Grit/Mesh/Micron/Inches Chart

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1

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[TD=“bgcolor: #000080, align: center”][COLOR=#FFFFFF][B]Just thought you all might like this.

Regular Micro Mesh[/B][/COLOR]
[/TD]
[TD=“bgcolor: #000080, align: center”][COLOR=#FFFFFF]MicroMesh MX[/COLOR][/TD]
[TD=“bgcolor: #000080, align: center”][COLOR=#FFFFFF]Micro-Mesh AL[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #000080, align: center”][COLOR=#FFFFFF]Grit (US)[/COLOR][/TD]
[TD=“bgcolor: #000080, align: center”][COLOR=#FFFFFF]Microns[/COLOR][/TD]
[TD=“bgcolor: #000080, align: center”][COLOR=#FFFFFF]Inches[/COLOR][/TD]
[/TR]
[TR]
[TD=“align: center”] [/TD]
[TD=“align: center”] [/TD]
[TD=“align: center”] [COLOR=#808000]300[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]180[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]80[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0030[/TD]
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[TD=“align: center”] [/TD]
[TD=“align: center”] [COLOR=#800080]60[/COLOR][/TD]
[TD=“align: center”] [/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]230[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]60[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0024[/TD]
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[TR]
[TD=“align: center”] [/TD]
[TD=“align: center”] [COLOR=#800080]80[/COLOR][/TD]
[TD=“align: center”] [/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]280[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]45[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0018[/TD]
[/TR]
[TR]
[TD=“align: center”] [/TD]
[TD=“align: center”] [COLOR=#800080]100[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]600[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]320[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]40[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0016[/TD]
[/TR]
[TR]
[TD=“align: center”] [/TD]
[TD=“align: center”] [COLOR=#800080]150[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]800[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]360[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]35[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0014[/TD]
[/TR]
[TR]
[TD=“align: center”] [COLOR=#0000FF]1500[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]180[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]1500[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]400[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]30[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0012[/TD]
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[TD=“align: center”] [COLOR=#0000FF]1800[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]240[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]1800[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]600[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]15[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0006[/TD]
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[TD=“align: center”] [COLOR=#0000FF]2400[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]320[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]2400[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]900[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]12[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0005[/TD]
[/TR]
[TR]
[TD=“align: center”] [COLOR=#0000FF]3200[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]360[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]3200[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]1200[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]9[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0004[/TD]
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[TD=“align: center”] [COLOR=#0000FF]3600[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]400[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]3600[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]1350[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]8[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0003[/TD]
[/TR]
[TR]
[TD=“align: center”] [COLOR=#0000FF]4000[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]600[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]4000[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”]1500[/TD]
[TD=“bgcolor: #FFFFFF, align: center”]5[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0002[/TD]
[/TR]
[TR]
[TD=“align: center”] [COLOR=#0000FF]6000[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]800[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]6000[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”] [/TD]
[TD=“bgcolor: #FFFFFF, align: center”]4[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0002[/TD]
[/TR]
[TR]
[TD=“align: center”] [COLOR=#0000FF]8000[/COLOR][/TD]
[TD=“align: center”] [COLOR=#800080]1200[/COLOR][/TD]
[TD=“align: center”] [COLOR=#808000]8000[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”] [/TD]
[TD=“bgcolor: #FFFFFF, align: center”]3[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0001[/TD]
[/TR]
[TR]
[TD=“align: center”] [COLOR=#0000FF]12000[/COLOR][/TD]
[TD=“align: center”] [/TD]
[TD=“align: center”] [COLOR=#808000]12000[/COLOR][/TD]
[TD=“width: 4, align: center”] [/TD]
[TD=“width: 66, bgcolor: #FFFFFF, align: center”] [/TD]
[TD=“bgcolor: #FFFFFF, align: center”]2[/TD]
[TD=“bgcolor: #FFFFFF, align: center”] 0.0001[/TD]
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[SIZE=4][COLOR=#0000ff]Henry
[email protected]
GLASS SMART SERVICES
[/COLOR][/SIZE]

2

I was losing sleep last night…

what is it?

