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Thread: Sage4, kirinite lava flow scales

  1. #1
    Spyderco Forum Registered User jackknifeh's Avatar
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    Sage4, kirinite lava flow scales

    I like this material more as I use it. Change the angle or type of light and it's 3-D qualities change. VERY easy to work with and even when smooth it provides a great grip.



    My EDC for a while. Stretch with carbon fiber handle, Chaparral 2, Dragonfly 2 with kirinite MOP handle, Manbug with bolster/red bone handle. Super blue/420J1 blades on all three (except Chaparral).

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    Spyderco Forum Registered User senorsquare's Avatar
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    Quote Originally Posted by jackknifeh View Post
    I like this material more as I use it. Change the angle or type of light and it's 3-D qualities change. VERY easy to work with and even when smooth it provides a great grip.


    Can you remind me where you got the material?

  3. #3
    Spyderco Forum Registered User jackknifeh's Avatar
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    Quote Originally Posted by senorsquare View Post
    Can you remind me where you got the material?
    These scales are of 1/8"x1.5"x5" lava flow.

    https://usaknifemaker.com/catalogsea...lt/?q=kirinite

    My EDC for a while. Stretch with carbon fiber handle, Chaparral 2, Dragonfly 2 with kirinite MOP handle, Manbug with bolster/red bone handle. Super blue/420J1 blades on all three (except Chaparral).

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    Spyderco Forum Registered User paladin's Avatar
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    Jack, is this material brittle...specifically, if you were to drop a moderately heavy knife like your S4, would they crack? thanks
    Have Kiwi, will travel...wire Paladin...Hotel Carlton, San Francisco

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    Spyderco Forum Registered User jackknifeh's Avatar
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    Quote Originally Posted by paladin View Post
    Jack, is this material brittle...specifically, if you were to drop a moderately heavy knife like your S4, would they crack? thanks
    It' hard to explain what this stuff is like. It is exactly the opposite of brittle. It is more like a plastic. I have screwed up a couple of pieces because I cut too much to fast. It is very soft in regard to working with it. Wood, G-10, micarta (especially) is much harder. If you drop your knife kirinite may dent but it won't chip, crack or break. It will NEVER break. I don't think it would be a good material in a hot environment. I don't mean hot like summer in Texas. I mean hot like hanging on a fire fighter's belt. I think it might melt.

    Hope this was helpful.

    My EDC for a while. Stretch with carbon fiber handle, Chaparral 2, Dragonfly 2 with kirinite MOP handle, Manbug with bolster/red bone handle. Super blue/420J1 blades on all three (except Chaparral).

  6. #6
    Spyderco Forum Registered User defenestrate's Avatar
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    I was wondering about the durability, but it looks really cool!
    I don't get mad. I get..Stabby.
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  7. #7
    Spyderco Forum Registered User jackknifeh's Avatar
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    Quote Originally Posted by defenestrate View Post
    I was wondering about the durability, but it looks really cool!
    From what I can tell this stuff is extremely durable. I have commented on how soft it is but that is strictly regarding working (cutting, sanding, drilling) with it. If I just had a knife or pistol with this material as the handle grips I would not be concerned. I emailed the vendor (USA Knifemakers) about any info on how heat resistant it is. I wonder about this material in hot places like a building on fire and a fire fighter having kirinite on him. At the moment I feel this stuff is about as durable as any knife handle would need to be.

    My EDC for a while. Stretch with carbon fiber handle, Chaparral 2, Dragonfly 2 with kirinite MOP handle, Manbug with bolster/red bone handle. Super blue/420J1 blades on all three (except Chaparral).

  8. #8
    Spyderco Forum Registered User nirvanero's Avatar
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    I guess that's the same Sage 4 you stonewashed, it seems you liked to pimp that knife... Nice looking, well done.

  9. #9
    Spyderco Forum Registered User kbuzbee's Avatar
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    Nice work, Jack!

    Quote Originally Posted by jackknifeh View Post
    From what I can tell this stuff is extremely durable.
    So does it compare to something like FRN?

    Ken
    玉鋼

  10. #10
    Spyderco Forum Registered User jackknifeh's Avatar
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    Quote Originally Posted by kbuzbee View Post
    Nice work, Jack!



