When sealing your boxes closed, you should always use the proper method. We recommend using the H-tape method. For the most protection, you simply apply tape across all of the boxes open seams. That will make an H-shape across the top and bottom of your box – hence the name “H-tape method”.
If you want to seal your boxes more quickly, but still want a strong seal, you can move the tape inwards some and tape near the seams of the box instead of directly on them.
If you have an irregularly shaped box just make sure to apply tape to all of the seams or near them.
Also, if you have something like a tube, be sure to secure the two sealed ends of the tube with tape.
It’s as simple as that!