On August 19, 2018 at 19:36, Zohan said...
Not this one
My bet is that you peeled it back and stuck it on. This is not enough. Some searching found the following notes. I added the highlighting.
Clean and dry surface before application. You can use any cleaner that will not leave a film or oily surface. We recommend using alcohol prep pads.
Peel tape from fastener and press firmly into place.
Adhesive reaches maximum strength after 24 hours.
The best method to remove VELCRO® brand adhesive-backed products is to use a citrus-based adhesive remover. Be sure to read the instructions on the adhesive remover carefully.
Note: Not recommended for fabrics, dashboards, flexible vinyl, or underwater use. Continued exposure to full sunlight can damage fastener.
A video I found of a guy mounting solar panels to the top of his van using Velcro starts with him advising to always clean the mounting surface with denatured alcohol. That's an echo of the instructions above.
