Bought the naniwa pro set and I see my 3k starting to craze..... should I return my 5 and 10k? I would hate to see them crack and become useless...
Thoughts, opinions, remidies?
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Bought the naniwa pro set and I see my 3k starting to craze..... should I return my 5 and 10k? I would hate to see them crack and become useless...
Thoughts, opinions, remidies?
Numerous threads on this. I have 1k 3k and 5k Choseras. I make a point of not soaking and drying them slowly. The 5k, which is notorious for checking, is doing fine with this slow drying so far.
My 5 and 10k choseras are crazed. So far they work fine. IIRC holli4pirating had his 1k chosera crack/craze must be 5 years ago. AFAIK it is still fine for honing razors.
So I shouldn't be worried about this?
I have contacted the vendor and I can return the 3,5 and 10k.
If the cracking is not detrimental I will keep the new pro stones but if it willing be in the future. I will return and pick up the new super stones.
i had two naniwa pro 5k (from different vendors) and both cracked after a just a few months. i knew they are prone to cracking and therefore used them carefully. but still...
as a replacement, i bought a naniwa super stone 5k. it behaves as it should. i have never had any problems with my naniwa pro 400 and 1k.
regards,
hans
Has anyone seen crazing transition to actual cracking?
Wow...I've read about the cracking issue, but you haven't even had these a week right?
Can you feel it when you brush your finger pad across the stone? Have you tried running a sharpened toothpick across them to see if it catches? I'd say if you can't feel it, and the toothpick doesn't catch, then it's just a visual defect and not worth fussing over. If it can be felt or it catches then as new as they are I'd be looking to return them.
I just took an early 1900s Gillette DE blade and ran it across my 5, and my 10k and didn't feel anything from the crazing. OTOH, if I had it to do over I'd take the superstones over the choseras just because of this issue. So if it was me I'd swap those out that you can.Quote:
Originally Posted by Marshal
There is another thread about the Shapton pros being made for USA humidity conditions, and another like of Shaptons that are basically the same but with a different binder being made for Japan. I do have a friend who had a 12k (the Japanese counterpart to the USA 15k) and it crazed. So you pays your money and you takes your chances.
My 1k started getting spiderweb cracks in it years ago. It doesn't see as much use as it used to, but the hone is still just fine every time I pull it out for use. I can't feel it when honing, and I've seen no ill effects on my bevels.
Quote:
Originally Posted by Marshal
No I can't feel them I am just freaking out. Paranoid now. That's a big sum of money I spent on this new naniwa set. I just don't want the crazing to turn into cracking to turn into a giant waste of money.
My new Chosera 1k shows some crazing after drying, but then I wet it again for a honing session and it is glass smooth, so I'm not worried about it for now.
This guy has had the problem with the pro stones cracking.Quote:
Originally Posted by Utopian
How are your pro stones Ron, crazy or craze...less?
For that money, I wouldn't accept anything less than first quality.
I think I know how you feel, because I'm in the same boat, and I know how I feel. At least you've had it happen quick enough to get some satisfaction from your seller. My only hope is that the crazing doesn't get worse. I'm reassured somewhat by Dylan's Chosera 1k still being useful, in spite of the crazing he experienced years ago. Six years ago to be precise ;
http://straightrazorpalace.com/hones...tml#post720480
Quote:
Originally Posted by JimmyHAD
It is an uneasy feeling. Hopefully I can make a decision. I've got 2 days before they arrive. Return or keep. That is the question.
My 8k SS looked great when I first got it but a crack showed up the first time I used it. I think the crack was already there but it wasn't visible until some particles filled it in. It's been a few years now and the crack hasn't changed at all. I think it's a result of the curing process during manufacturing. It's just a cosmetic issue and doesn't affect the honing process at all.
Attachment 256222
Hmm interesting... you guys are slowly giving me more faith. I want to keep the pro stones. I just don't want to have to buy new ones come a year later.
I just checked mine and all of them are fine except for the 5k, which does have some crazing on about two inches of one end.Quote:
Originally Posted by S0LITARYS0LDIER
I've had my 5k, 8k and 12k naniwa ss for 10ish months. The 5 and 8 are fine, the the 12k has some longitudinal cracks. I would take a picture, but are hard to see. No issues whatsoever. Since I take care of the 12k the best (consistent use, least amount of water and am always gentle) and near abusive to the others (mixed rapid and slow drying, lightly dampening and heavy soaking), my conclusion is it is most likely small inconsistencies in the binders.
Dinnermint, thank you for sharing. These stories are welcomed. I have heard the binder in the pro is more fragile than the resin based super stones.
Still I've now seen even the super stones can crack.
My theory is that if you give it a quick refresh woth a dmt plate before honing on it, any crack is simple below the surface of the abrasive plane of the stone. Shouldn't affect the blade's edge, especially if they're longitudinal or at any angle really.Quote:
Originally Posted by S0LITARYS0LDIER
I have 3 Nanis. Green 1K, Light blue 1K, 12K superstone.
I won't soak any of them.
