Does ceramic windshield film interfere or attenuate the readability of RFID tags?

Boricua · 03-10-2014, 10:20 PM

Do you have any idea if Ceramic window film would interfere or attenuate the readability of RFID tags?

Where I work I am required to install an RFID tag on the windshield to open a gate. I am considering installing Huper Optik Ceramic Series C40 on all the windows including the windshield, which is legal in PR. I would rather install the RFID tag on top of the film, inside of the car, in case that later on I decide to sell the car and need to remove the tag (without destroying the windshield film treatment to get to it).

bcl0328 · 03-11-2014, 07:36 AM

it shouldn't. as long as there isn't metal in the tint. just don't get 5% tint.

Cyberdemon · 03-11-2014, 08:24 AM

You should not have a problem. Most external RFID antennas are well powerful enough to blast past a few mil of anything. Your whole car is metal, so the film won't attenuate anything out of the norm, even if it was a metallic film.

Boricua · 03-11-2014, 08:25 AM

Quote:

Originally Posted by bcl0328

it shouldn't. as long as there isn't metal in the tint. just don't get 5% tint.

That would not only be illegal but impractical!

Choosing the more expensive ceramic film should prevent metal interference then.

claykin · 03-11-2014, 07:23 PM

Quote:

Originally Posted by Boricua

That would not only be illegal but impractical!

Choosing the more expensive ceramic film should prevent metal interference then.

What film are you considering? My recommendation for windshields would be 3M Crystalline or Llumar Airblue. Crystalline is much better. Keep in mind that tinting windshields is typically illegal and also often brings out the (often annoying) artifacts in the curved/bent windshield glass.

Philipangoo · 03-12-2014, 11:59 AM

I went with Llumar Airblue and I have no issues with my RFID tolltag and no interference with any of my radar detectors or gps or anything. THe stuff is great!

Boricua · 03-22-2014, 04:48 PM

Quote:

Originally Posted by claykin

What film are you considering? My recommendation for windshields would be 3M Crystalline or Llumar Airblue. Crystalline is much better. Keep in mind that tinting windshields is typically illegal and also often brings out the (often annoying) artifacts in the curved/bent windshield glass.

I will be installing HO C40 all around (including the windshield, yes, that is legal in sunny Puerto Rico) and HO C30 in the sunroof. I am considering installing toll RFID tags on the sunroof and a work gate RFID tag on the windshield.

Boricua · 04-09-2014, 02:26 PM

Yesterday I received my brand new 435i M Sport and it will be fitted with HO C40 later this week. My highway toll administrator claims that sticker-based RFID can't connect through window tinting, not even ceramic, but they gave me the option of purchasing a large RFID sensor bar than can even be stored in the glove box. It costed me an additional $18 but I consider it money well spent because I won't have to cut my sunroof film. A bonus points goes to the fact that I can transfer this sensor to another car when I sell this one. Now I'll have to see how my residence and work gates react to the film...

OC40 · 04-09-2014, 03:18 PM

Quote:

Originally Posted by Philipangoo

I went with Llumar Airblue and I have no issues with my RFID tolltag and no interference with any of my radar detectors or gps or anything. THe stuff is great!

I have a stupid question. I have air blue as well. Did you stick the radar detector on the windshield with the air blue? Any issues?

Orion4 · 04-09-2014, 03:44 PM

I have the Air Blue and have experienced absolutely no issue with FL SunPass systems, Radar detector operations or any visual distortions- day or night. My SunPass is stuck on the Air Blue just to the right of the Rear View Mirror and below the "dots". It is read everytime.

dmath · 04-09-2014, 08:33 PM

Quote:

Originally Posted by Boricua

Yesterday I received my brand new 435i M Sport and it will be fitted with HO C40 later this week. My highway toll administrator claims that sticker-based RFID can't connect through window tinting, not even ceramic, but they gave me the option of purchasing a large RFID sensor bar than can even be stored in the glove box. It costed me an additional $18 but I consider it money well spent because I won't have to cut my sunroof film. A bonus points goes to the fact that I can transfer this sensor to another car when I sell this one. Now I'll have to see how my residence and work gates react to the film...

That's a gorgeous car!

