Best adhesive for FRP board

[EricW]

Shower is getting there. Looking for best adhesive. I will probably use screws as well as FRP board adhesive but if someone has a better product in mind I'm open to ideas. I kind of imagine the FRP adhesive drying hard and cracking away quickly?

[jazty]

I think you're stuck with FRP adhesive. The stuff I used (FRP adhesive in a bucket) doesn't dry hard. It remains flexible, so cracking shouldn't be an issue. I have heard first hand encounters of other typical construction adhesives failing to bond with FRP.