Yes, prise it off slowly with 2 wood chisels.
On some of them, you may need silicone to seal the lowest seam. Depends on the design of shower base.
NO, Gorilla Glue is a form of polyurethane.
Silicone is best for that.
With a silicone or silicone based glue such as Goop or E 6000.
Silicone or silicone based glue will stick to almost everything.
To seal a small leak, possibly. My material of choice for sealing or adhering would be 100% silicone.
Try a silicone adhesive, such as Devcon. This adhered well to a %100 soft silicone rubber part I needed to glue onto some insoles.
You have to NAME the glue before we can answer that.
Super glue won't stick to silicone.
Silicone.
Silicone glue is very tenacious on cloth. You may not be able to do this without DAP Silicone Remover. -Available in Rona and Home Depot.
I would use 100% clear silicone. -But I would first look for easier ways to do this.