Ash Burton wrote:

alan_m wrote:

I need to surface fix some plastic electrical trunking to a fairly
irregular surface internal wall.Â* Would a grab adhesive be suitable for
this application or would I be better off drilling through the back and
attaching using screws?

Screw fixing is always preferable on an irregular surface.

Or double-sided foam tape, if it'll be SEP by the time it needs to be
removed ...