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Thread: Goop

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    Default Goop

    We have modular power supplies, we even have power supplies without internal wires... but the goop prevails. One might have thought they had figured out a better way by now.

    I must confess that when I recap a supply, I don't use any goop on the new capacitors.

    I know, it helps absorb vibrations, and support components in transit; I don't even know the difference between K-703/4/5 silicone adhesive sealant

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    PSUs would never pass drop test without the goop.

    Back in 2007, HP pretty much bankrupted Topower (PSU manufacturer) because the Blackbird 002's PSU would not pass their drop tests. They eventually had to fill the entire PSU with the potting material, essentially eating up any profit Topower had left in the unit.

    Also, the potting is used to help insulate magnetics to reduce "coil whine".

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    The manufacturer could vacuum varnish coils against whine, but I had no idea there was a drop test.

    Goop just looks so unprofessional, as well as hindering cooling.
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    Default

    Quote Originally Posted by ashiekh View Post
    Goop just looks so unprofessional, as well as hindering cooling.
    Cooling of... what? Line filtering parts don't get all that hot.

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    Capacitors, and I think jonnyGURU recently mentioned "The Corsair AXi series actually has a number of thermal sensors inside. But only one is reported by LINK because Corsair quickly discovered that customers flipped the shit out when they noticed their main transformer was regularly hitting 80°C."
    Last edited by ashiekh; 01-13-2018 at 09:01 PM.

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    The potting material is thermally conductive. That's part of what makes it so expensive.

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    Magic Smoke is offline If you see me than you did something wrong
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    Default

    Don't some PSU manufacturers use cheap goop that goes conductive as it ages?

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    Any hot glue variations suitable as electronics goop?

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    Hot glue melting and moving around the psu? Blocking the fan? Dripping all over the PC?
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    Here is one

    https://www.gamut.com/p/hot-melt-glu...200c1c93367a4c

    that claims to be for electronics

    Operating temperature 300F (Melting point 350F)
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    Last edited by ashiekh; 01-13-2018 at 08:50 PM.

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