Adhesive Help
 

I am trying to attach a dash disk to the underside of my dashboard in my '98 Boxster in order to use a suction cup mount for my GPS. The dash disk came with 3M tape on it. That stuck for a few seconds until the weight of the GPS unit ripped it off the dash. I tried again with 3M heavy duty molding tape. It stayed a little longer (a few minutes) until gravity won out. I am looking for something to attach this disk to the dash that won't come off until I want to take it off.

Any ideas? I don't want to ruin the dash.

Thanks.

I was thinking 4" grabber screw until I saw that last sentence.

got the thinking it's underneath. A small hole will not be noticeable when removed.

What is a grabber screw?

got the grabber screw part. lol

Try wiping with acetone (test first) then denatured alcohol, air dry, then try again with molding tape. You have some treatment, perhaps silicone-based, on the dash tjat is keeping the adhesive from adhering.