Grand Logarithmic Grit Chart
Questions and Answers
Questions & Answers
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Recent Questions

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Guest  •  5 months ago
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⚙️Leading Edge  •  5 months ago
Venev uses the GOST 9206-80 standard.

GOST 9206-80 (for diamonds) uses an intuitive naming system for grit values: it directly indicates the main grit range. There are also adjacent and threshold ranges.

One of the features of the GOST 9206-80 classification is its easy-to-remember approach for all three ranges: main, adjacent, and threshold. It is only necessary to remember the micron sequence 1 – 2 – 3 – 5 – 7 – 10 – 14 – 20 – 28 – 40 – 60 for microgrits. The adjacent pair of numbers will be the main range for the same grit value (for example, 3/2 has a main range of 3 to 2 µm). The adjacent range is one step down (1 to 3 µm). The threshold range is another step down and one step up (0 to 5 µm).

Knowing this fact, now have a look at the Grit chart in the link below:

https://www.gritomatic.com/pages/grit...

You'll see that the GOST 9206-80 rating of 3/2 equates APPROXIMATELY to a JIS R 6001 rating of between 4000 and 6000 grit. This, however is only an approximation because the grit ratings, their tolerances and adjacent value ranges are very different. In many cases, some "equivalent" grit powders outperform a JIS 6001 powder due to the difference ratings used.

JIS ratings have very different values and wider allowed tolerances than some other grit ratings, in some cases worse than other ratings and in some cases better, so it is near impossible to exactly compare grit ratings with a definitive answer.

Another important fact to remember is that compounds on strops are less aggressive than compounds in hard bonds. This gives the stopping compound a scratch pattern significantly smoother than an equal grit in a hard bond. … See full answer »
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Guest  •  2 years ago
Hi, the Venev paste is marked with two numbers, e.g. 60/40, 20/14, etc. However, the order form on your site uses a single number only (e.g. 60, 40, 14, etc). Which number is it? In other words, if I need 7/5 and 3/2, what should I choose in the order form?
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Guitar Guy  •  2 years ago
Hello ill try to help seeing as no one else has jumped in. I purchased every Venev industrial diamond compound in every rated grit from the selection on the site(Gritomatic) and yes I see what you mean that they do have double numbers once you get them. Going by what I ordered I go by the first number I.E. I purchased 60,40,20,14,10,etc...etc... all the way down and they were marked 60/40,40/20,20/14,14/10,etc.. etc.. So like I said I go by 60 XXcourse, 40 XXcourse, 20course,14medium,etc.. etc... So long story short go by the first number because that's how you'll pick what you want from the site and that's how they are labeled on the site from Course to ultra fine. Hope this helps. Also just my opinion but I would suggest you get 60and40 for your extra course and course as they are both Orange color. 20and14 both for your medium course and medium as both are Blue. 10and5 as both are dark green and then 2and1 for ultra fine polishing as both are light green. That should cover all your needs and as stated in reviews of Venev stropping compound, you get a lot! guitarguy2474@gmail.com if i can help further.
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