I have five plastic (polycarbonate) squares that I need to hang / attach them to the ceiling (concrete). They can touch the ceiling, or have little (maximum 2 inches) gap between the square and the ceiling.
They weight around 1.5 lbs / 600 grams each, and are 8x8x1.4 inches / 200x200x35 mm.
Not only they are polycarbonate, but they are smooth, so adhesives don't stick to it easily. Also, there is not a single hole that I could use as a support.
Picture a smooth polycarbonate square.
They are going to be hang / attached to the ceiling, so there is gravity pulling them downwards too.
Ideally, attach in a way that it is not very hard to remove and with no to little damage to the squares and ceiling. I tried these foam adhesives, they fell after a few days unfortunately, mainly because they did not adhere to smooth polycarbonate.
Ideas of what I can do? I could attach something (a wire? piece of metal?) to the squares using silicone, and go from there. Has to be something aesthetically acceptable.
Any ideas appreciated!