remove RTV silicone from windsheidl

apollo18

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seems like the best way to permanent mount a radar detector is to use rtv silicome in the suction cups or get one of those metal permanent mounts and rtv silicome that. seems like they never fall or come lose ever but how do you go abouts removing the mount and the silicone from the windshield? would all the force of pulling and scraping crack the windshield in the area?

thanks
 

thebravo

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seems like the best way to permanent mount a radar detector is to use rtv silicome in the suction cups or get one of those metal permanent mounts and rtv silicome that. seems like they never fall or come lose ever but how do you go abouts removing the mount and the silicone from the windshield? would all the force of pulling and scraping crack the windshield in the area?

thanks
I should think a razor blade would scrape it loose... Though why not use the permanent mount with some of the 3m VBR tape which is what the mounts come with? There is also the blend mount as well
 

Up All Night

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Some people have uses a piece of thin hard wire (piano wire?) and slid it in parallel to the glass workin it back and forth like a saw blade.
Others have mentioned dental floss or fishing line. Same methodology.
Posted from my iPhone using the RDF Mobile App!
 

Got Jeep

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As Bravo said, the preferred method is 3M VHB tape. Amazing stuff.
If you go silicone, a razor blade would make easy work of it.
Good luck.
 

CPB

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seems like the best way to permanent mount a radar detector is to use rtv silicome in the suction cups or get one of those metal permanent mounts and rtv silicome that. seems like they never fall or come lose ever but how do you go abouts removing the mount and the silicone from the windshield? would all the force of pulling and scraping crack the windshield in the area?

thanks
Nah, shouldn't crack the windshield unless you do something like pry it with metal trying to remove. Even then it will be hard to crack.

As the others said, mono-filament, wire or razor blade would work fine.
 

apollo18

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thanks for the reply guys! i ordered some VHB tape, you guys think that’s just as good as the RTV sealant? i have the permanent mount but from months of switching vehicles i had to change the 3m on it because the VHB stopped taping ahah. but i’m scared that VHB will let loose in warmth or cold kinda like the double sided mounting tape I have on rn
 

bec128

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thanks for the reply guys! i ordered some VHB tape, you guys think that’s just as good as the RTV sealant? i have the permanent mount but from months of switching vehicles i had to change the 3m on it because the VHB stopped taping ahah. but i’m scared that VHB will let loose in warmth or cold kinda like the double sided mounting tape I have on rn
VHB has different product numbers -- google the one you ordered and it will tell you the supposed temperature tolerance of the adhesive. I think all of the ones listed for automotive application are at least 200 degrees F though, so it shouldn't fail due to heat unless your car is actually on fire.

With VHB or any adhesive it's going to be all about the surface prep. Make sure you scrape off the remnants of the previous adhesive if you're reusing the bracket, and hit it with some Goo Gone. Clean both the bracket and the windshield with rubbing alcohol and let it dry. Then make sure you apply plenty of pressure for at least 60 seconds to activate the adhesive.

VHB has a cure time too, so let it cure for 24 hours before mounting the detector. Guarantee that it will stick just as long as you want it to!

To get it off, put some Goo Gone on a rag and press it around the mount to let it soak in to the VHB. That'll loosen it enough to get it off, then just scrub with more Goo Gone to get the residue off.
 

schissler

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but i’m scared that VHB will let loose in warmth or cold
Properly prepped and it will be find. My current mounts have been holding for 2.5 years, through 115* Las Vegas summers (Probably 160+ interior temps when sitting) and -30 Canadian winter.

VHB has a cure time too, so let it cure for 24 hours
This is true, but the cure time also has to do with the ambient temp when applied. If it is at or below 50* it takes 3-4x as long as it does if applied at 80 or above. I've posted the data sheet from 3M on it before but you can find it somewhere on their site.

Anytime I've applied it in cooler weather, I've hit it with a heat gun for a good 5-10 mins first, then let it sit the 24hours.
 

bec128

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This is true, but the cure time also has to do with the ambient temp when applied. If it is at or below 50* it takes 3-4x as long as it does if applied at 80 or above. I've posted the data sheet from 3M on it before but you can find it somewhere on their site.
Good point, I remember that chart, but I'm having trouble digging it up again.

According to the 3M spec sheet, VHB should be applied at a temperature between 20 and 40C, with a minimum of 10C. So either apply it in your garage if it's warm enough, or park the vehicle in the sun and let it warm up before applying.
 

knight_man

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I want to point out, use a PLASTIC razor. They wont f up your glass like a metal one. They are used to remove tint everyday.
 

corkguykev

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You can get plastic crowbars on eBay that are used for removing car panels and trim etc....


The ones with the flat edges were sharp and strong enough to recently remove a sticker that was on the inside of the back door window since before I bought the car and it was welded on lol. Because they are made of plastic, they wont scratch your glass either :cool:
 

apollo18

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it seems like the uniden r3 sticky suction mount is pretty sticky when it comes from factory, i like this mount because its easy to get the radar perfectly centered as you can tilt and move it side to side and then set it.
can the sticky mount adhesive paired with the suction cup be able to hold thru hot summers? or will it let go one day?
if not then ill just rtv sealent it cuz it seems like those stay forever


but for my permanent mount im going to do vhb
 

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