I find silicone cement to be a good sealant and a less than powerful adhesive, but that depends on what you are gluing. If you are using pvc I recommend a standard pvc cement which will bond the pipe pieces together. Silicon sticks well to clean glass but not that well to plastics.
The tubes are 1/4 inch and can easily collapse with fingers. I am routing them under the top inside rim of a aquarium.Would some sort of clamp work better than Duct Tape? I haven't done this specific project before, but clamps are normally the go-to for maintaining good contact.
I am not trying to seal anything. I am trying to mount and tack things so the misting heads are pointed in the correct directions and the hose is nice and neat.Thanks for posting the exact kit you (will) have. The systems I have seen that are similar have not needed sealant.
I tried to upload a video but was unable.Looking forward to your results, please post some picture's if you can!