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Author Topic: Cleaning ceramic sharpeners  (Read 2442 times)

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Offline azshooter

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Cleaning ceramic sharpeners
« on: April 11, 2004, 08:13:06 AM »
I have two ceramic sharpeners.  These are the kind with two ceramic sticks that go into a block of wood.  That are well used and were so loaded with metal from years of sharpening that they had become smooth they would not sharpen the blade very well.  Having a swimming pool, I took a couple of ounces of muratic acid in a cut off two litre bottle and diluted it with a quart of so of water.  I dropped the rods in and the acid ate the metal from the rods that the knifes had deposited over the years.  Ceramic being glass is basicly impervous to acid so the rods were not hurt at all.  Carefully dispose of the acid bath and rinse down the rods with lots of fresh water after 10-15 min.  If you do this, I suggest you wear rubber gloves and goggles when doing this and do it in the outdoors away from animals and kids because of fumes etc.  Anyway now the ceramic rods are pretty much good as new.
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Offline Swamp Fox

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Cleaning ceramic sharpeners
« Reply #1 on: April 11, 2004, 02:39:17 PM »
I have a ceramic stone, called a Moon Stone, that came with instructions to use comet cleanser when it gets loaded. This has worked well for 20+ years.
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Offline azshooter

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Cleaning ceramic sharpeners
« Reply #2 on: April 16, 2004, 02:32:25 PM »
Quote from: Swamp Fox
I have a ceramic stone, called a Moon Stone, that came with instructions to use comet cleanser when it gets loaded. This has worked well for 20+ years.


I tried the comet trick previously - works ok on the super fine rods but would not even touch the course ones.
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Offline rickyp

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Cleaning ceramic sharpeners
« Reply #3 on: April 18, 2004, 08:41:18 AM »
food for thought.
Not all acids are safe with glass!  The acid could damage the ceramic sticks in ways you can not see

If you ever see a car window with etching  on them, That is done with an acid
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Offline savageT

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Cleaning ceramic sharpeners
« Reply #4 on: April 25, 2004, 04:47:55 AM »
Quote from: rickyp
food for thought.
Not all acids are safe with glass!  The acid could damage the ceramic sticks in ways you can not see

If you ever see a car window with etching  on them, That is done with an acid


The kind of acid that will attack glass is Hydrofluoric Acid....It is always packaged in plastic bottles, or glass bottles that are covered in plastic.  This acid goes after the silicon in the glass.

The semiconductor Industry uses hydrofluoric acid or mixture of HF/Ammonium Hydroxide to etch silicon wafers.

Jim
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Offline boneguru

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simple pink erasers work most of the time
« Reply #5 on: May 05, 2004, 05:46:11 AM »
some of the really dirty ones and the coarser grits may take more, but hey erasers are cheap easy and safe, R
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Offline MOGorilla

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Cleaning ceramic sharpeners
« Reply #6 on: May 05, 2004, 07:19:47 AM »
HydroFluoric acid is extremely toxic, and I think it is fairly regulated.  A surprisingly little amount of exposure to the skin can result in death.  If on the off chance anyone gets a hold of this, call a specialist for disposal immediately.
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Offline savageT

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Cleaning ceramic sharpeners
« Reply #7 on: May 05, 2004, 07:45:49 AM »
MOGorilla....You're correct when you state that (HF)hydrofluoric acid is extremely dangerous.......I always treated HF as one of the most dangerous of acids.  Proper safety gear (rubber gloves, rubber apron, full face shield, and fume hood) are required for its use.  It has this ability to burn deep into skin without stopping till it hits bone!!!  There really is no reason to use HF for the purposes mentioned earlier.
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Of all the things I've lost in my life, I miss my mind the most.

Offline azshooter

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Cleaning ceramic sharpeners
« Reply #8 on: May 05, 2004, 08:18:12 AM »
The average person would have a hard time getting Hydrofloric,  probably have to go to a chem supply company.  Hydrochloric on the other hand is cheap and works well.
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Offline Neanderthal

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Cleaning ceramic sharpeners
« Reply #9 on: May 07, 2004, 02:34:43 PM »
Comet cleanser with a brush works very well for me.  I have one of A.G.Russell's erasers, but as far as I'm concerned, nothing cleans ceramic rods as well or as easily as cleanser.
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Offline maddmaxx

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acid
« Reply #10 on: July 25, 2004, 03:03:10 PM »
Speaking of acid, I have a cyclopedia on stock doctoring from 1902. For a fresh bite from a rabid animal it reccommended a couple drops of nitric acid in the bite marks to kill the virus, or a redhot wire. Equally enjoyable, no doubt!
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