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Thread: Talc for your strop, yes, no?

  1. #11
    Senior Member blabbermouth niftyshaving's Avatar
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    Quote Originally Posted by Brontosaurus View Post
    Thought I'd resurrect this thread, as I'm curious about adding talc to cotton and linen strops, in lieu of the Dovo/Solingen white paste. Anyone try this, or have further comments to make relative to leather break-in with talc as originally posted here? For example, I'd be curious to know if charging a coarse weave cotton belting with talc, followed by spraying it with strong hairspray would help to smooth things, etc., etc.
    I have taken my well used coarse DMT to a new woven fabric strop to soften the top of the bumps.
    I am a fan of a single modest application of a submicron spray.

    Chalk is interesting... It varies a lot and can contain a little or a lot of the micro amorphous siliceous
    bits from sponges, diatoms and more (can be good). I once read that the 'ultimate' edge for a steel
    microtome blade was had by using diatom rich chalk on a vibrating glass plate/table.

    Talc today should be so pure and soft that it might best be used to smooth a strop and reduce drag.
    It should be a do not care on canvas or nylon webbing. Hairspray or spray starch combined
    with talc or good chalk might fill in the fabric nicely.

    I have an old shell strop and the canvas is both much finer than newer strop fabrics but was
    also fully fixed with a grout like chalk? filler. It has minimum 'buzz' when the spine runs over it.
    I like it.

    The SRP strops make replacing the fabric easy as pie. Try stuff even the back of a strop.
    The back of a fabric strop is an ideal place to use 'stuff' like CrOx that the razor only needs
    to see once in awhile.

    The coarse modern canvas strops are one reason I love the hard wool strops so much.

    My Illinois 127 strop took a lot of abusive break in and now is almost black and has an
    almost polished surface with a lot of submicron abrasive in it. The black is oxidized steel
    that now contributes to the polish and abrasive on the strop. Iron oxides are harder than
    steel.

    I am old enough to have used slate blackboards and had to clean erasers outside on a
    corner of the brick building. If I had some of that chalk dust it would be on my strop yesterday.
    Most chalk today is gritty and would not see my strop.

    A spray starch and spent slurry from a 10+K japanese hone might also condition the
    back of a new strop. If you like it go for it.

    Two types of strop in my set, dirty black and finely abrasive very very fine that I reserve for
    the first stropping after honing and nice and clean for after first shave on until the the next time
    I hone.

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    Senior Member criswilson10's Avatar
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    I can verify that the use of talc on microtomes with either a vibrating plate or stropping on glass with talc. I do it every time I use a microtome.
    I haven't felt it necessary to take a razor that far, but.....
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    Senior Member Hacker7's Avatar
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    Just throwing this out there. Talc and chalk dust maybe harmful if inhaled. It is mined near the asbestos deposits. Like everything else be careful.

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    Senior Member blabbermouth niftyshaving's Avatar
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    Quote Originally Posted by Hacker7 View Post
    Just throwing this out there. Talc and chalk dust maybe harmful if inhaled. It is mined near the asbestos deposits. Like everything else be careful.
    The geologist in me woke up.
    Talc and asbestos before 1970 or so might have been a thing. It is not today.
    Chalk is not found near asbestos.

    Two kinds of diatomaceous earth... one is a much bigger hazard than the other food grade one.

    Any dust be it wood, plastic, glass, stone, steel, abrasive, grinding, buffing, makeup etc. should not be inhaled.
    So +1 be careful.

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    Very interesting thread. I hadn't really considered talc. I barely know enough to be dangerous. Of course, I don't know anything of a microtome. The talc, it seems to me, may add a bit of coarseness to help work the blade without the permanence of a paste. Am I understanding this correctly? Thanks!

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    Senior Member ZipZop's Avatar
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    Aloha!

    Hmmmm.....

    Well I have used Talc on one or two of my Strops in the past, but have not in quite a while. It's just not something I think of. Yet, now that I have been reminded because of this thread, I may initiate some talc to the stropping.

    There was recently a thread on HAND stropping. Now THAT seems like a perfect time for talc!

    Mahalo!

    -ZipZop
    "I get some lather and lather-up, then I get my razor and shave! Zip Zop, see that? My face Is ripped to shreads!"

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    Senior Member criswilson10's Avatar
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    Quote Originally Posted by 5G62 View Post
    Very interesting thread. I hadn't really considered talc. I barely know enough to be dangerous. Of course, I don't know anything of a microtome. The talc, it seems to me, may add a bit of coarseness to help work the blade without the permanence of a paste. Am I understanding this correctly? Thanks!
    On a microtome you are polishing a nano bevel with fine talc.
    While older microtomes look like straight razors, they are used more like a knife for slicing than scraping like a razor.
    Polishing a straight with talc could get it sharper, but it might also make the edge so thin that it crumbles.
    Just like using CBN or CrOx, the trick with talc is to know when to stop stropping with it.
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    Senior Member Brontosaurus's Avatar
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    As a follow-up to my earlier post, I rubbed the two sides of a dedicated Scupleworks cotton belting strop across the sharp edge of a steel block to break in the fibers a little, then I pasted one side with Solingen white tube paste and the other side with barber-shop talcum powder. The Solingen-pasted side felt little different than the coarse-grain cotton unbroken, but the talc-charged side, man oh man, did that not feel like softened dynamite! The only down-side was that talc powder was all over the blade afterwards, sending me to the local supermarket in search of a can of Niagara spray starch. Two passes with the starch, and hopefully, that will do the trick.

    Edit: Subsequent blowing off revealed some airborne talc, although nothing like before. Followed this by repeated hand-rubbing, generating significant heat, repeating this a couple times more, seeking to drive any standing talc into the fibers. Another blowing off revealed no noticeable airborne talc. So, again hopefully, all is in order now. Yes, probably best to wear a dust mask in doing this...
    Last edited by Brontosaurus; 06-12-2017 at 04:58 AM.
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    Mental Support Squad Pithor's Avatar
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    Actually, a couple of years ago, Bart Torfs suggested finishing on talcum powder on an (almost) dry coticule to go beyond the coticule's own keenness level after maxing out on water.

    It works, if you're looking for added keenness.

    I also just loaded my vintage cotton strop with chalk (the high-quality blackboard kind).

    First, paint on lather, let it dry until dry to the touch, rub onthe chalk until the fibres are clogged, then massage in a small amount of mineral oil, let dry overnight, rub/lightly brush off excess chalk.It's pretty much the same as the Dovo white paste.

    I've tried this before. It doesn't really add keenness, but it works great for keeping the edge in shape, I'd say slightly better than without.

    Best regards,

    Pieter
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    Senior Member blabbermouth
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    I have stropped on a number of fine abrasives years ago when, I went through that phase. Yes, they and talc is one I tried, do work to a degree.

    But the problem I had and have, is the unknown.

    CBN eliminated all that with quantitative numbers that deliver repeatable results. Pretty much on razor all I use now, is Chrome Oxide and CBN in a variety of spray grits.

    For most a bottle of CBN is a lifetime purchase, that will produce repeatable, stellar result of both keeness and comfort.
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