ChrisMT79 · 04-10-2014, 02:11 PM

Best solution for you B- is the new mount they have at Blendmount.com-
It mounts directly to your rearview mirror, and it remains extremely well placed without interfering with vision.
http://www.blendmount.com

Quote:

Originally Posted by OC40

I have a stupid question. I have air blue as well. Did you stick the radar detector on the windshield with the air blue? Any issues?

OC40 · 04-10-2014, 02:27 PM

Quote:

Originally Posted by ChrisMT79

Best solution for you B- is the new mount they have at Blendmount.com-
It mounts directly to your rearview mirror, and it remains extremely well placed without interfering with vision.
http://www.blendmount.com

Quote:

Originally Posted by OC40

I have a stupid question. I have air blue as well. Did you stick the radar detector on the windshield with the air blue? Any issues?

I saw that on amazon last night! I only want the detector for road trips. I don't need one everyday.

03-10-2014, 10:20 PM	#1
Boricua New Member 11 Rep 27 Posts Drives: 330ci Performance Join Date: Oct 2013 Location: Puerto Rico iTrader: (0)	Does ceramic windshield film interfere or attenuate the readability of RFID tags? Do you have any idea if Ceramic window film would interfere or attenuate the readability of RFID tags? Where I work I am required to install an RFID tag on the windshield to open a gate. I am considering installing Huper Optik Ceramic Series C40 on all the windows including the windshield, which is legal in PR. I would rather install the RFID tag on top of the film, inside of the car, in case that later on I decide to sell the car and need to remove the tag (without destroying the windshield film treatment to get to it).
	Appreciate 0 Tweet Quote

03-11-2014, 07:36 AM	#2
bcl0328 Major 127 Rep 1,185 Posts Drives: 2012 328i Join Date: Mar 2012 Location: Abingdon, MD iTrader: (0)	it shouldn't. as long as there isn't metal in the tint. just don't get 5% tint.
	Appreciate 0 Quote

03-11-2014, 08:24 AM	#3
Cyberdemon Brigadier General 1538 Rep 3,331 Posts Drives: 2020 X5 40i, 2018 M3 Comp Join Date: Jun 2012 Location: Long Island NY iTrader: (3)	You should not have a problem. Most external RFID antennas are well powerful enough to blast past a few mil of anything. Your whole car is metal, so the film won't attenuate anything out of the norm, even if it was a metallic film. __________________ Current: '20 X5, '18 M3 ZCP Previous: '11 E90 335i, '11 E90 M3, '16 VW GTI, '15 M235i, '13 335i, '08 TL-S, '00 Corvette
	Appreciate 0 Quote

03-12-2014, 11:59 AM	#6
Philipangoo Lieutenant 36 Rep 465 Posts Drives: F30 335 Join Date: Oct 2012 Location: TX iTrader: (0)	I went with Llumar Airblue and I have no issues with my RFID tolltag and no interference with any of my radar detectors or gps or anything. THe stuff is great! __________________ 13 335i Msport 89 E30 325is 5spd
	Appreciate 0 Quote

04-09-2014, 02:26 PM	#8
Boricua New Member 11 Rep 27 Posts Drives: 330ci Performance Join Date: Oct 2013 Location: Puerto Rico iTrader: (0)	Another alternative to deal with my toll issue Yesterday I received my brand new 435i M Sport and it will be fitted with HO C40 later this week. My highway toll administrator claims that sticker-based RFID can't connect through window tinting, not even ceramic, but they gave me the option of purchasing a large RFID sensor bar than can even be stored in the glove box. It costed me an additional $18 but I consider it money well spent because I won't have to cut my sunroof film. A bonus points goes to the fact that I can transfer this sensor to another car when I sell this one. Now I'll have to see how my residence and work gates react to the film... Attached Images
	Appreciate 0 Quote

04-09-2014, 03:44 PM	#10
Orion4 Lieutenant Colonel 481 Rep 1,572 Posts Drives: 2013 335i Sport Line Sedan Join Date: Aug 2009 Location: Melbourne, FL iTrader: (0)	I have the Air Blue and have experienced absolutely no issue with FL SunPass systems, Radar detector operations or any visual distortions- day or night. My SunPass is stuck on the Air Blue just to the right of the Rear View Mirror and below the "dots". It is read everytime.
	Appreciate 0 Quote