After months of trying to find a true working diamond paste, I finally decided to try TechDiamondTools. The pricing was great and quite frankly the cheap diamond paste was just not working for me (yeah...i tried to go cheap). I've been trying to find a reliable way to get scratches out of mineral glass and most internet searches claimed it was very difficult. Not only could I not find a guide to do this, but couldn't find a grit guide to use for mineral glass. The first thing I did was message the TechDiamondTools and asked for guidance. They replied to me several times and have been very courteous and helpful. They recommended several grits to try, so I went ahead and ordered.
Here is what I used, and it works GREAT! Just be patient (this is the key to perfection).
Rotary Tool (Cheap) I also used an adjustable speed control rotary tool with 3/32 pro bits compatible that is used for nail manicures. It's electric. I did a search on Amazon and the no longer sell it, but Pinkiou looks similar and it's cheap. I don't recommend using a high speed Dremel. I have one and it goes way to fast.
I started with 600, then 1,500, 3,000, and finally 5,000 grit. The results were amazing!
Now to keep things in perspective, I did mess up and used sandpaper on one of my other watches. Used 100 grit and that was a mistake. The pictures I posted, I didn't use sandpaper. On the other watch, it did get all the scratches the sandpaper made, however it took a bit more of time. Next time I'm using 2,000/1,500 grit sandpaper. I've read that's what should be used before using diamond paste. I currently have a 14,000 grit that I can't decide whether to use for polishing since the 5,000 did a superb job. I may just return that 14,000 and use the 8,000 for final polishing.
Okay, back to the watch. the pictures are the result so the diamond paste. I "wish" that I had a picture of the watch before I even started, but I totally forgot to take some. The pictures are after I had already gone through using the 600 grit and the 1500 grit. As you can see the scratches I circled. Trust me before I started, these scratches were pretty bad. You could actually catch you fingernail on it. Not just a hairline scratch either. The final picture is the finished product, although it looks superb and flawless, I wonder what a final polish with 8,000 or 14,000 would do. I haven't tried that yet. Anyway, I am very pleased with DiamondTechTools, they actually worked with me to replace the 400 grit because it seemed watered down, but they made it right. As a hobby I work on Casio's digital watches and refurbish them, and the biggest problem with refurbishing is the scratches on the glass.
Well to end this, I'd like to say I did order the 400 grit paste and will start with that to see if it cuts back on my time. The pictures of the watch I posted took me about 3 hours to get the scratches out, I'm hoping with 400 grit, I'm able to cut that time in half. I don't like to used sand paper, but I will if there are a lot of bad scratches, then I will. Just don't use 100 grit like I did. Use 2,000 or 1,500. I'd also like to say, if you use this process, your result may vary. I want to say that because I'm a very meticulous person and I take my time. I'm only putting this out because this actually worked for me after all failed attempts with other diamond paste, and no I didn't get any free products from TechDiamondTools. If Amazon lets me, since I ordered like 6 syringes of different grits, I want to post more pictures of scratched up watches and the results. Hope this helps folks out there that have not found any documents on getting scratches out of mineral glass, because there really isn't any clear document that outline this.
Hope this help those watch enthusiast out there!! And thank you DiamondTechTools, ya'll are awesome and keep making those American Products GREAT!!!
TechDiamondTools Diamond Polishing Compound Polishing Paste USA Made 3,000 Grit 3-6 Microns for Marble Glass Metal Rock Jewel
4.4 | 3,051 ratings
Price: 12.98
Last update: 03-16-2025
About this item
OIL-BASED COMPOUND: we offer 1 item 5 gram syringe of industrial quality diamond polishing paste with 50% concentration of diamond powder, professional grade of 3000 Grit, 3 to 6 Microns which is most suitable for Fine Polish.
MADE IN USA: Forget other cheap polishing compounds! TechDiamondTools ultra precise, high strength polishing compounds ensure sustainable quality in any kind of application. Keep away from artificially colored abrasives. TechDiamondTools high-tech diamond compound has no color additives. It facilitates faster cutting and is safe for materials with high permeability.
