Box sealing tape or parcel tape is a pressure sensitive tape used for closing or sealing corrugated fiberboard boxes. It consists of a pressure sensitive adhesive coated onto a backing material which is usually a polypropylene or polyester film which or oriented to have strength in both the long (machine) direction and the cross direction. Most often, the tape is 48 mm (aaprox 2 inch) wide but is also used in 72 mm (aprox 3 inch) widths. A variety of backing strengths and calipers as well as adhesive formulations are available. It is often transparent or tan (beige, buff, brown). Other colors and printing are sometimes available.
The tape is most often used as a closure for regular slotted containers (RSCs). A "single strip" or "center seam" closure is applied over the center seams of a box extending 50 - 75 mm (2 - 3 inches) onto the end panels. The tape can be used as a "six strip" closure or "H-seal" by applying cross strips on the ends of the box. This is used when a relatively weak tape is used or when extra box reinforcement is needed. This method also seals the box to help keep contaminants out.
Double-sided tape is a variety of adhesive tape that is coated with adhesive on both sides. It is designed to stick two lightweight surfaces together. Adhesive tape can be one of many varieties of backing materials coated with an adhesive. Water activated tape, gummed paper tape or gummed tape is starch or animal glue (gelatine) based adhesive on a paper backing. Gummed tape is used for closing and sealing boxes and casings. Before closing corrugated fiberboard boxes, the tape is wetted/remoistened to make the adhesive sticky again.
A specific type of gummed tape is called reinforced gummed tape (RGT). The backing of this reinforced tape consists of two layers of paper with a cross-pattern of fiberglass filaments laminated between. The laminating adhesive had previously been asphalt but now is more commonly a hot-melt atactic polypropylene. This is often three inches or 75 mm wide. Double sided tape is often more effective with sticking objects, such as paper, cardboard, and arts and crafts together than regular tape is. Also, double sided tape usually is not visible in the end product, due to it actually being in between the objects rather than overlaying them. This allows for neater looking projects and better craftsmanship. Besides this, double-sided tape is a highly effective grip for objects, such as the handle of a hammer, or the steering wheel of a car. This prevents the object from sliding in your hands, which could ultimately lead to possible injuries.
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