This went the wrong way! 300 maybe. Different charts will have some differences, but 3000 went finer than previous, not courser.Dark Green = 30 Micron 3000 grit
The rest of the chart seems within a version of reality
This went the wrong way! 300 maybe. Different charts will have some differences, but 3000 went finer than previous, not courser.Dark Green = 30 Micron 3000 grit
30 micron is 600 grit.This went the wrong way! 300 maybe. Different charts will have some differences, but 3000 went finer than previous, not courser.
The rest of the chart seems within a version of reality
Ok, I looked at another set of film that I have which has the coffee/brown color and compared it with the slate color and the slate is a finer paper. It almost feels like the .3 white paper. So is the slate colored film second to last since it’s probably .5 and .3 is finer? Wish sellers would specify this stuff when they ship them lol.
Here is the source for my set. 3M Lapping Film Assortment 1 ea of 30,12,9,3,1,.5 & 0.3 micron 8.5 x 11 SHEETS | eBay
Ah. Your source has it wrong. Study his grit chart. Notice he is saying .5u is finer than .3u. Obviously very very wrong. The 30u is obviously wrong, as well. 30u cannot be finer than 12u and 9u! Looks like another seller who doesn't have a clue, just something to sell. Good product though, if it is the real thing. 3M is kinda the gold standard.
But I have never seen .5u 3M film. So that is a new one on me.
Ah. Your source has it wrong. Study his grit chart. Notice he is saying .5u is finer than .3u. Obviously very very wrong. The 30u is obviously wrong, as well. 30u cannot be finer than 12u and 9u! Looks like another seller who doesn't have a clue, just something to sell. Good product though, if it is the real thing. 3M is kinda the gold standard.
But I have never seen .5u 3M film. So that is a new one on me.
Colors? Maybe. But the grit ratings are wrong wrong wrong. Anyone can see that. And I still have never seen 3M .5u lapping film. Maybe someone else has.
Perfect and congratulations on the successful hone.I noticed that all the colors matched the 3m product colors, the only one that threw me off was the slate colored one. It felt extremly fine, almost to the white 0.3 grit which made it difficult to tell between the 2. The rest of the film is easily distinguishhable based on feel. I took mechanical engineering in college, we used this stuff when polishing metal samples after annealing to see the carbon structure under a microscope. Anyways, redid a few of my razors in the correct progression and it made a huge difference. I finished out the honeing with stropping with red polishing compound on a leather paddle strop. Made them quite sharp and better then before. Just wish my scales on my boker werent broken like they are, I am on the hunt for replacement scales for it. If i need to replace a sheet i will do so individually through a reputable place mentioned from here.
Okay, one last time. Please read this slowly and carefully. I will try not to use too many big words. The Seller's micron vs grit table is W R O N G. I am not talking about the colors, except that black or dark gray is usually used for 5u film, and that I was not aware that 3M even makes .5u film. I am talking about that table you are going by that correlates micron to grit size. The grit ratings are so utterly painfully obviously wrong. Can you not see it? And you are confusing newbies by quoting it. No, maybe you can't see it. Okay then. I won't mention it again.Did you look at the 3m site? Colors and micron match the seller’s discription.
I have been using film since April and see no reason to change. My only exception is that I just ordered a 1k Shapton for bevel setting. The 30u film seems to lose its “bite” too quickly. If you follow the film progression from 1u to diamond pasted balsa, your edges will be beyond belief.
The 30u is the only film I’ve had trouble with. I still prefer film over stones.Glad it's not just me - I've noticed that the 30u film (and 40u which I've also used) doesn't seem to last long when bevel setting. Of course I'm very new so it's more than likely caused by poor technique (and cheap razors I'm essentially buying to practice honing on), but still. I was surprised how quickly the films seem to lose their grinding abilities, to the extent I am tempted to go stone for bevel setting.
I daresay once I buy one stone, it's a slippery slope...
Colors, charts, grits, microns, sub microns, sticky back, non sticky back, pico paper, burrs, methods....
And you guys think rocks are confusing?
Good grief, man, you honed 50 razors for your adopted son.The 30u is the only film I’ve had trouble with. I still prefer film over stones.
We could all actually claim just that! Film is an abrasive just the same as stones are an abrasive. 1,4,8,16 shapton glass or other equivalent stones and your razor will shave very nicely. You had success because you did exactly what someone told you to do, you followed one system, didn’t deviate from it and voila, you got better and better.Actually it is not confusing at all. If you purchase the films I did and go from high to low on a marble slab, your razor will shave. There is no rock rubber who can claim the same.
We could all actually claim just that! Film is an abrasive just the same as stones are an abrasive. 1,4,8,16 shapton glass or other equivalent stones and your razor will shave very nicely. You had success because you did exactly what someone told you to do, you followed one system, didn’t deviate from it and voila, you got better and better.