honing stones and lapping

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09-28-2009, 12:54 PM
DarioT

honing stones and lapping

I have a 1k stone an a 4000/8000 norton combo. Can I use the 1k to do the lapping on the 4/8 stone ?

Thanks
09-28-2009, 09:46 PM
59caddy

i also have the 4000/8000 and what i did was take another stone which just happen to be a 1000 and i wrapped it with 600 grit water sandpaper and it worked ok. i have honed several razors and got a great edge..
09-28-2009, 11:46 PM
dave5225

600 grit wet/dry paper is what Norton says to use . I use it and it works fine , for me . Lay the paper on a hard , flat surface , and move the hone in a figure "8" pattern on the paper , using plenty of water .
09-29-2009, 05:01 AM
randydance062449

I have the same hones and use the 1000 to perform a light/refresh lapping before each honing session. The purpose is to remove any built up swarf/junk on the hone and present a fresh cutting surface.

For heavier lapping use sandpaper, as mentioned, use with a pencil grid, or a DMT 325 grit diamond plate.

Eventually the 1000 will need a heavy lapping on sandpaper/diamond.
09-29-2009, 11:16 AM
DarioT

I already use the send paper like you all said. What I want to know is if I can use the 1000 stone instead the send paper to do the lapping on the 4/8k stone.
09-29-2009, 07:57 PM
randydance062449

Only for a lite "refresh" lapping.
09-29-2009, 08:02 PM
khaos

My two concerns would be:
a) grit contamination
b) what if your 1k is not flat itself?
09-29-2009, 08:11 PM
DarioT

Quote:

Originally Posted by khaos

My two concerns would be:
a) grit contamination
b) what if your 1k is not flat itself?

But there will be not a contamination with a sand paper too ?
09-29-2009, 08:13 PM
khaos

There will be if you lap too aggresively- but the bigger issue then is grits break off and scratch the hone. My issue with two stones being rubbed is they have the same bonding agent so they would *possibly* wear equally fast. Which is why I would be concerned and haven't tried it myself. I feel sandpaper (the better brands at least) is bonded more permanently- after all it is not designed to generate slurry/be lapped.
09-29-2009, 08:25 PM
DarioT

Quote:

Originally Posted by khaos

There will be if you lap too aggresively- but the bigger issue then is grits break off and scratch the hone. My issue with two stones being rubbed is they have the same bonding agent so they would *possibly* wear equally fast. Which is why I would be concerned and haven't tried it myself. I feel sandpaper (the better brands at least) is bonded more permanently- after all it is not designed to generate slurry/be lapped.

Well, sensible. But I could say that I can achieve a Finest laping usin a 1000 sotone then a 600 paper. Make sense ?
09-29-2009, 08:28 PM
khaos

I go up to 1200 paper but yeah. Your thinking is correct. I guess I would lap the 1k on a flat surface with sandpaper, and maybe finish lapping the 4k/8k on the 1k, but I would still be cautious.
09-29-2009, 09:20 PM
randydance062449

I have been using the Norton 1000 to refresh lap my Norton 4/8 for a couple of years. There is no cross contamination. Just rinse the 4/8 under running water and rub with a brush or your hand to remove any loose particles.
I have never had any embedded particles from either the 1000 Norton or from any sandpaper. But... I do not use a lot of pressure and I do not use poor quality sandpaper.

However, there have been a number of people who have experienced abrasive particles from sandpaper becoming embedded in the Norton 4/8 so be sure to check the hone with a spare razor or knife blade first.
09-29-2009, 09:37 PM
DarioT

Quote:

Originally Posted by randydance062449

I have been using the Norton 1000 to refresh lap my Norton 4/8 for a couple of years. There is no cross contamination. Just rinse the 4/8 under running water and rub with a brush or your hand to remove any loose particles.
I have never had any embedded particles from either the 1000 Norton or from any sandpaper. But... I do not use a lot of pressure and I do not use poor quality sandpaper.

However, there have been a number of people who have experienced abrasive particles from sandpaper becoming embedded in the Norton 4/8 so be sure to check the hone with a spare razor or knife blade first.

Thanks, in fact I was not happy with the results of lapping with a 600 sandpaper. I could even feel on my fingers some surface imperfections on the 8000k after 600 sand paper lapping.
09-30-2009, 01:36 AM
khaos

Quote:

Originally Posted by randydance062449

I have been using the Norton 1000 to refresh lap my Norton 4/8 for a couple of years. There is no cross contamination. Just rinse the 4/8 under running water and rub with a brush or your hand to remove any loose particles.
I have never had any embedded particles from either the 1000 Norton or from any sandpaper. But... I do not use a lot of pressure and I do not use poor quality sandpaper.

However, there have been a number of people who have experienced abrasive particles from sandpaper becoming embedded in the Norton 4/8 so be sure to check the hone with a spare razor or knife blade first.

Thanks for clearing that up. The only issue I've had with Sandpaper was too much pressure, and only with a Swaty. Since then I use a lot less pressure. Good to know that hones don't cross contaminate- I was very worried about that.
09-30-2009, 01:06 PM
BHChieftain

Not quite the same situation, but I use a DMT1200 to lap my BBW & coticule... works great.

-Chief