Had a quick look for more details on the particular adhesive that I used. It "exceeds the requirements of BS-EN204 D4". That particular standard specifies a minimum bond strength of 4N/mm^2 and that is in 7 days of "standard atmosphere" followed by 4 days underwater, and another 7 days in standard atmosphere.
To put that into real numbers, that's about 14,700kg worth of force, minimum. I'm pretty confident it can handle the slight imbalance of my gear