Sanding the inside of the bowl revisited

[Edward Wargo]

A couple of weeks ago I posted the thread regarding sanding the inside of the bowl. The post got quite a few responses and I incorporated the comments into my regimen.
Since then I have been very conscious of my sanding and striving for better results.
I am using a combination of sanding strips and sanding discs, running at 450 RPM, going through all the grits up to 320, followed up with several coats of sanding sealer and Yorkshire Grit.
I'm continuing to see lines, very small lines, but they are visible.

 

[Tom Beatty]

Are you sanding by hand or using a sander of some sort. I ask since I seem to have a heavy hand and I too seem to leave scratches. But when I use my inertia sander I don’t leave any

 

[Gerald Lawrence]

If you are hand sanding try sanding with the grain which disguises the scratches. Then the primary to get those scratches out is to back up 2-3 grits and sand again lightly to remove those older grit marks.

 

[john lucas]

Good comments above. I find some woods take a finer grit. I seldom need to go beyond 600 but almost always go to 400. Sanding scratches show much worse across the grain so if you can stop the wood and sand in the direction of the grain even courser grits will show less or not at all. I also sand with very light pressure as the final pass with each grit. It seems to even out the scratches and helps keep them to a minimum.

 

[robo hippy]

I think some one said that sanding scratches are invisible to the human eye at around 600 grit. So, if you are getting all the scratches out from the previous grit, then another grit or two up may make scratches invisible. I sand to 400, and then use the grey buffing type pads from Norton I think, to apply walnut oil. That removes anything I can see with glasses...

robo hippy

 

[Odie]

going through all the grits up to 320

Here's where you can improve, Ed.

For me, 600 grit is S.O.P.

I can remember a time when I dreaded the very fine grits.....but, if sanding procedures are done correctly, they are the easiest, and fastest grits to do. They use up sandpaper the fastest, but are quick to perform.......UNLESS we are attempting to eliminate scratches that should have been dealt with at a coarser grit......then, it's a bear!

My usual finish is Danish Oil Natural. There are times, and with some species and examples of wood, when I see ultra fine scratches that didn't show up until after the finish is applied and cured. Not to worry......even then, it's a simple procedure to eliminate these with 0000 steel wool, and modicum of elbow grease.

-----odie-----