I tried soaking the 12k and thought it was all-over as it literally twisted on me.
Let it dry out and sorted it, it is fine.
Water them good a while before honing and resurfacing. That brown Naniwa brown turd rock is great as well as a well-worn DMT 325!
Let them dry after use.
The 4/8 Norton lives in the water!
My 1k and 5 k super stones both have the crazing, almost 4 years on them and their still fine, I don't feel any cracks or spots that catch, I bought a pro1k so the as 1doesnt get any work other than kitchen knives, but the 5k does and no ill effects. Tc
+ 1. Truth be told if I had just stuck with the Nortons and not bought anything but a 12k superstone I'd be way ahead of the game. Hindsight being 20-20.Quote:
Originally Posted by sharptonn
I have or have gone through 16 SuperStones. None of them ever have shown any sign of crazing or cracking.
I've hardly touched my Nortons since getting the Super Stones.Quote:
Originally Posted by JimmyHAD
Seems what I have done, Jimmy. Cannot get away from the 4/8 Norton?Quote:
Originally Posted by JimmyHAD
My 1k is perfect but my 5 & 10 are cracked.
It didn't effect the honing but seeing the 10k cracking was distressing.
I've packed them away and just stick to naguras now...
yes. it started with crazing, that became worse and worse. the stones bent and finally had wide cracks, perpendicular to the honing surface but also to the sides, which rendered the stones completely useless.Quote:
Originally Posted by Utopian
my 5k pros were pretty thirsty. as i don't like to hone on a just damp surface i had to add quite a lot of water. maybe it was too much, but these are water stones, aren't they! another mistake i may have made is to use one side only most of the time. this side probably expanded more when wet than the other, dryer side, which caused some stress inside the stone.
as i have mentioned earlier, i am happy with the 5k super stone and the 400 and 1k pros. i usually jump from the 5k SS to natural stones, so i have never used a synthetic stone finer than 5k.
needless to say that i can't recommend the naniwa professional 5k. to me these stones are too fragile and not the workhorses synthetic stones should be.
regards,
hans
Have the Chosera 1k, naniwa ss 1, 3, 5, 8, 10, 12 and soak the lot often for 15 minutes or so still they stabilize just like Glen does in his YouTube vids. Once done dry off and pop on the table till dry and pack away. Never seen any sgn of twists cracking or crazing.
They do seem to react with water and swell? Might be something in the splash and go just swelling the surface while the rest stays rigid and dry?
Hmm Hans your story is not making me feel good about this.
Leaning more to returning them now.
It's funny when I had them in my cart and was deciding between the two I never even thought of this issue.
Interesting thread. I have the old Naniwa SS 1K, 3K, 8K and 12K stones. Never had, touch wood, a problem with them crazing. I just spray some water on them, hone and when finished wipe dry and set aside to air dry before storing. I do have an old 3K/8K combo stone that likes to warp/cup. Personally I think that is from having the two different grits glued together and you have differential drying going on. It eventually will return to flat but it sure does make you wonder when you first encounter that.
Bob
It sounds sort of like marrying a good solid '6'. Does everything that you need it to do but it can't help but make you think, 'Could I have done better?'
I have 6 Naniwa superstones and a 1k chosera They are all about 8 months old. I found a site still selling superstones, so I restocked my older models. All of mine are 20mm thick and all of them are on the old stands. Like eddy79 I soak all of mine for 5 to 10 mins before use. I have no issues with cracking or any damage. None of them have twisted or warped. I can add that the 5 superstones that I replaced were 3 or 4 years old and I had no problems at all. I think there must be a common denominator as to the crazing/cracking. Is the stands the SS were on an issue, or perhaps the differing width (10mm v 20mm) What is clear is that quite few have had this problem and maybe those guys get together and write to Naniwa as a group.
All I can say is ....................
https://www.youtube.com/watch?v=wKcHMJlE7OM
Hehehe. The only thing I dislike about the Nortons is the thirsty 1K hone, and the fact that the line stops at 8K. Maybe one day they'll give us a 12 or 16K. A man can dream...Quote:
Originally Posted by JimmyHAD
I guess I can live with the 1K as is, but it'd be nice if they came out with a less thirsty version of that and maybe a 400-ish grit stone that didn't turn to mud.
Because they are tool hones, I doubt that ever will happen.
I sold my 4/8 combo years ago and bought the single grit 4k and 8k. Gave away the 1k to a local guy back then and bought the chosera 1k. Never regretted those moves. The 4k stays in water in a sealed tupperware container. The 8k is splash and go as Norton specifies in the brochure that comes with the stone. One great thing about the Nortons is they are not effected by atmospheric conditions the way these Japanese synthetics seem to be.Quote:
Originally Posted by Marshal
All of the synthetics Norton, Chosera, SuperStones, Shaptons, you name it, are tool hones aren't they ?Quote:
Originally Posted by Utopian
I guess that depends on who is doing the honing. :angel::hmmm:;)Quote:
Originally Posted by JimmyHAD
Bob
