Use conductive plastic for emi shielding your house

LINQSTAT Volume Conductive Film for EMF Shielding

Have you ever wondered how you can best and most affordably EMF (electro-magnetic field) shield a room in your house? With LINQSTAT VCF (Volume Conductive Film) of course.

A direct equivalent to 3M Velostat (read the article on when is a generic brand good enough), LINQSTAT VCF is a very low cost (up to 50% cheaper than 3M Velostat), volume conductive film for EMI/RF shielding.

What’s the difference between volume conductive and just conductive?

Like its 3M Velostat equivalent, LINQSTAT VCF is a carbon impregnated black polyethylene film. The carbon impregnation gives it a volume conductivity that fends off EMF, but cannot be used to conduct electricity. Though an electrically conductive medium (such as tin or silver) could also be used for EMF shielding, these materials are many times more expensive and just simply not necessary for EMF Shielding or ESD (electro-static discharge) prevention.

The most cost-effective solution is with LINQSTAT VCF is 72″ wide x 150′ long rolls

The conductivity is not affected by aging or humidity and with a volume resistivity of <500 Ohms/cm and a surface resistivity of <31,000 ohms/cm2 the LINQSTAT is an excellent conductor for a plastic.

How thick is thick enough?

Though the LINQSTAT is available in various thicknesses, the normal thickness of 4mil (100µm or 0.004″) is recommended For extra toughness, heavy duty 8mil (200µm or 0.008″) thickness can be used, but the thickness implies more material which is more expensive, and shipping costs roughly double since the weight of the material is also doubled. If you really want to use 8mil thicknesses in some areas, then we recommend to simply put two layers of 4mil thickness instead. It’s much more cost-effective.

How else can I can it more cost-effective?

Certainly for large covering jobs like EMF shielding a room in your house (see our article on Cost-effective way to shield house from RF/EMI), you can think of this like EMF wallpaper; the wider the sheets, the better. Standard rolls are available in 36″(0.91 m) width and 72″ (1.83 m) widths. If you’re wondering how the heck you can handle a 72″ wide roll, let me reassure you that these are supplied in what’s known as a V-sheet. A V-sheet is simply a sheet that is 72″ wide folded over on itself. Therefore a 72″ wide roll is actually folded over on itself and supplied as a 36″ wide roll.

Secondly, the length of the roll matters. Standard lengths are 150′ (46m) and 750′ (229 m). Therefore instead of ordering 5 rolls of 150′ length, a single roll of 750′ length will do. To summarize the above information, it is more cost-effective to order a single roll of V-sheet 72″ wide by 750′ long LINQSTAT VCF than to order 10 rolls of 36″ wide by 150′ long rolls.

Where else can it be used?

As discussed here, LINQSTAT VCF can be used to line walls, windows and floors, but because it can be heat-sealed, it is also great for wrapping electrical wires, telephone cords and computer cords too. For these applications, a special tubing version is available.

CAPLINQ is a specialty plastics supplier offering a range of conductive materials including our broad range of electrically conductive plastics and antistatic tapes and films. If you have any questions, please don’t hesitate to contact us to find out how we can help you with other EMI/RF Shielding tips.

About Chris Perabo

Chris is an energetic and enthusiastic engineer and entrepreneur. He is always interested in taking highly technical subjects and distilling these to their essence so that even the layman can understand. He loves to get into the technical details of an issue and then understand how it can be useful for specific customers and applications. Chris is currently the Director of Business Development at CAPLINQ.

28 thoughts on “LINQSTAT Volume Conductive Film for EMF Shielding

  1. We are interested in your Linqstat conductive film (2mil, 3mil or 4mil). We currently buy conductive films and are looking for an alternataive. Please contact me as soon as possible.

    Purchasing Manager

  2. If I use this to cover my walls and ceiling will it also block RF (radio frequency) radiation as well

  3. Cris – Yes it will. The carbon-charged plastic is volume-conductive making it act like a Faraday cage. This acts as an electric shield and prevents Electromagnetic Interference (EMI) and is a Radio-Frequency (RF) radiation blocker.

  4. But I thought that the faraday cage was very ineffective.

    Oh yea, and i heard that velostat/linqstat scrambles microwave signals, not block them.

  5. I am interested in this Linqstat material. We have parts that come to us wrapped in Velostat. We have had problems with static electricity buildup and ESD on these parts. We work with explosives and this is a very undesirable situation. Does the Linqstat eliminate static buildup and ESD? Also, is the Linqstat coated with anything that might contaminate the parts?

  6. The LINQSTAT material has the same characteristics as the Velostat material – namely a carbon-loaded polyethylene with volume conductive properties. These properties eliminate the ESD static charge build-up and are used extensively in ordnance and explosives industries. The LINQSTAT material is not coated with any contaminants and to the layman would look and feel like a thick plastic sheeting.

