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sharpening stone is baffling me!!!

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Forum topic by cdaniels posted 01-08-2016 10:44 PM 675 views 0 times favorited 7 replies Add to Favorites Watch
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cdaniels

1311 posts in 969 days


01-08-2016 10:44 PM

I have been using sharpening stones for a couple years ago since I was introduced to them from my time in japan. the thing that’s baffling me right now is why after I work up to a nice polish at 3000 then switch to anything higher it ruins the polish and loses it’s shine. I’ve gotten the same results with 5000, 6000 and 12000 grit king stones and it makes no sense. It just seems like once I hit the 3000 stone and get a mirror polish anything higher ruins it???

If anyone has an answer as to why this is going on I would like to hear it!!

Chris

-- Jesus was a carpenter... I'm just saying


7 replies so far

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walden

1552 posts in 1490 days


#1 posted 01-08-2016 10:56 PM

Is it adding scratches to the metal at the higher grits, or just making the metal cloudy in appearance?

-- "I am hiring a realtor if and when the day comes a lion is on my roof."

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walden

1552 posts in 1490 days


#2 posted 01-08-2016 10:59 PM

If its cloudy, I wouldn’t worry about it. This can happen if the stones are still relatively new and have not been used much. Your water might be contaminated with grit particles as well. Put each stone in fresh water and see if that helps.

-- "I am hiring a realtor if and when the day comes a lion is on my roof."

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Andre

1023 posts in 1273 days


#3 posted 01-08-2016 11:20 PM

I go from 1000 right to 8000 for the polish, only time I have seen some cloudy finish is on A2 steel and a bit on PMV-11. Usually takes a little more work to polish up a PMV-11. Waterstone’s grades are not that precise I find, have an old Norton 4000 stone that gives same polish as a 8000 stone? Do have a Lie Nielsen 10000 stone that does seem to give a slightly better finish? If you get the polish at 3000 why go any further?

-- Lifting one end of the plank.

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Arlin Eastman

3557 posts in 2029 days


#4 posted 01-09-2016 01:06 AM

Chris

I am kind of thinking that if it is really sharp at 3000 and has a nice polish why go further. Is it the polish you are after or the sharpness?

Good to see you posting again buddy

-- Please help me help other Vets click..> http://www.gofundme.com/m1abko.....It is always the right time, to do the right thing.

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waho6o9

7179 posts in 2044 days


#5 posted 01-09-2016 01:09 AM

A nagura stone creates a slurry, helps with the issues you have and is recommended

with 8k stones and higher. Good luck now .

View rwe2156's profile

rwe2156

2200 posts in 948 days


#6 posted 01-09-2016 01:23 PM

This happens on my 4000 but the 8000 polishes it out.

If its sharp don’t worry about it.

A few strokes on a strop will polish it right up.

-- Everything is a prototype thats why its one of a kind!!

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Rick M

7934 posts in 1847 days


#7 posted 01-09-2016 06:43 PM

There is no standard for “grit” and it varies between different types of abrasives. So 3000 of one stone type might be finer than 4000 of another stone type.

-- http://thewoodknack.blogspot.com/

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