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.

27 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.
    Thanks,
    Mik­los

  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:
    MVCF-8S50K-Series
    MVCF-4S50K-Series

    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; https://www.caplinq.com/electrically-conductive-plastic-film.html?CAM#ProductSelectorGuide

  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.
    Cheers
    Nitin bhole

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