EMF blocking window film

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EMF blocking window film

emf_sensitive
Hello everyone, new member here.
I recently purchased and am going to install EMF blocking window film on my car windows. I've read that the film is designed for home (flat) windows and it can be challenging to apply it to vehicle (curved) windows). Has anyone done this? Any tips or advice? Trying to learn all I can before giving it a go.
Thanks,
Sam
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Re: EMF blocking window film

sailplane
emf_sensitive wrote
Hello everyone, new member here.
I recently purchased and am going to install EMF blocking window film on my car windows. I've read that the film is designed for home (flat) windows and it can be challenging to apply it to vehicle (curved) windows). Has anyone done this? Any tips or advice? Trying to learn all I can before giving it a go.
Thanks,
Sam
The Home Depot reflective one blocks a lot.. maybe 99% or more. It is hard to apply yes.. If you have experience you can do it though, I have it on my car but I did screw up a little in some places because it was my first time. Tinting shops will not want to try it usually, they know their film and won't touch another. I did the rear windshield in 3 pieces. First lay it on top of the window, then you can cut it up and install it on the under side.. one big piece at the top and two smaller around the brake light. Can't even tell that it was cut up, because it joins together again perfectly.

I tried a bluish metallic film I ordered online, specifically for cars.. it doesn't block almost anything.
There are several metal films online.. all metal films, even those for car, are known to be hard to apply..
This one was very easy though, came perfect, but no reduction ..
I am a bit skeptical about doing the windows though, because RF will come in through the windshield, so you're creating a box where RF gets trapped?

The rear windshield makes sense because most cars have radar beams in the front these days and it's very directional.


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Re: EMF blocking window film

Marc Martin
Administrator
Well you could do all the windows, including the windshield and the rear windows.  My wife had that done with UV film for her car.  You could even take it to a place that specializes in car window film installation, and you provide them the film instead of them using what they'd normally use for car window tinting.
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Re: EMF blocking window film

Karl
In reply to this post by emf_sensitive
If you buy another car in the future, there are several types with flat windows and windshields...

The easiest to shield is probably a Grumman Kubvan, but those are very rare. The next easiest is probably a stepvan (like an ice cream truck or a food truck), a little bit too big for most people but very easy to modify. And after that a Jeep Wrangler or a military surplus Humvee (or a Hummer if you can afford it). All of those except possibly the Jeep are available with fully mechanical diesel engines (i.e. no spark plug EMF).
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Re: EMF blocking window film

davidrsnell
There are a lot of films listed at HomeDepot.com.  Does anyone have a solid recommendation on which film would work best for installing in a minivan?

I am thinking of installng it on all windows, and having absorbent materials inside to absorb any stray radiation that gets inside (using biomass in the form of candy, which I've found to be cheap and effective.)
"Health, Safety & Financial Freedom for All"
David R. Snell, President
FreeKindPosters.org and GoodLifeMission.com
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Re: EMF blocking window film

Karl
The specific type that was recommended for blocking RF was Gila Titanium. Sailplane put it on his car, and he said it was quite difficult to install.

One thing to watch out for is that the electrical conductivity of the film depends on exactly how the metallic coating is applied, and there's no guarantee that the manufacturer won't change that.
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Re: EMF blocking window film

emf_sensitive
In reply to this post by davidrsnell
Thanks to everyone for their insights and advice. If it can be of help to others, I'll summarize the product I used and my experience:

This is the window film I had installed:
https://safelivingtechnologies.com/products/rf-shielding-window-film/
It's called "Signal Protect - Clear"

If you go with this window film, my advice is as follows: before purchasing it from SLT, call around and find someone who will install it for you. As others on the forum have said and as I personally experienced, window tinting professionals are not keen to install a product they're not familiar with, but some will. Strap in and make the phone calls. Eventually you'll find someone who'll do it.

I watched the install video a dozen times and bought everything they said I needed to install it myself but I didn't feel confident about it. I got lucky and last minute found an installer. After seeing how they work, I'm glad I didn't try it myself. I think I would've done fine on the flatter side windows but I wouldn't have had a shot at the front curved window. The guy I had install mine had been installing film for 30 years, he had all the tools of the trade and had an assistant helping him. With all that he messed up a small section of it. He said the film was challenging to work with. I was happy with the job because there's no chance I could've done any better.

The film looks great. Theres no tint to it so no shading just gives the windows a glossy look like you shined them up real good.
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Re: EMF blocking window film

emf_sensitive
In reply to this post by davidrsnell
@davidrsnell you said you use candy to absorb radiation? Can you help a newbie understand. Does candy have any particular properties that make it good at absorbing RFs maybe i'm missing something
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Re: EMF blocking window film

davidrsnell
Any kind of biomass will simulate the human body to some extent, and thus it will absorb EMF of all kinds (RF, Magnetic, Electrical) in my experience.  Twizzlers candy is cheap and it comes in a package that you can tile.  Problem is that the candy inside tends to sag and even break, if you move it much.  But you can stiffen it with cardboard backing and tape it to prevent leaks, using $1 rolls of packing tape that you can buy at Dollar Tree or Wal-Mart in 4-packs.
"Health, Safety & Financial Freedom for All"
David R. Snell, President
FreeKindPosters.org and GoodLifeMission.com
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Neo
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Re: EMF blocking window film

Neo
In reply to this post by emf_sensitive
I tinted all three windows in my cargo van.  The two door windows are fairly flat so I did them myself without needing a heat gun. I'm fairly happy with it, but took like a month to dry the water spots out in the sun.

The windshield I had  professional do it, It's meant for flat windows so he did the best he could, there are some scuff/blurred marks from the high heat to shrink it to the curvature of the windshield. I barely notice them, their mostly at near the edges. It's one of the biggest windshields too, so that's a factor.  

It reduces like 95% of the RF so it was definitely crucial for me to have it to drive around since I'm extremely sensitive. I don't think anyone here is as sensitive as I am.  I measured before and after with my Cornet plus meter.

I got the clear one from here, hardly notice it from the outside, and no visibility issues at all.  The door windows I installed over my tint, which made it a little darker, but no issues.

https://safelivingtechnologies.com/products/rf-shielding-window-film/ 

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Re: EMF blocking window film

Karl
In reply to this post by Karl
Someone asked by e-mail why conductivity would be important, and it seemed better to reply here...

It's because an electric current flowing in the film is what allows it to block radio signals.

If you put a piece of metal near a radio transmitter, an electric current will flow in the metal. That current has its own magnetic field, which conveniently cancels-out the magnetic field from the transmitter*.

Electricity also tends to flow in a way that cancels-out electric fields.

(*You can see a real-world example of that here: https://www.youtube.com/watch?v=d-ZdF-xkkns)
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Re: EMF blocking window film

Karl
In reply to this post by Neo
Great to hear that it worked!