tesa Powerbond OUTDOOR - Double-Sided Mounting Tape for Outdoor Use - UV-, Water- and Temperature Resistant Adhesive Tape - Holds up to 1 kg per 10cm tape, 1,5m x 19mm : Amazon.co.uk:
Scotch® Outdoor Mounting Tape, 4011C, 1 in x 60 in x 0.045 in (2.54 cm x 1.52 m x 0.11 cm) | 3M Canada
Unibond No More Nails on a Roll Exterior Permanent Mounting Adhesive - 19mm x 1.5m | Homebase