    If you are used to getting parts “wrapped” in the LINQSTAT, the VCF-4xxxx-T-Series are tubing that might be best suited for your application.

  7. As you can imagine, CAPLINQ receives many, many requests for “free samples”. The manual entries, paperwork and ultimately costs that resulted from working outside our current workflow system (ensuring correct ship-to addresses, price quotes, samples lists, follow-up, etc.) was not in line with the low-cost model that we try to bring to our customers. As such, we have done away with minimum order quantities and implemented a way to order single units instead of shipping free samples. For the LINQSTAT, we offer 4mil (VCF-40054V/m) and 8mil (VCF-80036S/m) for sale by the meter for your convenience.

  8. hello..i require linqstat to make my own pressure sensors….is there any way in which i can procure the material on a very small scale?…are there any samples available?..

    please reply soon…

  9. I am going to use the velostat to be our sensor on the bed. Is it suitable to put under sheet to test whether human is on bed?

  10. Yes, many companies use the LINQSTAT material to design pressure sensors. Used on a bed, the LINQSTAT could sense whether there is pressure on the bed. It would not necessarily detect that it is a human, but that there is pressure.

  11. I’m interested in Linqstat EMF shielding for walls and ceiling for my bedroom, but will the room get too hot to sleep since its blocking RF and EMF ? Do you have to cover the floor as well? Is the percentage 99.9%? does this include the radiation as well? thanks!

  12. EMF Shielding prevention is best done using LINQSTAT VCF-40036S/2. The texture of the material is of plastic, and you can imagine that plastics are used in the construction industry as a moisture barrier, so it will have no serious effect on warmth within the house. The conductive plastic significantly reduces EMF radiation, but the only accurate way of measuring how much reduction is to measure it.

  13. Post is nice. This site is very helpful as it contains this blog which is providing the info about the emf shielding. I like it so much. I am having one query related to it? What is the price of linqstat vcf ? Reply as soon as possible………Awaiting for your reply!!!

  14. EMF Shielding is best done using LINQSTAT VCF-40036S/2. The texture of the material is of plastic, and you can imagine that plastics are used in the construction industry as a moisture barrier, so it will have no serious effect on warmth within the house. The conductive plastic significantly reduces EMF radiation, but the only accurate way of measuring how much reduction is to measure it. The prices are depending on the number of rolls purchased, but the full price list can be seen here:
    LINQSTAT VCF Price list

    Hope to have helped you!

  15. What is the maximum thickness in which the Linqstat sheet can be made available ?
    I need to use it for manufacturing a pressure transducer.

  16. I was interested in buying a smaler quantity of 8mil (VCF-80036S/m) and as stated, it is “for sale by the meter for your convenience”, yet I could not find this option on your site. Please advise how to proceed.

  17. Hello, I would like to purchase LINQSTAT VCF-40036S/2 for EMF/Radiation Shielding prevention for my home? Do you have this in stock? If so, what is total cost plus shipping?

  18. We have recently brought back the option to buy Linqstat products by the meter, but only for a select group of Linqstat materials. The materials you can order by the meter are:

    For the other Linqstat materials we still offer the option to buy single rolls of the other Linqstat materials, making it easy to acquire smaller amounts of material for testing and validation purposes.

  19. There are many potential manufacturing techniques but resistors based on film thicknesste chnology substrates provide high integration density that makes it ideal for applications where high power dissipation is required in a small area.
    When manufactured correctly using appropriate materials film thicknesste power resistors can handle several kW of power dissipation but they generate large amounts of heat which will fracture the resistor carrier plate if not kept under control.

  20. I am interested in using this material to make a piezoresistive force sensor. Do you know the piezoresistive properties of this material? Also how does the volume affect this property?

  21. Our Linqstat volume conductive films are very suitable for creating piezoresistive force sensors. We measure the piezoresistive properties by means of the volume resistivity of the material, which is indeed influenced by the volume. The volume resistivity reported on our product pages is the resistivity with no pressure applied, when pressure is applied to the film, and thus the volume reduced, the volume resistivity goes down. To see an overview of all our volume conductive films and their volume resistivity data please check out our product selector guide;

  22. Hi there
    I m a victim of remote neural monitoring which is done by electromagnetic fields. Is this material a useful shield against mind control and/or employee attacks.
    Nitin bhole

  23. I wholeheartedly congratulate the writer of this post for explaining the difficult concepts of data science in a simple and easy-to-understand manner. My only regret is that I didn’t read this post earlier. I have made many career decisions in my life after reading this, and have no regrets whatsoever to date.

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