USE OUR PRODUCTS AS: polishing compound, stropping compound, epoxy polishing paste, rock polishing compound, lapidary diamond paste, buffing compound, resin polishing, abrasive paste, metal polishing compound, granite compound. Use it both for manual and machine polishing. Best used with the wool buffs or leather strops.
SUITABLE FOR ANY SCENARIO: scratch genie, knife polishing compound, micron paste, mirror repair, glass watch scratch remover, watch polishing, crystal polishing, gun polishing, flattening, sharpening, knife sharpening, stock removal.
IDEAL FOR ALMOST ANY MATERIAL: glass, metal, ceramics, gemstone, marble, wood, steel, aluminum, granite, stainless, simichrome, rock, plastic, jewelers, brass, cerium, polyurethane, acrylic, rottenstone.
MADE IN USA: Forget other cheap polishing compounds! TechDiamondTools ultra precise, high strength polishing compounds ensure sustainable quality in any kind of application. Keep away from artificially colored abrasives. TechDiamondTools high-tech diamond compound has no color additives. It facilitates faster cutting and is safe for materials with high permeability.
USE OUR PRODUCTS AS: polishing compound, stropping compound, epoxy polishing paste, rock polishing compound, lapidary diamond paste, buffing compound, resin polishing, abrasive paste, metal polishing compound, granite compound. Use it both for manual and machine polishing. Best used with the wool buffs or leather strops.
SUITABLE FOR ANY SCENARIO: scratch genie, knife polishing compound, micron paste, mirror repair, glass watch scratch remover, watch polishing, crystal polishing, gun polishing, flattening, sharpening, knife sharpening, stock removal.
IDEAL FOR ALMOST ANY MATERIAL: glass, metal, ceramics, gemstone, marble, wood, steel, aluminum, granite, stainless, simichrome, rock, plastic, jewelers, brass, cerium, polyurethane, acrylic, rottenstone.
From the brand
TechDiamondTools
We offer variety of diamond tools for cutting, drilling, polishing, lapidary, and many other purposes e.g.
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TechdiamondTools
US made
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TechDiamondTools is a Silicon Valley based manufacturer of polishing diamond compounds of various usage. Since 2013, we have sold more than 50,000 polishing compounds. We have won the trust of customers in the USA and far beyond its borders.
We are extremely loyal to our clients and, therefore, we continually test new diamonds and powders to maintain the quality of our product and ensure that it always provides perfect results.
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Top reviews from the United States
Cisco Cabello
THE REAL DEAL DIAMOND PASTE!
Reviewed in the United States on October 10, 2020
Cisco Cabello
Reviewed in the United States on October 10, 2020
Here is what I used, and it works GREAT! Just be patient (this is the key to perfection).
Rotary Tool (Cheap) I also used an adjustable speed control rotary tool with 3/32 pro bits compatible that is used for nail manicures. It's electric. I did a search on Amazon and the no longer sell it, but Pinkiou looks similar and it's cheap. I don't recommend using a high speed Dremel. I have one and it goes way to fast.
I started with 600, then 1,500, 3,000, and finally 5,000 grit. The results were amazing!
Now to keep things in perspective, I did mess up and used sandpaper on one of my other watches. Used 100 grit and that was a mistake. The pictures I posted, I didn't use sandpaper. On the other watch, it did get all the scratches the sandpaper made, however it took a bit more of time. Next time I'm using 2,000/1,500 grit sandpaper. I've read that's what should be used before using diamond paste. I currently have a 14,000 grit that I can't decide whether to use for polishing since the 5,000 did a superb job. I may just return that 14,000 and use the 8,000 for final polishing.
