This Jende Poly Diamond Emulsion is a top-quality stropping emulsion. You spread this liquid over a fine strop for fine stropping. With it you end up with razor-sharp pocket knives, kitchen knives, razors and wood carving tools. For the true sharpening enthusiast who is looking for the best, but also for the knife enthusiast who loves quick and easy stropping.
Jende Polychristalline Diamond Emulsion is very hard and aggressive. As a result it polishes quickly and leaves you with a very sharp edge. As such it is also great for harder types of steel. Think of modern types of super steel such as M390, 20CV, CTS-204P, S110V, S90V, Maxamet and others. But also for softer types of steel this emulsion is great. This way stropping is a lot faster enabling you to quickly 'fix' your edge.
Jende Poly Diamond Emulsions: the grain sizes
- Jende 4 micron Poly Diamond Emulsion: Japanese grain 4000
- Jende 2 micron Poly Diamond Emulsion: Japanese grain 8000
- Jende micron Poly Diamond Emulsion: Japanese grain 16000
- Jende 0.5 micron Poly Diamond Emulsion: Japanese grain 30000
- Jende 0.25 micron Poly Diamond Emulsion: Japanese grain 60000
- Jende 0.10 micron Poly Diamond Emulsion: Japanese grain 160000
- Jende 0.025 micron Poly Diamond Emulsion: Japanese grain 600000
Experience has taught us that a 4 micron is great after a Japanese 5000, the 2 micron after a Japanese 8000 stones, after which the steps speak for themselves.
For this spray use the Jende Nanocloth Ultra Strop 4 micron
Polychristalline diamond vs Monochristalline diamond
In the diamond sharpening category you can make a distinction between two types of diamond: polydiamond and monodiamond. Monodiamond sharpens even faster than polydiamond, but polydiamond will, according to some, leave you with a finer finish. It can be discussed, but in our experience the difference isn't that big.
Well begun is half done (or more!)
To get the most out of the stropping emulsion it is important to sharpen the edge before you strop it. The bottle tells you which (Japanese) grain size the emulsion can be compared to. We therefore recommend you take a step back compared to what you are used to when sharpening on water stones. The 4 micron (grain 4000 in Japanese stones) is, for instance, perfect after a grain 5000 water stone. Stropping, especially on leather, also ensures that the steel is burnished. This means that the grain size is always slightly finer while stropping. For that reason it is not a bad idea to continue with the same grain size on another medium (stropping).
We noticed that the emulsion is at its best on a fine strop. This means: the smooth side of the leather, fine balsa wood or NanoCloth. You could, of course, also use the rough side of the leather if you want to but our results were better on smooth leather.
How do you use Jende Poly Diamond Emulsions?
You add the liquid on a fine strop made from leather, balsa wood or NanoCloth. It is very important to find a good strop and clean it properly. After all, you don't want to find a lost grain of sand when you are stropping. Properly shake the bottle. Add a couple of drops over the entire length of the strop. You always start with the finest strop. Any fine sharpening grains that stick to your hands won't do any harm on a coarse strop, but the other way around they do. Carefully spread out the emulsion over the strop with the palm of your hand. Does the strop dry out and are you unable to fill the entire surface with emulsion? If so you need a couple of additional drops. Of course it is important not to waste anything. They are diamonds after all.
Once applied you wait until the strop is completely dry. Depending on the temperature and base this could take from one hour to half a day. It does have to be really dry otherwise you can easily scrape the emulsion of the strop which would be a shame. Once dry you can strop the way you always do. It is important to apply as little pressure as possible. Haste makes waste and all that. Let the strop do the work.
After a while you will notice that the strop won't work as well anymore. It is also when you start seeing dark, pencil grey marks on the strop. That is the steel you removed. At that moment it is time to carefully add new emulsion to the strop as is listed above.
After use it is important to carefully store the strop. Put it in a locked ziploc bag to make sure it doesn't get dirty. After all, you don't want to run into that lost grain of sand from before.