Reply by Rich

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Posted on At what point do you apply your edge treatments?

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6141 posts in 1501 days

#1 posted 09-27-2020 09:42 PM

I m a sanding fool with my 220 ROS (I have two dedicated ROS s, 110 & 220) and I go over the essentially final project with it looking for “holidays”.

I use the 220 vs the 110 as I consider the 110 more of a shaping grit. The 220 is a lot more forgiving.

You said you go from 180 to 220, thats a small grit step. You can double grits from 110-220-440 without intermediate steps and get the same result. Its only the final grit that matters.

- Madmark2

I’ve never heard of 110 and 440 grit sandpaper. Where do you buy that? Are you sure you don’t mean 100, 220 and 400?

Regardless, the simple fact is that telling someone to go from 100 to 220 t0 400, is horrible advice. You can get away with skipping every other grit, but to go in such large jumps will give a really crappy finish.

It’s a shame too. Jamsomito is a sharp guy and will ignore that advice, but what about a newcomer on here wanting to learn more about woodworking? They could possibly think you’re right and it’ll ruin their chances for a quality finish (although even rank beginners are likely to already know that a 100-220-400 sequence is hogwash.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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