@Mike Summers wrote:
I recently fixed beta-strip to the bilge-keels using a waterproof contact adhesive and have been impressed how well it has fixed the plastic to the GRP. Mind you I have yet to try it out in the water…
Mike, you might be interested (relieved?) to hear I did the same job a year ago and the beta strip is still as firmly attached as when I did it. Our boat had a fair amount of use last year including over a week afloat on a mooring. I too was very impressed how well it adhered to the grp.