I had problems with some trim popping off on bumpy roads because it was fastened only with some clips. My cousin helped out by putting in a couple of screws. I then had some touch-up paint and put a dab on each screw. Has held for years.
However, whether there is enough backing in your case is something no one but the manufacturer of your unit can tell you, especially since we do not know what you have. We also do not know what piece of trim on your slide you are talking about, so I photo or better description will help.
I see that this is your first post. You need to go into the signature area and add the make, model, and year of whatever you are driving or towing. Look at mine, for example. That way, someone can much better answer your question.
Click on your name on the upper right, then select Account Details, and Signature to add details about your rig.
