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Guide to Insulation Against Condensation

Extreme overclocking entails extreme cooling, and extreme cooling would require some measures against condensation. Here’s a rather detailed condensation prevention guide.

Here’s my guide to insulation on PC hardware and cooling devices. First of
all, let me list out the materials that will come in useful when it comes to
insulation during usage of extreme forms of cooling on PC hardware.


This is one of the most common material people use for insulation. It feels
like a cross between sponge and rubber but air cannot pass through it as it
is closed-cell. The common way to use it is to have it in between the hardware
and a clamping device.

Neoprene clamped against the back of the socket

Or to wrap it around waterblocks or cold plates with tape.


  • Compressible
  • Not permanent
  • Not messy
  • Easy to cut
  • Easy to use
  • Disadvantages

  • Requires clamping/wrapping pressure unless adhesive is used.
  • Cold can still seep through depending on pressure applied.
  • Neoprene piping/tubing insulation:

    This is very commonly used in the air-conditioning industry and is excellent
    for insulating pipings and tubings. There are grey foam-like versions which
    are even better at insulation but are more expensive.


  • Easy to cut and handle
  • Not messy
  • Not permanent
  • Very good for piping/tubing insulation.
  • Foam sheets:

    These dense styro-foam sheets have great insulation capabilities
    and come in many thickness.


  • Easy to cut and shape
  • Very good insulation properties
  • Disadvantages

  • Require clamping pressure or adhesive
  • Not quite compressible
  • Cork Seal tape or Seal String:

    This is the Seal String stuff that the Prometeia uses. This is very useful
    for hardware insulation, such as motherboards and video cards as it sticks
    very well without the need for any clamping pressure. It also eliminates all
    possible air pockets so condensation is avoided. It retains its stickiness even
    under very cold temperatures. However, surfaces must be clean and oil/grease
    free as it does not stick to oily surfaces.


  • Easy to cut to any shapes and sizes
  • Sticks very well and does
    not require any clamping device
  • Moldable like plasticine or blue tack
  • Disadvantages

  • Can be too sticky and thus a little tough to work with when it
    sticks to your fingers
  • When removing, due to its stickiness, there is a small
    chance that SMD components on the motherboard can be ripped off if the solder
    job was bad to begin with
  • Silicone:

    The clear RTV sealant variant works very well at protecting hardware from
    insulation. All air pockets can be eliminated with it and once it cures, it
    stays there for good.


  • Easy to apply to many areas
  • Very good at protecting hardware
    from condensation and corrosion
  • Disadvantages

  • Quite permanent
  • Difficult to remove totally, especially when
    it gets on the array of pins behind the motherboard
  • Small chance of eating into the PCB due to acidic content. However, I have personally tried many brands of silicone sealant before and none of them ate into my PCB.
  • Rather unsightly
  • Grease:
    Dielectric grease:

    The common essential stuff to use on CPU pins and motherboard socket holes
    for prevention of condensation and corrosion. Also used as a general touch up to
    areas where moisture is expected.


  • Non permanent
  • Easy to wash off
  • Can be applied to almost any
    area of hardware
  • Disadvantages

  • Can get quite messy
  • Makes your hardware very greasy
  • Silicone grease:

    This basically works similar to dielectric grease, but its less liquidy.


  • Non permanent
  • Easy to wash off
  • Can be applied to almost any
    area of hardware
  • Disadvantages

  • Can get quite messy
  • Makes your hardware very greasy
  • A little too sticky for socket holes
  • Thermal grease:

    The grease that we all use for our CPU and GPU cores can also be used to
    eliminate air-pockets and prevent corrosion. Take note that it should be
    something electrically non-conductive. Useful for areas around the core so that
    thermal interface is still good even if some gets onto the core.


  • Non permanent
  • Easy to wash off
  • Thermally conductive
  • Disadvantages

  • Can get quite messy
  • Makes your hardware very greasy
  • PCB lacquer spray:

    A spray that coats surfaces with a clear lacquer.


  • Invisible
  • Disadvantages

  • Although it prevents corrosion and shorting out of hardware,
    it does not prevent condensation
  • Suitable for large areas and not small areas
  • Nail Varnish:

    The clear nail varnish that women (and some men) use for their manicure can
    be used as a protective coating for your hardware.


  • Invisible and non permanent
  • Can be used to protect small areas
  • Disadvantages

  • Takes a long time when applying over large areas
  • TeamVR
    VR-Zone is a leading online technology news publication reporting on bleeding edge trends in PC and mobile gadgets, with in-depth reviews and commentaries.

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