used a plane then a cabinet scraper and finally 100 grit with a random orbital then 120, 140, and 220 but there are still little “flakes” that run along the grain that catch and splinter.
I have tried sanding with the grain, across the grain and diagonal. This is Home Depot quality construction grade softwood so I’m not expecting miracles but there’s got to be a technique I’m missing.
The reverse face of the board took very well to sanding.