Most types of side tape in my opinion only are decoration and do little when they are put on your table tennis bat. What they do for sure is add weight to the head of your blade. The positive point is that it for sure keeps out the moisture which is really bad for balsa blades. If your blade has more solid wood in the core then you probably already have a heavy blade so I wouldn't go heavier. Edge tape is practically like putting a bit of material over something so it won't do anything when you smash your bat into the table.
Some people that are extreme use rubber or plastic types and I think if you are using super light fragile blades and are going for a defensive blocking style it would be fine. Remember also if you edge tape your balsa blade that when you need to put new rubbers on you have to take off the edge tape which will certainly rip out half of the balsa.
I wouldn't put sided tape on my table tennis bat!
Comments
I use a small strip of edge
I use a small strip of edge tapeon the top corner of my blade because when chopping it's not unheard of to smack your racquet onto the floor or table. That said mine it's your ordinary edge tape, it has a little bit of sponge.
In fact it's the same edge tape that Zhang Jike uses.
PanPong