I have a toll transponder with two suction cups that I place on my windshield. Where I place it on my windshield that are lots of little black bumps that are part of the glass, this is around the rearview mirror and the housing that holds the forward facing camera. Because of these bumps the suctions cups will not adhere. I went to Ace and bought a small thing of clear silicone. It works for about 4-6 weeks, then the transponder falls off. I have now been through this a few times. The silicone seems to adhere to the windshield fine, but less so to the plastic suction cups.
Is there something in between silicone and super glue that I can use for this purpose?
Posts: 2367 | Location: Orlando | Registered: April 22, 2007
My toll transponder is behind one side of rear view mirror and my dash cam behind other side. The toll tag's adhesive has been fine but don't know what it is. The dash cam is the good 3M 2-sided red tape and it's been excellent.
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Posts: 23714 | Location: Northern Suburbs of Houston | Registered: November 14, 2005
Originally posted by tatortodd: My toll transponder is behind one side of rear view mirror and my dash cam behind other side. The toll tag's adhesive has been fine but don't know what it is. The dash cam is the good 3M 2-sided red tape and it's been excellent.
If it's a HCTRA tag, it's good enough to never come loose, but just weak enough that I've transferred mine between 3 cars over the years as I've moved from one car to another.
What about something like rearview mirror adhesive. Intended to be permanent but can be removed with a razor blade. This one indicates it is compatible with plastic
The 3m double side red tape tatertodd mentions, that would adhere to the silicone cup and the window as well as anything. Might hit the cup with a good cleaner or alcohol to remove oil which should help.
Posts: 18151 | Location: South West of Fort Worth, Tx. | Registered: December 26, 2008
I'd suggest removing the suction cups and using the good 3m double stick. I normally suggest silicone, but I think the problem is the suction cups are offgassing, or bleeding a petroleum product when they get too hot.
Also, it's very important to prep the surfaces with a good alcohol wipe to remove any oily residue.
Same problem for me in Central Florida. Been thru the recommended solutions. There is a 3M product, double sided high temp (VHB) tape that I am trying now. I got mine on Amazon. Reviews said to make sure you get it from 3M as some things sold as 3M, weren't.
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Posts: 5188 | Location: Boca Raton, FL The Gunshine State | Registered: July 30, 2002
Originally posted by Timdogg6: Go get a SunPass at Publix
That's five bucks. EPass will mail you one, for free. Or stop in at one of their offices and pick one up. I think you can also get one at certain toll booths.
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Posts: 31490 | Location: Central Florida, Orlando area | Registered: January 03, 2010