On Thursday, August 13, 2020 at 12:07:34 AM UTC-4, ProfJ wrote:
On Sunday, 9 August 2020 at 17:10:32 UTC-6, wrote:
Gaffers tape is a polyurethane over a cloth laminate and may not stretch the way you require.
Also much thicker.
Gaffer tape is designed specifically not to leave glue residue behind when removed (specifically useful eg. in the film industry, where tape has to be applied to carpets, clothing, sets etc.). It's basically less-sticky duct tape. I wouldn't use it on a glider, unless you have a phobia about glue residue.

I put mine on two seasons ago and it hasn't come off yet. I guess it has something to do with good surface preparation as well.

Uli
'AS'