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Life of a diamond stone

post #1 of 7
Thread Starter 
Anyone know the life of a diamond stone?

I had one that was pretty blackend up and then read the tip to clean it with base cleaner. Now it looks a lot better, all the black is gone but the center is still a little darker than the outsides. I've only really used it sparingly for a season or two so it can't be too worn out, or can it? It's a fine grit stone so its difficult to tell. Anyone know how long these guys last?
post #2 of 7
I've heard these last for years. Whatever you clean it with I don't think you will hurt it. I found an incredible cleaner called Goof-Off at Home Depot. I think it is in the paint section. Try some of that.

A few years ago I was using some kind of putty/sealer or whatever it was on my RV to seal some roof leak problems. It worked, but being clumsy in this I dripped a lot of it all over the front and hood of teh vehicle. It ended up looking like Chevy Chase's (brother's)Christmas vacation RV. I saw this Goof-Off stuff and tried it. Good Gawd! It cleaned up in a heartbeat! I wonder if it's mainly acetone? wow! What a cleaner. I'm not embarrrased to drive it anymore. [img]smile.gif[/img]
post #3 of 7
Don't know which brand you're using, so we can't really judge as to how the diamonds are set in there, but I've found these things have the failure modes of:

- Clogging/ saturation. If you use a cutting fluid, this problem goes away substantially. There has been a thread on this before (maybe search on Maplus and SVST) but 50/50 alcohol/water mix is about optimal. Isopropanol is cheap; I've also used blue Windex with great success.

- Pitting of the backing (non-flat matrix) Unlike an Arkansas stone, there is no way for you to fix this, or you'd be making diamond stones yourself. Time for a new one. You can test yours by resting it against a flat pane of glass, and making sure it cuts uniformly (diamond cuts glass, remember?)

- Loss of stones. See paragraph immediately preceding.

It sounds like you've some Ptex or oxide in the stone. Clean it off with your cutting fluid and a toothbrush, then rinse with water. There is no reason at all to use any harsher chemicals; you risk actually destroying the stone.

Clean them off and brush in cutting fluid every, say, 5 passes down the ski, and your stones will last long enough to be made obsolete. Yes, this leaves a bit of a cutting slurry on the ski base, but that's easy to clean.

- Edited to say I've 2 full black/blue/red/green sets now more than 5 years old, used on about 4 pairs of skis/week/season.

[ November 23, 2003, 10:55 AM: Message edited by: comprex ]
post #4 of 7
I believe I posted the tip of using 50/50 mix of Denatured Alcohol and water. I went to the MoonFlex web site and that was what they recommended. MoonFlex is made by an Italian company. I think Sorma. I used my 200 grit stone Saturday night with the 50/50 mix and a tooth brush. I cleaned the stone after every two runs down the edge. Then wiped the edge with a soft towel.

Use the stone wet with the 50/50 mix, it acts as a cutting fluid.
post #5 of 7
....is beautiful to behold, especially the metamorphosis.
post #6 of 7
I'm scared to use my new Moonflex stones.

They look like they can take some metal right off with no issues.


I have had some Swix and DMT diamond stones and they wear out pretty quickly.
post #7 of 7
The best Diamond Stone I've found for the money is THIS One.

It costs a little more than the standard DMT Brand stone where only about half of One surface surface had diamonds bonded to it. The RRS stone is Fully covered on Both sides! So I have found that it works faster and lasts longer than many others I've tried. It seems to stay sharp longer and also doesn't clog up as much IMO.
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