Braided loops work like a Chinese finger trap; as the loop is pulled at the end of the line, the braid lengthens and constricts tighter around the entire length of line tip within the braid. Applying an adhesive or sealant to this entire length will prevent the braid from applying its extremely strong grip around the line. The glued-on braid may work fine, but it will be limited by a chemical bond rather than the mechanical grip that becomes increasingly stronger as it is pulled.

Braided loops can fail if they are pushed off the line at the cut end of the braid. It doesn't take much effort, either. Applying a nail knot or heat shrink tubing to the very end of the braid prevents this failure and protects from further fraying.

The diameter of the braid should be small enough that you can't just slip the braid over the line; it should take a minute or so of "inchworming" the braid onto the line. Also, don't be tempted to cut the braid down. It may seem excessively long, but the added length provides more surface area of grip on the line tip.