Okay, back to the watch. the pictures are the result so the diamond paste. I "wish" that I had a picture of the watch before I even started, but I totally forgot to take some. The pictures are after I had already gone through using the 600 grit and the 1500 grit. As you can see the scratches I circled. Trust me before I started, these scratches were pretty bad. You could actually catch you fingernail on it. Not just a hairline scratch either. The final picture is the finished product, although it looks superb and flawless, I wonder what a final polish with 8,000 or 14,000 would do. I haven't tried that yet. Anyway, I am very pleased with DiamondTechTools, they actually worked with me to replace the 400 grit because it seemed watered down, but they made it right. As a hobby I work on Casio's digital watches and refurbish them, and the biggest problem with refurbishing is the scratches on the glass.
Well to end this, I'd like to say I did order the 400 grit paste and will start with that to see if it cuts back on my time. The pictures of the watch I posted took me about 3 hours to get the scratches out, I'm hoping with 400 grit, I'm able to cut that time in half. I don't like to used sand paper, but I will if there are a lot of bad scratches, then I will. Just don't use 100 grit like I did. Use 2,000 or 1,500. I'd also like to say, if you use this process, your result may vary. I want to say that because I'm a very meticulous person and I take my time. I'm only putting this out because this actually worked for me after all failed attempts with other diamond paste, and no I didn't get any free products from TechDiamondTools. If Amazon lets me, since I ordered like 6 syringes of different grits, I want to post more pictures of scratched up watches and the results. Hope this helps folks out there that have not found any documents on getting scratches out of mineral glass, because there really isn't any clear document that outline this.
Hope this help those watch enthusiast out there!! And thank you DiamondTechTools, ya'll are awesome and keep making those American Products GREAT!!!
Images in this review
Elliott Alme
Excellent Product!
Reviewed in the United States on July 5, 2024Bill Ying
Very useful product
Reviewed in the United States on August 7, 2024WhatsInAName?
It works for most surfaces, but beware with glass
Reviewed in the United States on June 1, 2024
hatuletoh
Shiny as a mirror, sharp enough to shave with
Reviewed in the United States on October 20, 2020
hatuletoh
Reviewed in the United States on October 20, 2020
As for my take on this diamond paste, well...I definitely did not expect the results I got. Or perhaps more accurately, I didn't expect the results to have the effects that they did. I used the 14K grit, 25% concentration diamond paste on a number of blade bevels following, firstly, a few passes on an 8000 grit, extra-extra fine DMT stone, or surgical black novoculite stone (occasionally I find a blade will finish better with one or the other for some reason), then a leather strop impregnated with white compound, and finally, on a second leather strop loaded with green compound. The diamond paste itself I smeared on a low-knap leather strop. I'm not yet neurotic enough to check my work under a microscope, but to the naked eye, the 14K grit paste gave the blade edge a nice mirror shine, as you can see on one of my Rowdy Hi-Techs in the pics.
I love the look of a mirrored edge (or entire blade for that matter; I wish more knifemakers would offer them), but I was definitely surprised by how much sharper the mirrored edges were. There's probably a metallurgist or materials engineer thinking, "no kidding, genius. A finer grit = smoother finish = sharper blade," but I really thought the benefits gained by the jump from maybe 10K grit with the green stropping compound to 14K grit would be functionally cosmetic. I was very wrong: in short, when properly utilized, this stuff makes your knives sharper, and the difference is significant enough that it can be felt with just the standard three-finger test grip on the cutting edge. This is my first purchase of a diamond-infused compound, so naturally I read through the majority of the (at time of writing) 200+ reviews before buying, and though overall positive, there were complaints about the consistency of the paste being too difficult to work with for stropping knives, the concentration being perceived as lower than advertised, etc. I realize that different product batches might vary in characteristics, and that the reviews for all the individual products with variable grit levels and diamond concentrations are conglomerated, but I still find myself at something of a loss to understand the complaints. If this product were priced at 50 to 125% higher like similar products, I might rate it as "good". But considering the much lower price along with the performance, I couldn't be happier with it, and will be purchasing finer grits immediately to see if maybe I can't get a blade edge to glow.
Images in this review
