Type 1 Fixes may be used to mount ceiling panels quite successfully; using the ‘Buttonfix strength testing report’ here, and using figures based on the maximum perpendicular pull-out force rather than shear force, we can ascertain a maximum panel weight.

For example; mounting a panel using 4 x face-fixed Type 1 Fixes, a maximum panel mass of 148kg may be accommodated (Including a 1.4 safety factor and using bolted fixings).

Type 2 Fixes are NOT suitable for ceiling panels, if the panel load is pulling directly to disengage the Fix and Button. Even if a ceiling panel under test appears secure, and the panel weight is well below the Fix disengagement force, the steady load on the Fix ‘jaws’ causes creep in the polymer, which may lead to the panel disengaging days, or even weeks later.