3

I learned from this forum group that a deep scratch is aprox .025 inch deep. If you check out the top of the chart a particle that is .0030 is rated at 180 grit and is 80 microns across. You could stand 8 to 9 of these particles on top of one another from the bottom of this scratch to the top. So a good sharp particle of this size should grind out such a scratch quite fast. On the other hand you would want a 3 to 5 micron particle for final polishing. Super polishing which we don’t do, is done with submicron particles. This was my only intention for posting the chart. I simply wanted to show everyone the dimensions we are working with. It helps to put things in perspective. More academic than anything else.

Henry
GLASS SMART SERVICES

4

I appreciate the explanation

yay, perhaps there can be a relational understanding between jflint/glass renu/others polishes, pads, sprays, powders and where they all line up after all

5

Henry,

This is great information. So being more on the technical side yourself can you translate this into some of the common products we as window cleaners use on glass? Say like steel wool, white scotch bright pads, Glass renew system, Mr. Hard water removal system, Other hard water removal products that contain cerium oxide or similar polishing abrasives etc…? I would love the information.

I have done a lot of talking with various manufacturers of these products and more, and have come to the conclusion that they themselves do not know the technical information behind their own products, as most are just re labeling the products produced by hired chemists and lab coat guys.

This is frustrating because most of us window cleaners don’t have the time or the knowledge to track down this info, but it is extremely important for us to understand it because we are the ones left holding the bag when damage is done. Not to mention we are the ones left trying to differentiate our service from the next guy which sometimes can come down to what products we are using and how well we know their benefits.

6

Hi Guys,

I know where you are going with this. It really is an interesting study to say the least. And one not very well understood. Over the last fifteen years there have been many products that have come onto the market. Most I am not familiar with. Although I do know how to test each one for safety. The key is in using brand new glass. When I had my little lab set up I wasted many one by one foot squares of window glass and mirror. This is opposite to how everyone else tests. They work with old glass stained by spots or etched.

As for manufacturers. Yes, for the most part they don’t REALLY know their products. This however is absolutely not the case with the Glass Renu people. I just had a very interesting talk with Cody on Monday. And did talk with Rick back in 2008. They certainly know their system. I also think the progress they have made in marketing it worldwide says much about the quality and practicality of it. I do advise anyone thinking of getting into this line of work to give Cole a call.

Regarding stain removal products based on loose abrasive compounds. The common denominator here is around four to five micron particle size. If it is an angular cut and friable, this is even better. Silicas are good. But ceriums work well too. Also aluminum oxides and more. Here is a very simple test for abrasive stain removers. A test for safety.

Rub the product hard on a brand new clean mirror square. Then apply even a 2 percent solution of hydrofluoric acid to half the area worked. Rinse and dry. Then look at the whole area in the dark with a flashlight. You will see everything. If the side that made contact with the acid is much more accentuated and appears scratched you have an unsafe product. If not you’re good to go.

This by the way is a very similar to the one I use to test liquid stain removal products for glass etchants. You take a brand new mirror square and scratch a good little patch with a green 3m pad. Then apply your product in question to half of these scratches. If the scratches are magnified fifty times over your product is unsafe. If not you’re good to go. Ever wonder about hydrochloric, acetic, sulfamic, phosphoric, and more? Do the test and you will know. Three etchants I can name here are hydrofluoric, sulfuric, and ammoniumbifluoride.

I will begin by picking up some of these new commercial products and testing them out. Also I can test out other products such as the white pads. Regarding steel wool. I always use the oooo. Have for years. My guess is that the iron is softer than glass. And so will not scratch. Regarding the hardness rating for particles and such, you should rather rely on the absolute hardness rating scale. Not the mohs scale.

Henry Grover Jr.
[email protected]
GLASS SMART SERVICES

7

I cant agree with this more… Cody is brilliant… And Cole has the power to make you understand how to use the system perfectly… They are booth very sharp.