    So does it compare to something like FRN?

    Ken
    I guess FRN is the closest thing to compare it to in my very limited experience. It's NOTHING like G-10, carbon fiber, wood, or anything I've worked with. I think FRN is liquid and poured into a mold. There isn't anything mysterious about this stuff (except how they get the color pattern ). I just don't know how to describe it. I like it so far. That's all I really know.

    Jack

    My EDC for a while. Stretch with carbon fiber handle, Chaparral 2, Dragonfly 2 with kirinite MOP handle, Manbug with bolster/red bone handle. Super blue/420J1 blades on all three (except Chaparral).

  11. #11
    Spyderco Forum Registered User phillipsted's Avatar
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    Jack - definitely looks nice - great job.

    I handled some of this scale material at Blade - and it is definitely curious stuff. The swirly colors look like old-time celluloid material used in antique pens. I concur that it is relatively soft, pliable stuff. Definitely not splintery like plexiglass. And it is a solid unreinforced thermoplastic similar to the moonglow material- which means that it doesn't have any substrate to stengthen it. This makes it potentially less durable than reinforced materials like FRN, FRCP, G10, and phenolic (micarta). I would definitely use low speeds on power tools to avoid melting/galling problems.

    TedP

  12. #12
    Spyderco Forum Registered User jackknifeh's Avatar
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    Quote Originally Posted by phillipsted View Post
    Jack - definitely looks nice - great job.

    I handled some of this scale material at Blade - and it is definitely curious stuff. The swirly colors look like old-time celluloid material used in antique pens. I concur that it is relatively soft, pliable stuff. Definitely not splintery like plexiglass. And it is a solid unreinforced thermoplastic similar to the moonglow material- which means that it doesn't have any substrate to stengthen it. This makes it potentially less durable than reinforced materials like FRN, FRCP, G10, and phenolic (micarta). I would definitely use low speeds on power tools to avoid melting/galling problems.

    TedP
    The first scale I made, after I got it shaped to the liner I was using a chamfer router bit (puts 45 deg angle around the edge) to shape the edges. This bit has a post that is supposed to slide along the outside of the material (not cutting) so the cut is the same around the whole piece. Since it is spinning I think it created enough heat to melt the material. This caused the bit to cut about 1/16" too far which would expose the liner. That was my first order of the stuff and the first scale I made. The one immediately after that I was more careful and was successful. Well, about a month later I placed another order. This allowed me to have a few weeks to forget how soft kirinite is and sure enough, I screwed up the first piece again. What's the word for people who make the same mistake over and over? I remember, it's stupid. Maybe I'll remember next time. Some day I may buy it in a larger sheet so I can have a similar pattern on opposite sides. Now I have red stripes along one side and a "no pattern" design on the other. Picking two areas of a sheet though would probably result in wasting a lot of material though.

    Since these scales are the same thickness as the stock G-10 scales I thought about putting my clip back on. I left all the other scales thicker and they won't work with a clip unless I try to bend the wires a bit. Or get longer clip screws. It's hard to bend wire clips exactly right for the right tension. Then I decided against it because I didn't want the clip covering up the pattern of my favorite side (RH, tip up). I'm not going to cut the clip grooves if I don't know if I want the clip mounted or not. I may make another set to use when I want the clip. Who knows? It only takes about 60 seconds to swap the scales on this knife and no real disassembly is required.

    Jack

    My EDC for a while. Stretch with carbon fiber handle, Chaparral 2, Dragonfly 2 with kirinite MOP handle, Manbug with bolster/red bone handle. Super blue/420J1 blades on all three (except Chaparral).

  13. #13
    Spyderco Forum Registered User Halfneck's Avatar
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    1st I saw of kirinite in handles was by Andy Roy of Fiddleback Knives. This year at BLADE I saw at least 5 other custom makers, plus a few Spyderco prototypes. Some of the colors are pretty cool, and I agree with phillipsted in how it looks like the celluloid scales used on old slipjoints.
    "A Delica is still a better weapon than a keyboard and a sour attitude..." Michael Janich

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