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Thread: Dust Cap Glue Line

  1. #1
    Senior Member 1audiohack's Avatar
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    Dust Cap Glue Line

    I wonder just how thin one can make the dust cap glue line and have it endure. I am thinking I am going to find out! As you can tell I like them thin!

    These are done with Moyen.
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    If we knew what the hell we were doing, we wouldn't call it research would we.

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    Good question, the dustcaps have a chamfer on the underside to lay flush with the cone-I applied the moyen black stuff to that being generous on the inner edge so from the front they look very tidy indeed.
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    Senior Member grumpy's Avatar
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    I'd expect that unless you really hammered them, that would be fine.
    I actually find comfort in, and like the look of the thicker/stock line .
    Maybe Edgewound, GordonW, 4313B... (someone with significant experience
    and training) can give a better answer if they have the time and interest.

    I've only done this once, on an Altec driver, and it was a real goober job,
    not having the right glue -or- the experience. AHack or Cooky, how do you center
    the cap with the glue on it without making a mess (dryfit and mark first?)

    -grumpy

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    Senior Member 1audiohack's Avatar
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    AHack or Cooky, how do you center
    the cap with the glue on it without making a mess (dryfit and mark first?)
    Good question. There is no glue under mine besides what soaks in/under from the top.
    If we knew what the hell we were doing, we wouldn't call it research would we.

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    Senior Member herki the cat's Avatar
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    The Correct Moyen Cement for Dust Caps

    Quote Originally Posted by 1audiohack View Post
    Good question. There is no glue under mine besides what soaks in


    YES, Mr. 1audio hack, "dryfit and mark first," then apply the cement recommended in the following topic bellow with an appropriate hypodermic needle & syringe to both cone and underside of the cap edge; make shure the cement solvent wets the cone & cap paper surface. Rehearse the application mechanics with out cement first.

    This next topic commands a "Heads Up" to prevent a disaster.

    Quote Originally Posted by herki the cat View Post
    You must choose a cement that is not !" Based on "Acetone or MEK Solvents whose violent vapors trapped under the dust cap will melt the polyurethane foam plug located in the vent hole of the speaker-motor center pole-piece inside the voice coil. This melted polyurethane goop will run into the voice coil gap and gum up the the voice coil gap.... Note, Most JBL speakers have this foam plug.


    C. P. Moyen has "Toluene-Solvent Based Cements that are totally compatible with cone paper and cone edge foam

    C.P. Moyen Co. Inc. offers a comprehensive, "Industrial Adhesives, Epoxies, and coatings, printed catalog titled: "Product Selector guide" describing specific applications on "metal, paper, foam & cloth" in loud speaker Assembly, including identification of each Moyen Adhesive Solvent System, aka: Toluene, Methy Ethyl Ketone, Toluene, or water, each solvent depends on the speaker component to be cemented.

    Call C. P. Moyen Co., Customer Service at 1-847-67-6866, for the "Product Selector Guide."

    Cheers, herki the cat

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    Quote Originally Posted by grumpy View Post
    I've only done this once, on an Altec driver, and it was a real goober job,
    not having the right glue -or- the experience. AHack or Cooky, how do you center
    the cap with the glue on it without making a mess (dryfit and mark first?)

    -grumpy
    Hi Grumpy dry fit, line up then mask about 1" of outside area on cone with masking tape (then any goofs only get glue on masking tape) I then apply glue generously-about 2-3 mm thick line to the underside circumference and finally using blutack or masking tape to make a 'handle for the cap, place, locate then remove all tape and leave to dry-Bob's you your aunty.
    Cooky

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    Senior Member macaroonie's Avatar
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    Americans don't understand the last phrase at all

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    Senior Member 1audiohack's Avatar
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    Don't be too sure, I have friends from New Zealand, Austrailia and England.
    I would agree that most Americans don't know those phrases.
    If we knew what the hell we were doing, we wouldn't call it research would we.

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    Guys, we get Top Gear, Monty Python, Gordon Ramsay, Doctor Who, Faulty Towers, David Hobbs doing the F1 commentary, etc.

    Even I know Bob's nephew.

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    I make it a rule never to underestimate our transatlantic cousins
    http://en.wikipedia.org/wiki/Bob's_your_uncle

  11. #11
    Senior Member grumpy's Avatar
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    ... came through loud & clear on this end

    "Piece of pie, easy as cake"

    Disclosure: I did spend -some- time (not enough) in Oz a few years back.

  12. #12
    Senior Member 1audiohack's Avatar
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    Wow! I should turn on the TV once in a while.
    If we knew what the hell we were doing, we wouldn't call it research would we.

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    Quote Originally Posted by 1audiohack View Post
    Wow! I should turn on the TV once in a while.
    LOL, now I didn't say I watch all of that stuff, just that the hoi polloi might not be as ignorant as assumed. But I've seen some of it, probably all of the Monty Python episodes when I was growing up. I do watch Top Gear (semi-regularly) and F1 (regularly), and David Hobbs can't get through a race weekend without using the phrase in question.

  14. #14
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    I think is was George Bernard Shaw or Oscar Wilde who said we are "two nations separated by a common language"

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    Senior Member herki the cat's Avatar
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    Uncle Bobs

    Quote Originally Posted by cooky1257 View Post
    I make it a rule never to underestimate our transatlantic cousins
    http://en.wikipedia.org/wiki/Bob's_your_uncle
    'Uncle Bobs'. Generally meaning 'all will be well', and often used to indicate a successful outcome

    Say now! that is a very nice phrase..... Yankee cousins over here are still growing up.

    Spanish culture in Spain has 22,000 idiomatic phrases or short cut expressions, for example; "A Kema Ropa" translated, literally states "to burn your clothing" & it means "point blank". Generally the Spanish language is strong, it wastes no words & immediately gets to the point. Except for the Guitar and the Bull Fight, life is just too short in Spain.

    herki

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