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Thread: Cermark shelf life

  1. #1
    Join Date
    Feb 2005
    Location
    North Carolina
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    118

    Cermark shelf life

    I was just given a jar of old Cermark. It says 'dmc2 degaussa Metals Catalysts Cerdec Corporation LMM-6000 Metal Marking Spray' (even though it's a paste) Label says 12 Oct 01. I'm wondering if it's still good. The pictures I see of Cermark shows it as a yellow/green paste. What I have is a medium gray with a hint of yellow.

    Dave
    Epilog Profile 25 watt w/rotary, Homemade CNC, Vinyl Cutter, VCarve 4, Corel X3, Photoshop, Illustrator, etc.

  2. #2
    Join Date
    Nov 2006
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    Innisfil Ontario Canada
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    quickest way to find out is to try it... Got a old knife blade?
    Epilog 24TT(somewhere between 35-45 watts), CorelX4, Photograv(the old one, it works!), HotStamping, Pantograph, Vulcanizer, PolymerPlatemaker, Sandblasting Cabinet, and a 30 year collection of Assorted 'Junque'

    Every time you make a typo, the errorists win

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  3. #3
    It may have separated a bit. I recall seeing some yellowish liquid separating out. Add some ethanol or denatured alcohol and stir well to get all the solids re-dissolved. If it works on a test item, it should be fine to use it.

  4. #4
    It should be fine. Take some of the paste and mix it with denatured alchohol. Mix it to a water consistancy.
    The only time I have seen it go bad, it was hard as a rock.

  5. #5
    Join Date
    Feb 2005
    Location
    North Carolina
    Posts
    118

    Looks like it still works...

    When I got home last night I did a test on an old knife. It was brushed on thinly, right from the jar. I used 10% speed, 100% power on a 25 watt machine.
    The 'B' in BearByte didn't catch all the Cermark, so it's only half done. I sanded vigorously the first part of the word with 240 grit for about a minute and a half to test durability. It stands up to more abuse than I thought.

    Dave
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    Epilog Profile 25 watt w/rotary, Homemade CNC, Vinyl Cutter, VCarve 4, Corel X3, Photoshop, Illustrator, etc.

  6. #6
    Join Date
    Oct 2005
    Location
    Moreton, Wirral, UK
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    I've still got my original batch of cermark and I keep it in a drawer away from sunlight. It's coming onto 2 years old and it still does the job 100% the way it did when I first got it.
    Epilog 45w Helix X3/X5 Corel Microflame Generator (flame polisher) Heat Bender


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